Trihydroxy stearin as well as preparation process and application thereof

Abstract

The invention belongs to the technical field of chemical processes, and discloses trihydroxy stearin and a preparation process and application thereof.The trihydroxy stearin comprises a reaction tank connected with a mounting frame and used for mounting and fixing the reaction tank; the tank cover is connected to the reaction tank; the driving structure is connected to the tank cover, and one end of the driving structure is located in the reaction tank; the driving structure comprises a first driving part and is connected with a stirring shaft, a first stirring block and a second stirring block are arranged on the outer side of the stirring shaft and are used for stirring and mixing raw materials in the reaction tank, and a first adjusting structure is arranged on the stirring shaft, the first stirring block and the second stirring block. By adjusting the action of the first stirring block and the adjusting block, the stirring mode is changed according to materials with different viscosities in the reaction tank, so that the materials can be fully mixed and reacted, the overall stirring effect is improved, and the preparation efficiency of the trihydroxy stearin is conveniently improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of chemical engineering processes, and in particular relates to a trihydroxystearin and its preparation process and application. Background Art

[0002] Trihydroxystearin belongs to glyceride compounds and is formed by the esterification reaction of 12 - hydroxystearic acid and 1,2,3 - glycerol. Under normal temperature and pressure, trihydroxystearin is usually a light yellow or yellow flaky solid substance with a certain melting point range. It is insoluble in water but has good solubility in some organic solvents (such as chloroform, ether, hot ethanol, etc.). With its certain dispersibility, suspension, thickening properties and good oil properties, it is widely used in the formulation of cosmetics and can be used as a suspending agent, dispersing agent, fatting agent, thickening agent, etc.

[0003] When preparing trihydroxystearin, it is necessary to go through the steps of hydrogenation reaction, alkali washing, decolorization, filtration and refining in a reaction kettle. Stirring is carried out in the reaction kettle through a stirring structure to make it fully mixed and react. However, during use, the viscosity of the materials in the reaction kettle is low in the early stage, while the products in the reaction kettle gradually increase and the viscosity becomes thick in the later stage. The stirring structure cannot be changed according to the different states of the materials, which is not convenient for promoting the uniform mixing of the materials and improving the overall stirring effect. Summary of the Invention

[0004] The present invention proposes the following technical solution for the problems in the prior art: A trihydroxystearin, the molecular formula of the trihydroxystearin is C 57 H 110 O9, with an appearance of light yellow or yellow flaky solid, having a slight special smell, insoluble in water, and capable of being miscible with cetyl / stearyl alcohol or CMEA in a molten state. The trihydroxystearin is manufactured by esterifying 12 - hydroxystearic acid and 1,2,3 - glycerol, and then through refining and drying; The device applied to the refining process of 12 - hydroxystearic acid and 1,2,3 - glycerol includes: A reaction tank, connected with a mounting rack for installing and fixing the reaction tank; A tank cover, connected to the reaction tank; A driving structure, connected to the tank cover, with one end of the driving structure located inside the reaction tank; The driving structure includes a first driving member, connected with a stirring shaft. The outer side of the stirring shaft is provided with a first stirring block and a second stirring block for stirring and mixing the raw materials in the reaction tank. The stirring shaft, the first stirring block and the second stirring block are provided with a first adjustment structure.

[0005] Further, the first adjustment structure includes: The second driving member is connected to a rotating shaft, and a plurality of moving blocks are threadedly connected to the rotating shaft. A first stirring block is connected to one side of the plurality of moving blocks; The fixed rod, and adjacent moving blocks are connected by the fixed rod.

[0006] Furthermore, a moving port is formed on one side of the stirring shaft close to the first stirring block. A telescopic plate is arranged in the moving port, and the telescopic plate is located on the upper and lower sides of the moving block.

[0007] Furthermore, a second adjusting structure is arranged on the moving block, the first stirring block and the second stirring block. The second adjusting structure includes: The third driving member is connected to a rotating rod, and a gear is connected to the rotating rod; The first rack engages with the gear, and the gear engages with the second rack; Two adjusting blocks are respectively slidably connected to the first stirring block and the second stirring block; The moving structure is arranged on one side of the first rack and the second rack, and the moving structure is connected to the adjusting block; The third rack is arranged in the second stirring block, and the third rack is connected to the second rack through a connecting structure.

[0008] Furthermore, the connecting structure includes: The first electric push rod is connected to the second rack, and the first electric push rod is magnetically matched with the second rack; The moving block and the stirring shaft communicate with the first stirring block through the movable port, and one end of the third rack is located in the movable port and is arranged opposite to the second rack.

[0009] Furthermore, the moving structure includes: The first movable block is connected to the second rack; The second movable block is connected in the second stirring block. The first movable block and the second movable block are connected to the adjusting block through a connecting block, and a compression spring is connected to one side of the first movable block and the second movable block.

[0010] Furthermore, moving grooves are formed at the tops of the first stirring block and the second stirring block. The connecting block is slidably connected to the inner wall of the moving groove. A baffle is connected to the connecting block, and the baffle is connected to the inner wall of the moving groove. Fixed blocks are connected to both sides of the connecting block, and the fixed blocks are movably connected to the inner wall of the moving groove.

[0011] Furthermore, a cleaning structure is arranged in the first stirring block and the second stirring block. The cleaning structure includes: The fourth driving member is connected to a scraper through a movable rod; The second electric push rod is fixed in the first stirring block and the second stirring block through a mounting plate; A movable plate is connected to the third driving member on one side of the second electric push rod and the movable rod. Chute are provided on the inner walls of the first stirring block and the second stirring block, and the movable plate is slidably connected to the chute.

[0012] The present invention also provides a preparation process using the above-mentioned trihydroxystearin, including the following steps: Step 1: Add the metered 12-hydroxystearic acid and 1,2,3-propanetriol into the reaction tank, and operate under closed negative pressure. After the feeding is completed, introduce hydrogen into the reaction tank to carry out a hydrogenation reaction to displace the air in the reaction tank. Step 2: Turn on the heating device to raise the temperature of the materials in the reaction tank. At the same time, drive the stirring shaft, the first stirring block and the second stirring block to stir through the first driving member to promote the reaction. After the reaction is completed, cool the reaction product, and then add an appropriate amount of alkali solution for alkali washing. Step 3: After alkali washing, rinse the reaction product with deionized water to remove the residual alkali solution and salts. Start the first adjustment structure and the second adjustment structure, and adjust the positions of the first stirring block and the adjustment block under the action of the moving structure and the connecting structure. Use activated carbon or diatomaceous earth as a decolorizing agent, add it to the reaction tank, and carry out decolorization under the adjusted stirring conditions. Step 4: The product after decolorization is first filtered through a coarse filter to remove larger particle impurities, and then further purified through a fine filter to finally obtain a trihydroxystearin product that meets the quality requirements. The application of the trihydroxystearin provided by the present invention in cosmetics is applied to shampoo, body wash, facial cleanser, hair conditioner, color cosmetics, BB cream, primer, foundation, cream and lotion.

[0013] The beneficial effects of the present invention are as follows: (1) By adjusting the functions of the first stirring block and the adjustment block, the present invention changes the stirring method according to the materials with different viscosities in the reaction tank, so that the materials can be fully mixed and reacted, improving the overall stirring effect and facilitating the improvement of the production efficiency of trihydroxystearin. (2) The present invention can adjust the stirring of the scraper. When the adjustment block moves, it can remove the materials remaining on the first stirring block and the second stirring block. At the same time, through the movement of the second electric push rod, the scraper is knocked, so that the adjustment block, the first stirring block and the second stirring block vibrate, further improving the effect of removing the remaining materials, and thus facilitating the improvement of the service life of the first stirring block and the second stirring block. (3) The trihydroxystearin of the present invention is used in shampoo, which can improve the wet and dry combability of hair, has excellent fatting properties and moisturizing effects; enhances the pearlescent effect of the product; has super suspension ability, which can make silicone oil, grease, pearlescent powder, ZPT, titanium dioxide, etc. stable in systems such as shampoo and body wash; effectively prevents the low-temperature jelly property of liquid washing products; is a multi-purpose high-melting natural wax, which can be used as a thickening and shaping agent and can reduce the greasiness of the formula; has good dispersion and suspension ability for color powder, enabling the color powder to be stably dispersed in the medium in makeup and not easily aggregated and settled. Brief Description of the Drawings

[0014] Figure 1 Shows the overall structural schematic diagram of the embodiment.

[0015] Figure 2 Shows the cross-sectional view of the reaction tank of the embodiment.

[0016] Figure 3 Shows Figure 2 Enlarged view of part A.

[0017] Figure 4 Shows the structural diagram of the driving structure of the embodiment.

[0018] Figure 5 Shows the structural diagram of the first adjustment structure of the embodiment.

[0019] Figure 6 Shows the cross-sectional view of the first stirring block, the second stirring block and the moving block of the embodiment.

[0020] Figure 7 Shows the internal structural diagram of the moving block and the first stirring block of the embodiment.

[0021] Figure 8 Shows the structural diagram of the second adjustment structure of the embodiment.

[0022] Figure 9 Shows the structural diagram of the second stirring block and the adjustment block of the embodiment.

[0023] Figure 10 Shows the cross-sectional view of the second stirring block and the adjustment block of the embodiment.

[0024] Figure 11 Shows Figure 10 Enlarged view of part B.

[0025] In the figure: 1, reaction tank; 2, mounting rack; 3, tank cover; 4, fixing rack; 5, first driving member; 6, stirring shaft; 7, first stirring block; 8, second stirring block; 9, second driving member; 10, rotating shaft; 11, moving block; 12, fixing rod; 13, telescopic plate; 14, third driving member; 15, gear; 16, first rack; 17, second rack; 18, adjusting block; 19, third rack; 20, first electric push rod; 21, magnetic block; 22, first movable block; 23, second movable block; 24, connecting block; 25, baffle; 26, fixing block; 27, fourth driving member; 28, scraper; 29, second electric push rod; 30, movable plate. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0027] The present invention provides a tripalmitin, as Figures 1 to 5 shown, the molecular formula of tripalmitin is C 57 H 110 O9, and it appears as a light yellow or yellow flaky solid, with a slight special smell, insoluble in water, and can be miscible with cetyl / stearyl alcohol or CMEA in a molten state. The tripalmitin is manufactured by esterifying 12-hydroxystearic acid with 1,2,3-propanetriol, and then through refining and drying; The device applied to the refining process of 12-hydroxystearic acid and 1,2,3-propanetriol includes a reaction tank 1, a tank cover 3 and a driving structure. The outer side of the reaction tank 1 is fixedly connected with a mounting rack 2 for installing and fixing the reaction tank 1. The tank cover 3 is fixedly connected to the top of the reaction tank 1, and the driving structure is connected to the tank cover 3. A fixing rack 4 is fixedly installed on the top of the tank cover 3. Through the fixing rack 4, it is convenient to install the driving structure, so that the driving structure can drive the stirring shaft 6, the first stirring block 7 and the second stirring block 8 to stir the raw materials inside the reaction tank 1. One end of the driving structure is located inside the reaction tank 1. The driving structure includes a first driving member 5, a stirring shaft 6, a first stirring block 7, a second stirring block 8 and a first adjusting structure. The first driving member 5 is located on the top of the tank cover 3 and fixedly installed with the fixing rack 4. The bottom of the first driving member 5 is fixedly connected with a stirring shaft 6. The stirring shaft 6 passes through the tank cover 3 and extends into the reaction tank 1. The outer side of the stirring shaft 6 is provided with a first stirring block 7 and a second stirring block 8. The number of the first stirring block 7 and the second stirring block 8 is the same. The first stirring block 7 and the second stirring block 8 are both arranged on the outer side of the stirring shaft 6 in a linear array, and the first stirring block 7 and the second stirring block 8 are arranged staggeredly for stirring and mixing the raw materials in the reaction tank 1. The stirring shaft 6, the first stirring block 7 and the second stirring block 8 are provided with a first adjusting structure for adjusting the position of the first stirring block 7, thereby improving the stirring and mixing effect.

[0028] In this embodiment, the first driving member 5 can be a motor. By driving the stirring shaft 6, the first stirring block 7 and the second stirring block 8 to rotate through the first driving member 5, the raw materials with low viscosity placed inside the reaction tank 1 can be stirred and mixed. Strong axial flow is generated by the stagger - arranged first stirring block 7 and second stirring block 8, enabling the material to circulate and flow rapidly inside the reaction tank 1 and promoting the uniform mixing of the material.

[0029] During use, after the raw materials are placed inside the reaction tank 1, the first driving member 5 is started to drive the stirring shaft 6 to rotate, so that the first stirring block 7 and the second stirring block 8 stir the material, making the raw materials evenly mixed, which is convenient for subsequent reactions. When the viscosity inside the reaction tank 1 becomes thicker, the first adjustment structure is started to adjust the position of the first stirring block 7. Through the action of the adjustment block 18, a frame - type stirring structure is formed by the first stirring block 7, the second stirring block 8 and the adjustment block 18. The adjustment block 18 can better fit the inner wall of the reaction tank 1 for effective stirring, preventing the material from accumulating at the inner wall of the reaction tank 1, ensuring the overall stirring effect and facilitating the improvement of the production effect of trihydroxystearin.

[0030] As Figures 3 to 5 shown, in order to adjust the position of the first stirring block 7 so that the first stirring block 7 and the second stirring block 8 are kept horizontal, and further facilitate the simultaneous movement of the two adjustment blocks 18 to better fit the inner wall of the reaction tank 1 and stir the material, the first adjustment structure includes a second driving member 9, a rotating shaft 10, a moving block 11 and a fixing rod 12. The output end of the second driving member 9 is in transmission connection with a rotating shaft 10. A plurality of moving blocks 11 are threadedly connected to the rotating shaft 10. One side of the plurality of moving blocks 11 is fixedly connected to the first stirring block 7. The adjacent moving blocks 11 are connected by a fixing rod 12. The fixing rod 12 facilitates the simultaneous movement of the plurality of moving blocks 11 and the first stirring block 7 along the rotating shaft 10, facilitating the simultaneous adjustment of the position of the first stirring block 7. A fixing groove is provided in the middle of the stirring shaft 6. The second driving member 9 is fixedly installed on the inner wall of the bottom of the fixing groove. The top of the rotating shaft 10 is rotatably connected to the inner wall of the top of the fixing groove. The moving block 11 is slidably connected to the inner wall of the fixing groove. A moving port is provided on one side of the stirring shaft 6 close to the first stirring block 7. A plurality of telescopic plates 13 are arranged inside the moving port. The telescopic plates 13 are located above and below the moving block 11. The fixed ends of the telescopic plates 13 at the upper and lower ends of the moving port are fixedly installed on the inner wall of the moving port. The telescopic ends of the telescopic plates 13 at the upper and lower ends of the moving port are fixedly installed on the moving block 11. The telescopic plates 13 between the first stirring blocks 7 are fixedly installed on the first stirring block 7. The telescopic plates 13 shield and protect the moving port through their telescopic movement.

[0031] In this embodiment, the second driving member 9 can be a motor. By starting the second driving member 9, the rotating shaft 10 is driven to rotate along the inner wall of the top of the fixed groove. Since the moving block 11 is slidably connected to the inner wall of the fixed groove, the moving block 11 moves downward along the rotating shaft 10. Under the action of the fixing rod 12, a plurality of moving blocks 11 and the first stirring block 7 are driven to move downward along the inner wall of the movable opening at the same time, so that the first stirring block 7 moves to the same horizontal line as the second stirring block 8, and the first stirring block 7 and the second stirring block 8 are kept in a horizontal state. Thus, it is convenient for the second adjusting structure to drive the adjusting block 18 to move to the inner wall of the reaction tank 1 and fit the inner wall of the reaction tank 1, which is convenient for preventing the material from adhering to the inner wall of the reaction tank 1 and affecting the mixing effect of the material. When the moving block 11 moves, the telescopic plate 13 expands and contracts as the moving block 11 moves, shielding and protecting the moving opening to prevent the material from entering the inside of the fixed groove through the moving opening and affecting the movement of the second driving member 9, the rotating shaft 10 and the moving block 11 inside the fixed groove. Furthermore, it is convenient for adjusting the position of the first stirring block 7.

[0032] As Figures 5 to 8 shown, in order to simultaneously adjust the positions of the adjusting blocks 18 on the first stirring block 7 and the second stirring block 8, so that the first stirring block 7, the second stirring block 8 and the adjusting block 18 can form a frame stirring structure to improve the stirring effect, a second adjusting structure is provided on the moving block 11, the first stirring block 7 and the second stirring block 8. The second adjusting structure includes a third driving member 14, a rotating rod, a gear 15, a first rack 16, a second rack 17, a third rack 19, an adjusting block 18, a moving structure and a connecting structure. The output end of the third driving member 14 is in transmission connection with a rotating rod. The bottom of the rotating rod is rotatably connected to the inner wall of the moving block 11. One end of the rotating rod is fixedly connected with a gear 15. One side of the gear 15 is meshed with a first rack 16, and the other side of the gear 15 is meshed with a second rack 17. The moving block 11 communicates with the first stirring block 7, which is convenient for the second rack 17 to drive the adjusting block 18 to move along the outside of the first stirring block 7 to adjust the position of the adjusting block 18 when the second rack 17 moves. The first rack 16 and the second rack 17 are movably connected to the inner walls of the moving block 11 and the first stirring block 7. Two adjusting blocks 18 are respectively slidably connected to the first stirring block 7 and the second stirring block 8. The moving structure is arranged on one side of the first rack 16 and the second rack 17. There are two groups of moving structures, which are respectively located inside the first stirring block 7 and the second stirring block 8. One end of the moving structure is connected with an adjusting block 18, which can drive the adjusting blocks 18 on the first stirring block 7 and the second stirring block 8 to move. The third rack 19 is arranged in the second stirring block 8, and the third rack 19 is connected with the second rack 17 through a connecting structure.

[0033] In this embodiment, the third driving member 14 can be a motor. After the first stirring block 7 moves and remains horizontal with the second stirring block 8, by starting the third driving member 14, the rotating rod and the gear 15 are driven to rotate along the inner wall of the bottom of the moving groove, so that the first rack 16 moves from the moving block 11 into the second stirring block 8, pushing the moving structure inside the second stirring block 8, so that the moving structure drives the adjusting block 18 on the second stirring block 8 to move away from the stirring shaft 6. At the same time, the second rack 17 drives the second rack 17 to move into the first stirring block 7 through the connecting structure, so that the moving structure inside the first stirring block 7 drives the adjusting block 18 to move towards the inner wall of the reaction tank 1, bringing the adjusting block 18 to one end of the first stirring block 7 and the second stirring block 8 at the same time, so that one side of the adjusting block 18 fits against the inner wall of the reaction tank 1. When the first driving member 5 drives the stirring shaft 6 to rotate, the first stirring block 7 and the second stirring block 8 drive the adjusting block 18 to rotate, so that the adjusting block 18 fits against the inner wall of the reaction tank 1 and moves, preventing the viscous material in the reaction tank 1 from accumulating at the inner wall of the reaction tank 1 and affecting the overall stirring effect.

[0034] As Figures 6 to 9 shown, in order to drive the second rack 17 and the third rack 19 to move simultaneously when the first rack 16 moves, the connecting structure includes a first electric push rod 20. A groove is formed at one end of the second rack 17 away from the gear 15, and the first electric push rod 20 is fixedly installed inside the groove. A moving groove is formed on one side of the second rack 17. The moving block 11 and the stirring shaft 6 communicate with the first stirring block 7 through the movable opening. One end of the third rack 19 is located in the movable opening and is arranged opposite to the second rack 17. Magnetic blocks 21 are fixedly installed on one side of the second rack 17 and the third rack 19 corresponding to each other, and the magnetic blocks 21 are magnetically connected. The magnetic block 21 on one side of the second rack 17 is located inside the moving groove.

[0035] By starting the first electric push rod 20 to drive the magnetic block 21 to move, the magnetic block 21 is magnetically connected to the magnetic block 21 on one side of the third rack 19 through the movable opening. Then, when the first electric push rod 20 contracts, driving the two magnetic blocks 21 to move, when the two magnetic blocks 21 both move into the moving groove, the side of the third rack 19 is fitted against the side of the second rack 17. Therefore, when the gear 15 rotates, when the second rack 17 drives the third rack 19 to move into the first stirring block 7, it pushes the moving structure to move into the first stirring block 7, so that the moving structure drives the adjusting block 18 to move towards the inner wall of the reaction tank 1.

[0036] As Figures 6 to 9As shown, in order to enable the first rack 16 and the second rack 17 to move the adjusting blocks 18 on the first stirring block 7 and the second stirring block 8 simultaneously when they move, the moving structure includes a first movable block 22, a second movable block 23, a connecting spring, a connecting block 24, a baffle 25 and a fixed block 26. One side of the first movable block 22 is fixedly connected to the side of the second rack 17 away from the magnet block 21. The first movable block 22 is movably connected to the inner wall of the first stirring block 7. The second movable block 23 is movably connected inside the second stirring block 8. The top of the first movable block 22 and the second movable block 23 is fixedly connected with a connecting block 24. The first movable block 22 and the second movable block 23 are connected to the adjusting block 18 through the connecting block 24. A compression spring is connected to one side of the first movable block 22 and the second movable block 23. One end of the compression spring is fixedly connected to the inner walls of the first stirring block 7 and the second stirring block 8. In order to prevent materials from entering the first stirring block 7 and the second stirring block 8 when the adjusting block 18 moves, moving grooves are opened at the tops of the first stirring block 7 and the second stirring block 8. The connecting block 24 is slidably connected to the inner wall of the moving groove. The top of the connecting block 24 is slidably connected with a baffle 25. Both sides of the baffle 25 are fixedly connected to the inner wall of the moving groove. Fixed blocks 26 are fixedly connected to both sides of the connecting block 24. The fixed blocks 26 are movably connected to the inner wall of the moving groove.

[0037] When one end of the first rack 16 passes through the movable opening and moves into the second stirring block 8, it pushes the second movable block 23 inside the second stirring block 8 to drive the connecting block 24 to move along the inner wall of the moving groove. At the same time, when the second rack 17 drives the third rack 19 to move into the first stirring block 7, the first movable block 22 drives the connecting block 24 to move along the inner wall of the moving groove, so that the connecting block 24 moves along the inner walls of the bottoms of the first stirring block 7 and the second stirring block 8 respectively, so that the fixed blocks 26 move along the inner wall of the moving groove and move along the baffle 25, so that the compression spring is compressed. By means of the compression spring, it is convenient for the first movable block 22 and the second movable block 23 to drive the connecting block 24 to move back to the original position, so that the adjusting block 18 moves back to the original position, and the materials with low viscosity can be stirred again. At the same time, when the adjusting block 18 moves back to the original position, when the reaction tank 1 undergoes a hydrogenation reaction, it prevents the adjusting block 18 from fitting against the inner wall of the reaction tank 1 and affecting the effect of the hydrogen reaction. Through the baffle 25, it is convenient to shield the tops of the first stirring block 7 and the second stirring block 8, preventing the materials from entering the first stirring block 7 and the second stirring block 8 through the moving groove when the connecting block 24 and the adjusting block 18 move, affecting the movement of the first movable block 22, the second movable block 23 and the connecting block 24, and affecting the stirring effect of the first stirring block 7 and the second stirring block 8.

[0038] As Figures 9 to 11As shown in the figure, in order to prevent residual materials from adhering to the first stirring block 7 and the second stirring block 8 and affecting the stirring effect, a cleaning structure is provided inside the first stirring block 7 and the second stirring block 8. The cleaning structure includes a fourth driving member 27, a movable rod, a scraping plate 28, a second electric push rod 29, a mounting plate and a movable plate 30. A fourth driving member 27 is fixedly installed on one side of the inner walls of the first stirring block 7 and the second stirring block 8. The fourth driving member 27 is fixedly installed with a movable rod. One side of the movable rod is rotatably connected to the inner walls of the first stirring block 7 and the second stirring block 8. The fourth driving member 27 is fixedly connected with a scraping plate 28 through the movable rod. The scraping plates 28 are respectively located on the upper and lower sides of the first stirring block 7 and the second stirring block 8. The mounting plate is fixedly installed on the inner walls of the first stirring block 7 and the second stirring block 8. Second electric push rods 29 are fixedly installed on both the upper and lower sides of the mounting plate. A third driving member 14 and a movable rod on one side of the second electric push rod 29 are connected with a movable plate 30. Chute grooves are formed in the inner walls of the first stirring block 7 and the second stirring block 8. The movable plate 30 is slidably connected to the chute grooves.

[0039] In this embodiment, the fourth driving member 27 can be a motor. The fourth driving member 27 drives the movable rod to rotate along the inner walls of the first stirring block 7 and the second stirring block 8, so that the scraping plate 28 rotates, and the bottom of the scraping plate 28 contacts the first stirring block 7 and the second stirring block 8. When the adjusting block 18 moves, the scraping plate 28 can move to scrape the residual materials on the first stirring block 7 and the second stirring block 8. The angle of the scraping plate 28 is adjusted by the movable rod, which is convenient for scraping the materials that are difficult to remove and improves the cleaning effect. After the scraping plate 28 rotates to the horizontal state in place, the second electric push rod 29 is started to move up and down to knock the scraping plate 28. When the adjusting block 18 moves, the scraping plate 28 and the adjusting block 18 generate vibrations, and the first stirring block 7 and the second stirring block 8 also generate vibrations, further improving the effect of removing the residual materials, so as to facilitate improving the service life of the first stirring block 7 and the second stirring block 8.

[0040] The present invention also provides a preparation process using the above-mentioned trihydroxystearin, including the following steps: Step 1: Add the measured 12-hydroxystearic acid and 1,2,3-propanetriol into the reaction tank 1, and operate under closed negative pressure. After the feeding is completed, hydrogen is introduced into the reaction tank 1 for hydrogenation reaction to displace the air in the reaction tank 1. Step 2: Turn on the heating device to raise the temperature of the materials in the reaction tank 1. At the same time, the first driving member 5 drives the stirring shaft 6, the first stirring block 7 and the second stirring block 8 to stir to promote the reaction. After the reaction is completed, the reaction product is cooled, and then an appropriate amount of alkali solution is added for alkali washing. Step 3: After alkali washing, rinse the reaction product with deionized water to remove residual alkali liquor and salts. Start the first adjustment structure and the second adjustment structure, and adjust the positions of the first stirring block 7 and the adjustment block 18 under the action of the moving structure and the connecting structure. Use activated carbon or diatomaceous earth as the decolorizing agent, add it to the reaction tank 1, and carry out decolorization under the adjusted stirring conditions; Step 4: The product after decolorization is first filtered through a coarse filter to remove larger particle impurities, and then further filtered through a fine filter to improve the product purity, and finally a trihydroxystearin product meeting the quality requirements is obtained. The application of trihydroxystearin provided by the present invention in cosmetics is applied to shampoos, body washes, facial cleansers, hair conditioners, color cosmetics, BB creams, primer creams, foundations, cream emulsions. When applied to washing products, the dosage of CMEA is 1%, the dosage of 1618 alcohol or 16 alcohol is 0.3%, and the dosage of trihydroxystearin is 0.3%. Mix and heat to 85 °C until dissolved evenly, then add it to the surfactant system that has been dissolved at 85 °C while it is still hot and stir evenly, and homogenize at high speed for a while until dissolved evenly. Keep stirring at 80 - 85 °C for 30 minutes until completely dissolved to ensure the stability of silicone oil, grease and other substances in the system; When used in color cosmetic cream products, it can be directly added to the oil phase and heated together.

[0041] Working principle: During use, measure the 12 - hydroxystearic acid and 1,2,3 - propanetriol and add them to the reaction tank 1. Introduce hydrogen into the reaction tank 1 to carry out a hydrogenation reaction to displace the air in the reaction tank 1. Then turn on the heating device to raise the temperature of the materials in the reaction tank 1. At the same time, drive the stirring shaft 6, the first stirring block 7 and the second stirring block 8 to stir by the first driving member 5 to promote the reaction. After the reaction is completed, cool it, then add an appropriate amount of alkali liquor for alkali washing. Then start the second driving member 9 to drive the rotating shaft 10 to rotate along the inner wall of the top of the fixed groove. Since the moving block 11 is slidably connected to the inner wall of the fixed groove, the moving block 11 moves downward along the rotating shaft 10, and under the action of the fixed rod 12, drives a plurality of moving blocks 11 and the first stirring block 7 to move downward along the inner wall of the movable opening at the same time, so that the first stirring block 7 moves to the same horizontal line as the second stirring block 8. When the moving block 11 moves, the telescopic plate 13 expands and contracts as the moving block 11 moves to shield and protect the moving opening.

[0042] Then, by starting the third driving member 14, the rotating rod and the gear 15 are driven to rotate along the inner wall of the bottom of the moving groove, so that the first rack 16 moves from inside the moving block 11 to inside the second stirring block 8 through the movable opening, pushing the second movable block 23 inside the second stirring block 8 to move and driving the connecting block 24 to move along the moving groove, so that the fixed block 26 moves along the inner wall of the moving groove and moves along the baffle 25, causing the compression spring to compress, thereby moving the adjusting block 18 on the first stirring block 7 to fit against the inner wall of the reaction tank 1. At the same time, the first electric push rod 20 drives the magnetic block 21 to move, so that the magnetic block 21 is magnetically connected to the magnetic block 21 on one side of the third rack 19 through the movable opening. Then, the first electric push rod 20 contracts, driving the two magnetic blocks 21 to move, so that the two magnetic blocks 21 both move into the moving groove, fitting the side of the third rack 19 against the side of the second rack 17. When the gear 15 rotates, the second rack 17 and the third rack 19 drive the first movable block 22 and the connecting block 24 to move along the inner wall of the moving groove, so that the fixed block 26 moves along the inner wall of the moving groove and moves along the baffle 25, causing the compression spring to compress, thereby driving the adjusting block 18 on the second stirring block 8 to move and fit against the inner wall of the reaction tank 1. When the first driving member 5 drives the stirring shaft 6 to rotate, the first stirring block 7 and the second stirring block 8 drive the adjusting block 18 to rotate, so that the adjusting block 18 moves while fitting against the inner wall of the reaction tank 1. Then, activated carbon or diatomaceous earth is used as a decolorizing agent and added to the reaction tank 1, and decolorization is carried out under the adjusted stirring conditions, as well as subsequent filtration and refining processes.

[0043] When the adjusting block 18 moves, the fourth driving member 27 drives the movable rod to rotate along the inner walls of the first stirring block 7 and the second stirring block 8, so that the scraper 28 rotates, and the bottom of the scraper 28 contacts the first stirring block 7 and the second stirring block 8. When the adjusting block 18 moves, the scraper 28 can move to scrape the residual materials on the first stirring block 7 and the second stirring block 8. After the scraper 28 rotates to the horizontal state in place, the second electric push rod 29 is started to move up and down to strike the scraper 28. When the adjusting block 18 moves, the scraper 28 and the adjusting block 18 vibrate, and the first stirring block 7 and the second stirring block 8 vibrate, further improving the effect of removing the residual materials, thereby facilitating the improvement of the service life of the first stirring block 7 and the second stirring block 8.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it.

Claims

1. A trihydroxystearin, characterized in that The molecular formula of the trihydroxystearin is C 57 H 110 O9, light yellow or yellow flake solid, with a slight special smell, insoluble in water, can be mixed with cetearyl alcohol or CMEA in a hot melt state, the trihydroxystearin is made by esterifying 12-hydroxyoctadecanoic acid with 1,2,3-propanetriol, and then refining and drying; The devices used in the refining process of 12-hydroxyoctadecanoic acid and 1,2,3-propanetriol include: A reaction tank (1) is connected to a mounting frame (2) for mounting and fixing the reaction tank (1); A tank cover (3), connected to the reaction tank (1); A driving structure connected to the tank cover (3), one end of the driving structure being located inside the reaction tank (1); The driving structure comprises a first driving member (5) connected to a stirring shaft (6); a first stirring block (7) and a second stirring block (8) are arranged outside the stirring shaft (6) for stirring and mixing raw materials in the reaction tank (1); and a first adjusting structure is arranged on the stirring shaft (6), the first stirring block (7) and the second stirring block (8).

2. A preparation device for trihydroxystearin according to claim 1, characterized in that: The first adjustment structure comprises: A second driving member (9) is connected to a rotating shaft (10), a plurality of moving blocks (11) are threadedly connected to the rotating shaft (10), and one side of the plurality of moving blocks (11) is connected to the first stirring block (7); A fixing rod (12), adjacent moving blocks (11) are connected via the fixing rod (12).

3. The preparation device of trihydroxystearin according to claim 2, characterized in that: A moving opening is provided on a side of the stirring shaft (6) close to the first stirring block (7), a telescopic plate (13) is arranged in the moving opening, and the telescopic plate (13) is located on the upper and lower sides of the moving block (11).

4. The preparation device of trihydroxystearin according to claim 3, characterized in that: The moving block (11), the first stirring block (7) and the second stirring block (8) are provided with a second adjustment structure, wherein the second adjustment structure comprises: A third driving member (14) connected to a rotating rod, wherein the rotating rod is connected to a gear (15); A first rack (16) meshed with the gear (15), and the gear (15) meshed with a second rack (17); Two adjustment blocks (18) are slidably connected to the first stirring block (7) and the second stirring block (8) respectively; A movable structure, arranged on one side of the first rack (16) and the second rack (17), the movable structure being connected to the adjustment block (18); The third rack (19) is arranged in the second stirring block (8), and the third rack (19) is connected to the second rack (17) via a connecting structure.

5. The preparation device of trihydroxystearin according to claim 4, characterized in that: The connection structure comprises: A first electric push rod (20) is connected to the second rack (17), and the first electric push rod (20) and the second rack (17) are magnetically matched; The movable block (11) and the stirring shaft (6) are connected to the first stirring block (7) through a movable opening, and one end of the third rack (19) is located in the movable opening and is arranged opposite to the second rack (17).

6. The preparation device of trihydroxystearin according to claim 5, characterized in that: The mobile structure comprises: A first movable block (22) connected to the second rack (17); The second movable block (23) is connected to the second stirring block (8); the first movable block (22) and the second movable block (23) are connected to the regulating block (18) via a connecting block (24); and compression springs are connected to one side of the first movable block (22) and the second movable block (23).

7. The preparation device of trihydroxystearin according to claim 6, characterized in that: The first stirring block (7) and the second stirring block (8) are both provided with a movable groove at the top, the connecting block (24) is slidably connected to the inner wall of the movable groove, the connecting block (24) is connected to a baffle (25), the baffle (25) is connected to the inner wall of the movable groove, and the connecting block (24) is connected to fixed blocks (26) on both sides, and the fixed blocks (26) are movably connected to the inner wall of the movable groove.

8. The preparation device of trihydroxystearin according to claim 7, characterized in that: A cleaning structure is provided in the first stirring block (7) and the second stirring block (8), and the cleaning structure comprises: A fourth driving member (27) connected to a scraper (28) via a movable rod; A second electric push rod (29) is fixed inside the first stirring block (7) and the second stirring block (8) via a mounting plate; A third driving member (14) located on one side of the second electric push rod (29) is connected to a movable plate (30) with the movable rod, and inner walls of the first stirring block (7) and the second stirring block (8) are provided with sliding grooves, and the movable plate (30) is slidably connected to the sliding grooves.

9. A process for preparing trihydroxystearin, applied to the preparation device for trihydroxystearin according to claim 8, characterized in that: The following steps are involved: Step 1: adding measured 12-hydroxyoctadecanoic acid and 1,2,3-propanetriol into a reaction tank (1), and operating under a closed negative pressure. After the addition is completed, hydrogen is introduced into the reaction tank (1) to carry out a hydrogenation reaction and replace the air in the reaction tank (1); Step 2: Turn on the heating device to heat the material in the reaction tank (1), and at the same time, drive the stirring shaft (6), the first stirring block (7) and the second stirring block (8) through the first driving member (5) to stir and promote the reaction. After the reaction is completed, cool the reaction product, and then add an appropriate amount of alkali solution for alkali washing; Step 3: After alkali washing, the reaction product is rinsed with deionized water to remove residual alkali solution and salt, the first regulating structure and the second regulating structure are started, and the positions of the first stirring block (7) and the regulating block (18) are adjusted under the action of the moving structure and the connecting structure, and activated carbon or diatomaceous earth is used as a decolorizing agent, which is added to the reaction tank (1) and decolorization is performed under the adjusted stirring conditions; Step 4: The decolorized product is first coarsely filtered to remove larger particle impurities, and then finely filtered to further improve the product purity, and finally a trihydroxystearin product that meets the quality requirements is obtained.

10. Use of trihydroxystearin according to claim 9 in cosmetics, characterized in that: Used in shampoo, shower gel, facial cleanser, conditioner, makeup, BB cream, primer, foundation, cream and lotion.

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