High-purity isopropanol preparation equipment
By combining multiple distillation and adsorption purification mechanisms, the problems of low capacity and high energy consumption of existing isopropanol distillation equipment have been solved, achieving the preparation of high-purity isopropanol, meeting electronic-grade purity requirements, and reducing energy consumption.
Patent Information
- Application Number
- CN202423017786.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing isopropanol distillation equipment has low capacity, high energy consumption, and poor process stability, making it difficult to achieve electronic-grade purity.
Multiple distillation and adsorption purification mechanisms are employed, combined with condensation, heating, adsorption, and constant temperature control, to achieve multiple distillations and further purification processes.
The purity of isopropanol was improved to meet electronic grade requirements, energy consumption was reduced, and process stability was improved.
Smart Images
Figure CN223732128U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of electronic chemical preparation, in particular to a high-purity isopropyl alcohol preparation device. BACKGROUND
[0002] With the rapid development of the semiconductor and microelectronic industries, the demand for ultraclean high-purity electronic chemicals is increasing. As a key reagent in the cleaning process, the purity of isopropyl alcohol is crucial to the yield and performance of products.
[0003] Isopropyl alcohol is an organic compound, an isomer of n-propanol, also known as dimethyl methyl alcohol, 2-propanol, and IPA in the industry. It is a colorless transparent liquid with a smell similar to a mixture of ethanol and acetone, soluble in water, alcohol, ether, benzene, chloroform and most organic solvents. It is mainly used in pharmaceuticals, cosmetics, plastics, fragrances, coatings, etc. During production and manufacturing, isopropyl alcohol needs to be distilled and purified to remove water from isopropyl alcohol, thereby preparing high-purity isopropyl alcohol.
[0004] Most of the isopropyl alcohol distillation devices on the market are atmospheric single-tower distillation devices, which have low production capacity, high energy consumption and poor process stability, so the purity of the obtained product is often difficult to reach the level of electronic-grade isopropyl alcohol. CONTENT OF THE INVENTION
[0005] In order to improve the purification effect of isopropyl alcohol in the production and preparation process, thereby improving the purity of the prepared isopropyl alcohol, the application provides a high-purity isopropyl alcohol preparation device.
[0006] The application provides a high-purity isopropyl alcohol preparation device, which adopts the following technical scheme:
[0007] A high-purity isopropyl alcohol preparation device, comprising a mounting base, a mounting rack is arranged on the mounting base, a plurality of groups of distillation and purification mechanisms are arranged on the mounting rack in sequence, the distillation and purification mechanism comprises a distillation tower arranged on the mounting rack, a feed pipe is arranged on the distillation tower, a heating assembly is arranged at the bottom of the distillation tower, and the heating assembly is arranged on the mounting base, a discharge pipe is arranged at the top of the distillation tower, a condensation assembly is arranged at the end of the discharge pipe away from the distillation tower, the condensation assembly is connected with the feed pipe of the next group of distillation and purification mechanisms, and an adsorption and purification mechanism is further arranged on the mounting base, which is used for further purifying isopropyl alcohol after multiple distillations.
[0008] By adopting the above technical scheme, the multiple distillation purification mechanisms are used to help the isopropyl alcohol to be distilled for multiple times, thereby helping to improve the purification effect of the isopropyl alcohol in the production and preparation process, and further helping to improve the purity of the prepared isopropyl alcohol. The adsorption purification mechanism helps to remove the residual water and the organic impurities that are difficult to remove by distillation in the isopropyl alcohol, and helps to further purify the isopropyl alcohol, thereby helping to further improve the purification effect of the isopropyl alcohol in the production and preparation process, and further helping to further improve the purity of the prepared isopropyl alcohol.
[0009] In one specific implementation scheme, the adsorption purification mechanism comprises a fixing frame, a purification assembly and a constant temperature assembly are arranged on the fixing frame, the purification assembly is used for further purifying the isopropyl alcohol after multiple distillations, and the constant temperature assembly is used for maintaining the purification assembly at a set working temperature.
[0010] By adopting the above technical scheme, the purification assembly helps to remove the residual water and the organic impurities that are difficult to remove by distillation in the isopropyl alcohol, and helps to further purify the isopropyl alcohol, thereby helping to further improve the purification effect of the isopropyl alcohol in the production and preparation process, and further helping to further improve the purity of the prepared isopropyl alcohol. The constant temperature assembly helps to maintain the purification assembly at a set working temperature, thereby helping to guarantee the use effect of the purification assembly.
[0011] In one specific implementation scheme, the purification assembly comprises a column, a molecular sieve filler, an inlet pipe and an outlet pipe, the column is arranged on the fixing frame, the inlet pipe is arranged at the top of the column, the outlet pipe is arranged at the bottom of the column, and the molecular sieve filler is filled in the column.
[0012] By adopting the above technical scheme, the isopropyl alcohol after multiple distillations enters the column through the inlet pipe, the molecular sieve filler helps to remove the residual water and the organic impurities that are difficult to remove by distillation in the isopropyl alcohol, and helps to further purify the isopropyl alcohol, thereby helping to further improve the purification effect of the isopropyl alcohol in the production and preparation process, and further helping to further improve the purity of the prepared isopropyl alcohol, and the isopropyl alcohol after further purification is discharged through the outlet pipe, thereby completing the preparation of the isopropyl alcohol.
[0013] In one specific implementation scheme, the constant temperature assembly comprises a constant temperature box, a temperature sensor, a circulating hot air fan, an air inlet pipeline and an air outlet pipeline, the constant temperature box is sleeved on the periphery of the column, the temperature sensor is arranged in the constant temperature box, the circulating hot air fan is arranged on the mounting base and is electrically connected with the temperature sensor, the air inlet pipeline and the air outlet pipeline are connected with the circulating hot air fan, and one end of the air inlet pipeline and the air outlet pipeline away from the circulating hot air fan is connected with the constant temperature box.
[0014] By adopting the above technical scheme, the temperature sensor is used to help monitor the temperature inside the thermostat box body in real time; when the temperature inside the thermostat box body does not meet the set working temperature, the circulating air blower cooperates with the air inlet pipeline and the air outlet pipeline to help adjust the temperature inside the thermostat box body, thereby helping to maintain the purification assembly at the set working temperature, and further helping to ensure the use effect of the purification assembly.
[0015] In a specific implementable scheme, the condensing assembly includes a condensing box body, a condensing pipe, a liquid inlet pipe, and a liquid outlet pipe, the condensing box body is arranged on the mounting rack, the liquid inlet pipe is arranged at the top of the condensing box body, the liquid outlet pipe is arranged at the bottom of the condensing box body, the condensing pipe is arranged in the condensing box body, and both ends of the condensing pipe extend out of the condensing box body, one end of the condensing pipe is connected with the discharge pipe of one group of distillation and purification mechanisms, and the other end of the condensing pipe is connected with the feed pipe of another group of distillation and purification mechanisms.
[0016] By adopting the above technical scheme, the condensing pipe is used to help transport the isopropyl alcohol vapor generated by distillation, the liquid inlet pipe and the liquid outlet pipe are used to help the cooling water flow through the condensing box body, thereby helping to cool the condensing pipe, and further helping to cool and convert the vapor transported in the condensing pipe into liquid.
[0017] In a specific implementable scheme, the heating assembly includes a heating box body and a heater, the heating box body is arranged on the mounting base and sleeved on the outer periphery of the bottom of the distillation column, a heating cavity is arranged in the heating box body, the heating cavity is filled with a heating medium, and the heater is arranged in the heating cavity and used to heat the heating medium.
[0018] By adopting the above technical scheme, the heater is used to heat the heating medium in the heating cavity, thereby helping to heat the inside of the distillation column through the heating medium, and further helping to convert the isopropyl alcohol in the distillation column into vapor by heating.
[0019] In a specific implementable scheme, a heat preservation layer is arranged on the cavity wall of the heating cavity away from the distillation column, and the heat preservation layer is used to reduce heat loss in the heating cavity.
[0020] By adopting the above technical scheme, the heat preservation layer is used to help reduce heat loss of the heating medium in the heating cavity, thereby helping to improve the heating effect of the heating medium on the inside of the distillation column.
[0021] In a specific implementable scheme, an electromagnetic valve is arranged at one end of the feed pipe close to the distillation column, and the electromagnetic valve is used to block the vapor in the distillation column from flowing out of the feed pipe.
[0022] By adopting the technical scheme, the electromagnetic valve helps to block the steam in the distillation column from flowing out of the feed pipe, thereby helping to improve the accuracy of the steam conveying path.
[0023] In summary, the present application has at least one of the following beneficial technical effects:
[0024] 1. The present application is provided with multiple sets of distillation purification mechanisms, which help to distill isopropyl alcohol multiple times, thereby improving the purification effect of isopropyl alcohol in the production process, and further improving the purity of the prepared isopropyl alcohol.
[0025] 2. The present application is provided with an adsorption purification mechanism, which helps to remove residual water and organic impurities that are difficult to remove by distillation in isopropyl alcohol, and further purifies isopropyl alcohol, thereby further improving the purification effect of isopropyl alcohol in the production process, and further improving the purity of the prepared isopropyl alcohol. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.
[0027] Figure 2 is a schematic diagram of the specific structure of the heating assembly.
[0028] Figure 3 is a schematic diagram of the specific structure of the condensing assembly.
[0029] Figure 4 is a schematic diagram of the specific structure of the purification assembly and the constant temperature assembly.
[0030] BRIEF DESCRIPTION OF DRAWINGS: 1, mounting base; 2, mounting frame; 3, distillation column; 4, feed pipe; 5, heating assembly; 51, heating box; 511, heating cavity; 52, heater; 6, discharge pipe; 7, condensing assembly; 71, condensing box; 72, condensing pipe; 73, liquid inlet pipe; 74, liquid outlet pipe; 8, fixing frame; 9, purification assembly; 91, column body; 92, molecular sieve filler; 93, inlet pipe; 94, outlet pipe; 10, constant temperature assembly; 101, constant temperature box; 102, temperature sensor; 103, circulating air blower; 104, air inlet pipe; 105, air outlet pipe; 11, heat preservation layer; 12, electromagnetic valve. DETAILED DESCRIPTION
[0031] The present application will be further described in detail below with reference to the accompanying drawings.
[0032] The embodiment of the present application discloses a high-purity isopropyl alcohol preparation equipment, which is provided with a distillation column, a heating assembly, a condensing assembly, a purification assembly, a constant temperature assembly, and an electromagnetic valve. Figure 1 and Figure 2, including the installation base 1, the top surface of the installation base 1 is fixed with the mounting bracket 2, the mounting bracket 2 is provided with three groups of distillation purification mechanisms connected in sequence, each group of distillation purification mechanisms comprises a distillation column 3, the distillation column 3 is fixedly installed on the mounting bracket 2, the side wall of the distillation column 3 is fixedly installed with a feed pipe 4, the end of the feed pipe 4 close to the distillation column 3 is fixedly installed with a solenoid valve 12, and the top of the distillation column 3 is fixedly communicated with a discharge pipe 6.
[0033] Referring to Figure 1 and Figure 2 , each group of distillation purification mechanisms further comprises a heating assembly 5, the heating assembly 5 comprises a heating box body 51 and a heater 52, the heating box body 51 is fixedly installed on the top surface of the installation base 1, and the heating box body 51 is sleeved on the bottom periphery of the distillation column 3, the inside of the heating box body 51 has a heating cavity 511, the inside of the heating cavity 511 is filled with a heating medium, and the heater 52 is fixedly installed in the inside of the heating cavity 511. The cavity wall of the heating cavity 511 away from the distillation column 3 is paved with a heat preservation layer 11.
[0034] Referring to Figure 1 and Figure 2 , in the preparation of high-purity isopropyl alcohol, the isopropyl alcohol stock solution and the buffer solution are transported into the distillation column 3 through the feed pipe 4, and at the same time, the heater 52 is powered on to operate, so that the heating medium in the heating cavity 511 is heated to 60 degrees through the heater 52, and then the isopropyl alcohol stock solution and the buffer solution in the distillation column 3 are heated and treated through the heating medium. The heat preservation layer 11 helps to reduce the heat loss of the heating medium in the heating cavity 511, thereby helping to improve the heating effect of the heating medium on the inside of the distillation column 3.
[0035] Referring to Figure 1 and Figure 3 , each group of distillation purification mechanisms further comprises a condensation assembly 7, the condensation assembly 7 comprises a condensation box body 71, a condensation pipe 72, a liquid inlet pipe 73 and a liquid outlet pipe 74, the condensation box body 71 is fixedly installed on the top surface of the mounting bracket 2, the condensation pipe 72 is spirally arranged and fixedly installed in the inside of the condensation box body 71, the top end and the bottom end of the condensation pipe 72 both extend out of the condensation box body 71, the top end of the condensation pipe 72 is fixedly communicated with the discharge pipe 6 of the previous group of distillation purification mechanisms, and the bottom end of the condensation pipe 72 is fixedly communicated with the feed pipe 4 of the next group of distillation purification mechanisms.
[0036] Referring to Figure 1 and Figure 3, the isopropanol crude liquid and the buffer solution inside the distillation tower 3 are partially converted into steam after being heated, the steam rises and is transported into the condensing pipe 72 through the discharge pipe 6, and the cooling water flows into the condensing box 71 through the inlet pipe 73 and flows out from the outlet pipe 74, during the flow of the cooling water, the cooling water contacts the surface of the condensing pipe 72, thereby helping to cool the condensing pipe 72, and further helping to cool and convert the steam transported in the condensing pipe 72 into liquid, helping to complete the condensation of the steam, and making the condensed liquid flow into the next distillation tower 3 through the feed pipe 4, and completing the multiple distillation purification of the isopropanol crude liquid.
[0037] With reference to Figure 1 and Figure 4 , the mounting base 1 is further provided with an adsorption purification mechanism, the adsorption purification mechanism comprises a fixing frame 8, the fixing frame 8 is provided with a purification assembly 9, the purification assembly 9 comprises a column body 91, a molecular sieve filler 92, an inlet pipe 93 and an outlet pipe 94, the column body 91 is fixedly placed on the fixing frame 8, the inlet pipe 93 is fixedly installed at the top of the column body 91 and communicates with the inside of the column body 91, the outlet pipe 94 is fixedly installed at the bottom of the column body 91 and communicates with the inside of the column body 91, and the molecular sieve filler 92 is filled and placed inside the column body 91.
[0038] With reference to Figure 1 and Figure 4 , the isopropanol after multiple distillation enters the inside of the column body 91 through the inlet pipe 93, when the isopropanol flows through the molecular sieve filler 92, the molecular sieve filler 92 helps to remove the residual water in the isopropanol and the organic impurities that are difficult to remove by distillation, and helps to further purify the isopropanol, thereby further improving the purification effect of the isopropanol in the production process, and further improving the purity of the prepared isopropanol, and the isopropanol after further purification is discharged through the outlet pipe 94, thereby completing the preparation of the isopropanol.
[0039] With reference to Figure 1 and Figure 4 , the fixing frame 8 is further provided with a constant temperature assembly 10, the constant temperature assembly 10 comprises a constant temperature box 101, a temperature sensor 102, a circulating hot air fan 103, an air inlet pipeline 104 and an air outlet pipeline 105, the constant temperature box 101 is fixedly installed on the fixing frame 8 and is sleeved around the peripheral of the column body 91, the temperature sensor 102 is arranged in the constant temperature box 101, the circulating hot air fan 103 is arranged on the mounting base 1 and is electrically connected with the temperature sensor 102, the air inlet pipeline 104 and the air outlet pipeline 105 are connected with the circulating hot air fan 103, and the ends of the air inlet pipeline 104 and the air outlet pipeline 105 away from the circulating hot air fan 103 are connected with the constant temperature box 101.
[0040] With reference to Figure 1 and Figure 4When the isopropyl alcohol flows through the inside of the column 91, the temperature inside the column 91 is adjusted by the thermostat box 101. The operator monitors the temperature inside the thermostat box 101 in real time through the temperature sensor 102; when the temperature inside the thermostat box 101 does not meet the set working temperature, the circulating air blower 103 is started to cooperate with the air inlet pipeline 104 and the air outlet pipeline 105 to adjust the internal temperature of the thermostat box 101, so as to help maintain the internal temperature of the column 91 at the set working temperature, thereby helping to ensure the removal effect of the molecular sieve filler 92 on the residual water in the isopropyl alcohol and the organic impurities that are difficult to remove by distillation.
[0041] The implementation principle of the embodiment of the present application is that when preparing high-purity isopropyl alcohol, the isopropyl alcohol stock solution and the buffer solution are delivered into the distillation column 3 through the feed pipe 4, and at the same time, the heater 52 is powered to operate, so that the heating medium in the heating cavity 511 is heated to 60 degrees by the heater 52, and then the isopropyl alcohol stock solution and the buffer solution inside the distillation column 3 are heated by the heating medium.
[0042] The isopropyl alcohol stock solution and the buffer solution inside the distillation column 3 are partially converted into steam after being heated, the steam rises and is delivered into the condensing pipe 72 through the discharge pipe 6, and at the same time, the cooling water flows into the condensing box 71 inside through the liquid inlet pipe 73 and flows out from the liquid outlet pipe 74. In the flow process of the cooling water, the cooling water contacts the surface of the condensing pipe 72, so as to help cool the condensing pipe 72, thereby helping to cool and convert the steam delivered in the condensing pipe 72 into liquid, helping to complete the condensation treatment of the steam, and making the condensed liquid flow into the next distillation column 3 through the feed pipe 4, to complete the multiple distillation purification of the isopropyl alcohol stock solution.
[0043] The isopropyl alcohol after multiple distillation enters the inside of the column 91 through the inlet pipe 93, and when the isopropyl alcohol flows through the molecular sieve filler 92, the molecular sieve filler 92 helps to remove the residual water in the isopropyl alcohol and the organic impurities that are difficult to remove by distillation, and helps to further purify the isopropyl alcohol, thereby helping to further improve the purification effect of the isopropyl alcohol in the production and preparation process, and further improving the purity of the prepared isopropyl alcohol. The isopropyl alcohol after further purification is discharged through the outlet pipe 94, thereby completing the preparation of the isopropyl alcohol.
[0044] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A high purity isopropanol production apparatus, characterized by: The application relates to a distillation and purification device for isopropyl alcohol, which comprises a mounting base (1) provided with mounting racks (2), a plurality of groups of distillation and purification mechanisms connected in sequence, a distillation tower (3) provided on the mounting rack (2), a feeding pipe (4) provided on the distillation tower (3), a heating assembly (5) provided on the bottom of the distillation tower (3) and arranged on the mounting base (1), a discharging pipe (6) provided on the top of the distillation tower (3), a condensing assembly (7) provided on the end of the discharging pipe (6) away from the distillation tower (3) and connected with the feeding pipe (4) of the next group of distillation and purification mechanisms, and an adsorption and purification mechanism provided on the mounting base (1) and used for further purifying isopropyl alcohol after multiple distillations.
2. The high purity isopropanol production apparatus according to claim 1, characterized by: The adsorption and purification mechanism comprises a fixing rack (8) provided with a purification assembly (9) and a constant-temperature assembly (10), the purification assembly (9) is used for further purifying isopropyl alcohol after multiple distillations, and the constant-temperature assembly (10) is used for maintaining the purification assembly (9) at a set working temperature.
3. A high purity isopropanol production apparatus according to claim 2, characterized in that: The purification assembly (9) comprises a column body (91), molecular sieve fillers (92), an inlet pipe (93) and an outlet pipe (94), the column body (91) is arranged on the fixing rack (8), the inlet pipe (93) is arranged on the top of the column body (91), the outlet pipe (94) is arranged on the bottom of the column body (91), and the molecular sieve fillers (92) are filled in the column body (91).
4. The high purity isopropanol production apparatus of claim 3, wherein: The constant-temperature assembly (10) comprises a constant-temperature box body (101), a temperature sensor (102), a circulating hot air fan (103), an air inlet pipeline (104) and an air outlet pipeline (105), the constant-temperature box body (101) is arranged on the periphery of the column body (91), the temperature sensor (102) is arranged in the constant-temperature box body (101), the circulating hot air fan (103) is arranged on the mounting base (1) and electrically connected with the temperature sensor (102), the air inlet pipeline (104) and the air outlet pipeline (105) are connected with the circulating hot air fan (103), and the ends of the air inlet pipeline (104) and the air outlet pipeline (105) away from the circulating hot air fan (103) are connected with the constant-temperature box body (101).
5. The high purity isopropanol production apparatus of claim 1, wherein: The condensing assembly (7) comprises a condensing box (71), a condensing pipe (72), a liquid inlet pipe (73) and a liquid outlet pipe (74), the condensing box (71) is arranged on the mounting rack (2), the liquid inlet pipe (73) is arranged at the top of the condensing box (71), the liquid outlet pipe (74) is arranged at the bottom of the condensing box (71), the condensing pipe (72) is arranged in the condensing box (71), and both ends of the condensing pipe (72) extend out of the condensing box (71), one end of the condensing pipe (72) is connected with the discharge pipe (6) of a group of distillation and purification mechanisms, and the other end of the condensing pipe (72) is connected with the feed pipe (4) of another group of distillation and purification mechanisms.
6. The high purity isopropanol production apparatus of claim 1, wherein: The heating assembly (5) comprises a heating box (51) and a heater (52), the heating box (51) is arranged on the mounting base (1) and is sleeved on the bottom periphery of the distillation column (3), a heating cavity (511) is arranged in the heating box (51), the heating cavity (511) is filled with a heating medium, and the heater (52) is arranged in the heating cavity (511) and is used for heating the heating medium.
7. A high purity isopropanol production apparatus according to claim 6, characterized in that: A heat preservation layer (11) is arranged on the cavity wall of the heating cavity (511) away from the distillation column (3), and the heat preservation layer (11) is used for reducing heat loss in the heating cavity (511).
8. The high purity isopropanol production apparatus of claim 1, wherein: An electromagnetic valve (12) is arranged on one end of the feed pipe (4) close to the distillation column (3), and the electromagnetic valve (12) is used for blocking the steam in the distillation column (3) from flowing out of the feed pipe (4).