Purification and regeneration method of wax
By mixing the wax residue with distilled water and sodium hydroxide, and adding small molecule compounds to form a pectin-like substance. After washing, drying and purification treatment, pure wax is finally obtained, which solves the equipment, process, cost and other limitations of the existing wax purification and regeneration methods, and achieves efficient and environmentally friendly wax purification and regeneration.
Patent Information
- Application Number
- CN202311560747.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-21
- Publication Date
- 2025-05-23
AI Technical Summary
The existing wax purification and regeneration methods are limited by equipment, processes, costs, etc., making it difficult to achieve simple, economical, efficient and effective wax purification and regeneration.
The wax residue was mixed with distilled water and sodium hydroxide, stirring, and added small molecule compound to form a pectin-like substance, and was washed, dried and mixed with methanol to obtain a pure wax by purification.
It realizes simple, economical, efficient and effective purification and regeneration of wax, improves the utilization rate of wax, and complies with environmental protection standards.
Smart Images
Figure CN120025850A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of wax recovery, and in particular to a wax purification and regeneration method. Background Art
[0002] Wax is a common organic compound that is widely used in industries and production processes in different fields, such as candle manufacturing, pharmaceuticals, food packaging and paint production. However, the production and use of wax will generate a lot of waste, including wax residues. Most of these wastes are directly disposed of or converted into other compounds. If the wax residues in these wastes can be effectively purified and regenerated, the utilization rate of wax and the environmental benefits can be greatly improved.
[0003] At present, the purification and regeneration methods of wax mainly include the following: 1) Vapor pressure drop analysis method: using the principle of vapor pressure difference analysis, the temperature of the impure wax is raised to a temperature above the wax to volatilize the impurities, thereby improving the purity of the wax; 2) Molecular sieve adsorption method: using specific molecular sieves to adsorb wax impurities, and then eluting with other solvents to obtain wax with higher purity; 3) Diffusion method: using the diffusion principle, the wax impurities are directly diffused through the solid to obtain wax with higher purity.
[0004] However, the above wax purification and regeneration method still has some inherent problems, such as limitations in equipment, process, cost, etc. Therefore, a simpler, more economical, efficient and effective wax purification and regeneration method is needed. Summary of the invention
[0005] The purpose of the embodiments of the present invention is to provide a wax purification and regeneration method, which can purify and regenerate wax simply, economically, efficiently and effectively, obtain purer wax from wax residues, thereby improving the utilization rate of wax and meeting environmental protection standards.
[0006] In order to achieve the above object, an embodiment of the present invention provides a wax purification and regeneration method, comprising:
[0007] The wax residue is mixed with a preset amount of distilled water and a preset amount of sodium hydroxide, and stirred to obtain a first mixed solution, and a supernatant is obtained according to the first mixed solution;
[0008] adding a preset dose of a small molecule compound to the supernatant and stirring the mixture to obtain a second mixed solution, and obtaining a pectin-like substance according to the second mixed solution;
[0009] washing and drying the pectin-like substance;
[0010] The dried pectin-like substance is mixed with a preset amount of methanol, and stirred to obtain a third mixed liquid, and a wax raw material is obtained according to the third mixed liquid;
[0011] The wax raw material is purified to obtain pure wax.
[0012] Further, obtaining a supernatant according to the first mixed solution specifically includes:
[0013] The first mixed solution was placed at a temperature of 45° C. to react for 60 minutes, so that the precipitate and the supernatant in the first mixed solution were separated, and the supernatant was obtained.
[0014] Furthermore, the small molecule compound is boric acid or sodium tetraborate.
[0015] Furthermore, the stirring time of the second mixed liquid is 5 minutes.
[0016] Furthermore, obtaining the pectin-like substance according to the second mixed liquid specifically comprises:
[0017] The second mixed liquid is cooled to room temperature so that the pectin-like substance in the second mixed liquid is naturally precipitated, and the pectin-like substance is obtained by filtering.
[0018] Furthermore, the washing and drying of the pectin-like substance specifically includes:
[0019] Washing the pectin-like substance with distilled water;
[0020] The washed pectin-like substance is placed in a vacuum dryer for drying.
[0021] Further, the step of obtaining the wax raw material according to the third mixed liquid specifically includes:
[0022] The third mixed solution was placed in a water bath at 50° C. to react for 30 minutes, and the pectin-like substance in the third mixed solution was taken out and dried naturally to obtain a wax raw material.
[0023] Furthermore, the wax raw material is purified to obtain pure wax, specifically comprising:
[0024] The wax raw material is purified by using an extract of petroleum ether to obtain pure wax.
[0025] Compared with the prior art, the embodiment of the present invention provides a wax purification and regeneration method, first, the wax residue is mixed with a preset dose of distilled water and a preset dose of sodium hydroxide, and stirred to obtain a first mixed solution, and a supernatant is obtained according to the first mixed solution; then, a preset dose of a small molecule compound is added to the supernatant, and stirred to obtain a second mixed solution, and a pectin-like substance is obtained according to the second mixed solution; then, the pectin-like substance is washed and dried; then, the dried pectin-like substance is mixed with a preset dose of methanol, and stirred to obtain a third mixed solution, and a wax raw material is obtained according to the third mixed solution; finally, the wax raw material is purified to obtain pure wax. The embodiment of the present invention can purify and regenerate wax simply, economically, efficiently, and effectively, and obtain purer wax from the wax residue, thereby improving the utilization rate of the wax, and meeting environmental protection standards. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 The present invention is a flowchart of a preferred embodiment of a wax purification and regeneration method provided by the present invention. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the present invention.
[0028] The embodiment of the present invention provides a wax purification and regeneration method, see Figure 1 FIG. 1 is a flow chart of a preferred embodiment of a wax purification and regeneration method provided by the present invention, wherein the method comprises steps S11 to S15:
[0029] Step S11, mixing the wax residue with a preset amount of distilled water and a preset amount of sodium hydroxide, and stirring to obtain a first mixed solution, and obtaining a supernatant according to the first mixed solution;
[0030] Step S12, adding a preset dose of a small molecule compound to the supernatant, and stirring to obtain a second mixed solution, and obtaining a pectin-like substance according to the second mixed solution;
[0031] Step S13, washing and drying the pectin-like substance;
[0032] Step S14, mixing the dried pectin-like substance with a preset dose of methanol, and stirring to obtain a third mixed liquid, and obtaining a wax raw material according to the third mixed liquid;
[0033] Step S15, purifying the wax raw material to obtain pure wax.
[0034] In the specific implementation of this embodiment, first, the wax residue is mixed with a preset dose of distilled water, and then a preset dose of sodium hydroxide (NaOH) is added and stirred at high speed to obtain a first mixed liquid, and a supernatant is obtained from the first mixed liquid; then, a preset dose of a micro-molecule compound is added to the obtained supernatant, and stirred at high speed to obtain a second mixed liquid, and a pectin-like substance is obtained from the second mixed liquid; then, the obtained pectin-like substance is washed and dried; then, the dried pectin-like substance is mixed with a preset dose of methanol, and stirred at high speed to make it uniform, to obtain a third mixed liquid, and a wax raw material is obtained from the third mixed liquid; finally, the obtained wax raw material is purified to obtain pure wax, that is, a pure wax finished product.
[0035] It should be noted that the dosages of distilled water, sodium hydroxide, small molecule compounds and methanol used in the embodiments of the present invention can be selected according to actual needs and are not specifically limited in the embodiments of the present invention.
[0036] In one optional embodiment, obtaining a supernatant according to the first mixed solution specifically includes:
[0037] The first mixed solution was placed at a temperature of 45° C. to react for 60 minutes, so that the precipitate and the supernatant in the first mixed solution were separated, and the supernatant was obtained.
[0038] Specifically, in combination with the above embodiment, when obtaining the supernatant according to the first mixed liquid, the first mixed liquid can be placed at a temperature of 45°C to react for 60 minutes. After the precipitate and the supernatant in the first mixed liquid are separated, the supernatant in the first mixed liquid can be obtained.
[0039] In combination with the above embodiments, when the present embodiment is implemented, first, the wax residue is mixed with a preset dose of distilled water, and then a preset dose of sodium hydroxide (NaOH) is added and stirred at high speed to obtain a first mixed solution. The first mixed solution is placed at a temperature of 45°C to react for 60 minutes. After the precipitate and the supernatant in the first mixed solution are separated, the supernatant in the first mixed solution is obtained; then, a preset dose of a micro-molecule compound is added to the obtained supernatant, and the mixture is stirred at high speed to obtain a second mixed solution, and a pectin-like substance is obtained from the second mixed solution; then, the obtained pectin-like substance is washed and dried; then, the dried pectin-like substance is mixed with a preset dose of methanol, and stirred at high speed to make it uniform, to obtain a third mixed solution, and a wax raw material is obtained from the third mixed solution; finally, the obtained wax raw material is purified to obtain pure wax.
[0040] In one optional embodiment, the small molecule compound is boric acid or sodium tetraborate.
[0041] Specifically, in combination with the above embodiment, the micromolecule compound added to the supernatant can be boric acid (H 3 BO 3 ) or sodium tetraborate (Na 2 B 4 O 7 ), or other small molecule compounds, which are not specifically limited in the embodiments of the present invention.
[0042] In combination with the above embodiment, in the specific implementation of this embodiment, first, the wax residue is mixed with a preset amount of distilled water, and then a preset amount of sodium hydroxide (NaOH) is added, and high-speed stirring is performed to obtain a first mixed solution, and a supernatant is obtained from the first mixed solution; then, a preset amount of boric acid (H 3 BO 3 ) or sodium tetraborate (Na 2 B 4 O 7 ), stirring at high speed to obtain a second mixed liquid, and obtaining a pectin-like substance from the second mixed liquid; then, washing and drying the obtained pectin-like substance; then, mixing the dried pectin-like substance with a preset dose of methanol, stirring at high speed to make it uniform, and obtaining a third mixed liquid, and obtaining a wax raw material from the third mixed liquid; finally, purifying the obtained wax raw material to obtain pure wax.
[0043] In one optional embodiment, the stirring time of the second mixed liquid is 5 minutes.
[0044] Specifically, in combination with the above embodiment, after adding a preset dose of the small molecule compound to the supernatant, stirring at high speed for 5 minutes can obtain the second mixed solution.
[0045] In combination with the above embodiment, in the specific implementation of this embodiment, first, the wax residue is mixed with a preset amount of distilled water, and then a preset amount of sodium hydroxide (NaOH) is added, and high-speed stirring is performed to obtain a first mixed solution, and a supernatant is obtained from the first mixed solution; then, a preset amount of boric acid (H 3 BO 3 ) or sodium tetraborate (Na 2 B 4 O 7), stirring at high speed for 5 minutes, and obtaining a second mixed liquid accordingly, and obtaining a pectin-like substance from the second mixed liquid; then, washing and drying the obtained pectin-like substance; then, mixing the dried pectin-like substance with a preset dose of methanol, stirring at high speed to make it uniform, and obtaining a third mixed liquid accordingly, and obtaining a wax raw material from the third mixed liquid; finally, purifying the obtained wax raw material, and obtaining pure wax accordingly.
[0046] In one optional embodiment, obtaining a pectin-like substance according to the second mixed liquid specifically comprises:
[0047] The second mixed liquid is cooled to room temperature so that the pectin-like substance in the second mixed liquid is naturally precipitated, and the pectin-like substance is obtained by filtering.
[0048] Specifically, in combination with the above embodiment, when obtaining the pectin-like substance according to the second mixed liquid, the second mixed liquid can be cooled. After the second mixed liquid is cooled to room temperature, the pectin-like substance in the second mixed liquid naturally precipitates, and then the pectin-like substance in the second mixed liquid can be obtained by filtering and fixing.
[0049] In combination with the above embodiment, in the specific implementation of this embodiment, first, the wax residue is mixed with a preset amount of distilled water, and then a preset amount of sodium hydroxide (NaOH) is added, and high-speed stirring is performed to obtain a first mixed solution, and a supernatant is obtained from the first mixed solution; then, a preset amount of boric acid (H 3 BO 3 ) or sodium tetraborate (Na 2 B 4 O 7 ), stirring at a high speed for 5 minutes, and accordingly obtaining a second mixed liquid; after the second mixed liquid is cooled to room temperature, the pectin-like substance in the second mixed liquid is naturally precipitated, and the pectin-like substance in the second mixed liquid is obtained by filtering and fixing; then, the obtained pectin-like substance is washed and dried; then, the dried pectin-like substance is mixed with a preset dose of methanol, and stirred at a high speed to make it uniform, and accordingly obtaining a third mixed liquid, and obtaining a wax raw material from the third mixed liquid; finally, the obtained wax raw material is purified to obtain pure wax.
[0050] In one optional embodiment, the washing and drying of the pectin-like substance specifically includes:
[0051] Washing the pectin-like substance with distilled water;
[0052] The washed pectin-like substance is placed in a vacuum dryer for drying.
[0053] Specifically, in combination with the above embodiment, when washing and drying the pectin-like substance, the pectin-like substance can be first washed with distilled water, and then the washed pectin-like substance is placed in a vacuum dryer for drying until the weight is constant.
[0054] In combination with the above embodiment, in the specific implementation of this embodiment, first, the wax residue is mixed with a preset amount of distilled water, and then a preset amount of sodium hydroxide (NaOH) is added, and high-speed stirring is performed to obtain a first mixed solution, and a supernatant is obtained from the first mixed solution; then, a preset amount of boric acid (H 3 BO 3 ) or sodium tetraborate (Na 2 B 4 O 7 ), stirring at high speed for 5 minutes, and obtaining a second mixed liquid accordingly; after the second mixed liquid is cooled to room temperature, the pectin-like substance in the second mixed liquid is naturally precipitated, and the pectin-like substance in the second mixed liquid is obtained by filtering and fixing; then, the obtained pectin-like substance is washed with distilled water, and the washed pectin-like substance is placed in a vacuum dryer and dried to a constant weight; then, the dried pectin-like substance is mixed with a preset dose of methanol, and stirred at high speed to make it uniform, and obtaining a third mixed liquid accordingly, and a wax raw material is obtained from the third mixed liquid; finally, the obtained wax raw material is purified to obtain pure wax accordingly.
[0055] In one optional embodiment, the step of obtaining the wax raw material according to the third mixed liquid specifically includes:
[0056] The third mixed solution was placed in a water bath at 50° C. to react for 30 minutes, and the pectin-like substance in the third mixed solution was taken out and dried naturally to obtain a wax raw material.
[0057] Specifically, in combination with the above embodiment, when obtaining the wax raw material according to the third mixed liquid, the third mixed liquid can be placed in a 50°C water bath to react for 30 minutes, and the pectin-like substance in the third mixed liquid is taken out and placed to dry naturally until a constant weight is reached, thereby obtaining the wax raw material accordingly.
[0058] In combination with the above embodiments, when the present embodiment is implemented, first, the wax residue is mixed with a preset dose of distilled water, and then a preset dose of sodium hydroxide (NaOH) is added and stirred at high speed to obtain a first mixed liquid, and a supernatant is obtained from the first mixed liquid; then, a preset dose of a micro-molecule compound is added to the obtained supernatant, and stirred at high speed to obtain a second mixed liquid, and a pectin-like substance is obtained from the second mixed liquid; then, the obtained pectin-like substance is washed and dried; then, the dried pectin-like substance is mixed with a preset dose of methanol, and stirred at high speed to make it uniform, to obtain a third mixed liquid, and the third mixed liquid is placed in a water bath at 50°C to react for 30 minutes, and the pectin-like substance in the third mixed liquid is taken out and placed to dry naturally until it reaches a constant weight, to obtain a wax raw material; finally, the obtained wax raw material is purified to obtain pure wax, that is, a pure wax product.
[0059] In one optional embodiment, the wax raw material is purified to obtain pure wax, specifically comprising:
[0060] The wax raw material is purified by using an extract of petroleum ether to obtain pure wax.
[0061] Specifically, in combination with the above embodiments, when purifying the wax raw material, the distillation extract of petroleum ether can be used to purify the wax raw material to obtain pure wax accordingly.
[0062] In combination with the above embodiments, when the present embodiment is implemented, first, the wax residue is mixed with a preset dose of distilled water, and then a preset dose of sodium hydroxide (NaOH) is added and stirred at high speed to obtain a first mixed liquid, and a supernatant is obtained from the first mixed liquid; then, a preset dose of a micro-molecule compound is added to the obtained supernatant, and stirred at high speed to obtain a second mixed liquid, and a pectin-like substance is obtained from the second mixed liquid; then, the obtained pectin-like substance is washed and dried; then, the dried pectin-like substance is mixed with a preset dose of methanol, and stirred at high speed to make it uniform, to obtain a third mixed liquid, and a wax raw material is obtained from the third mixed liquid; finally, the obtained wax raw material is purified using a distilled extract of petroleum ether to obtain pure wax.
[0063] In combination with all the above embodiments, the implementation process of the present solution is described below through a specific embodiment, comprising: (1) mixing a wax residue with a certain amount of distilled water, adding an appropriate amount of sodium hydroxide (NaOH), and stirring at a high speed to obtain a first mixed solution; placing the first mixed solution at a temperature of 45° C. for reaction for 60 minutes; after the precipitate and the supernatant in the first mixed solution are separated, obtaining a supernatant in the first mixed solution; (2) adding a certain amount of boric acid (H 3 BO 3 ) or sodium tetraborate (Na 2 B 4 O 7 ), stirring at high speed for 5 minutes, and obtaining a second mixed solution accordingly; after the second mixed solution is cooled to room temperature, the pectin-like substance in the second mixed solution is naturally precipitated, and the pectin-like substance in the second mixed solution is obtained by filtering and fixing; (3) washing the obtained pectin-like substance with distilled water, and placing the washed pectin-like substance in a vacuum dryer to dry to a constant weight; (4) mixing the dried pectin-like substance with a small amount of methanol, stirring at high speed to make it uniform, and obtaining a third mixed solution accordingly; placing the third mixed solution in a water bath at 50°C to react for 30 minutes, and taking out the pectin-like substance in the third mixed solution, and placing it to dry naturally until a constant weight is obtained, and obtaining a wax raw material accordingly; (5) purifying the obtained wax raw material using a distilled extract of petroleum ether, and obtaining a pure wax product accordingly.
[0064] It should be noted that the embodiments of the present invention can be applied to the purification and regeneration of various types of waxes, such as paraffin, beeswax, wax esters, etc., and in the wax purification and regeneration process, the reagents used are also widely available and low-cost.
[0065] In summary, a wax purification and regeneration method provided by an embodiment of the present invention comprises the following steps: first, wax residue is mixed with a preset dose of distilled water and a preset dose of sodium hydroxide, and stirred to obtain a first mixed solution, and a supernatant is obtained according to the first mixed solution; then, a preset dose of a small molecule compound is added to the supernatant, and stirred to obtain a second mixed solution, and a pectin-like substance is obtained according to the second mixed solution; then, the pectin-like substance is washed and dried; then, the dried pectin-like substance is mixed with a preset dose of methanol, and stirred to obtain a third mixed solution, and a wax raw material is obtained according to the third mixed solution; finally, the wax raw material is purified to obtain pure wax. The embodiment of the present invention can purify and regenerate wax simply, economically, efficiently, and effectively, and obtain purer wax from wax residues, thereby improving the utilization rate of the wax and meeting environmental protection standards.
[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A wax purification and regeneration method, It is characterized in that include: The wax residue is mixed with a preset amount of distilled water and a preset amount of sodium hydroxide, and stirred to obtain a first mixed solution, and a supernatant is obtained according to the first mixed solution; adding a preset dose of a small molecule compound to the supernatant and stirring the mixture to obtain a second mixed solution, and obtaining a pectin-like substance according to the second mixed solution; washing and drying the pectin-like substance; The dried pectin-like substance is mixed with a preset amount of methanol, and stirred to obtain a third mixed liquid, and a wax raw material is obtained according to the third mixed liquid; The wax raw material is purified to obtain pure wax.
2. The wax purification and regeneration method according to claim 1, It is characterized in that The step of obtaining a supernatant according to the first mixed solution specifically comprises: The first mixed solution was placed at a temperature of 45° C. to react for 60 minutes, so that the precipitate and the supernatant in the first mixed solution were separated, and the supernatant was obtained.
3. The wax purification and regeneration method according to claim 1, It is characterized in that The small molecule compound is boric acid or sodium tetraborate.
4. The wax purification and regeneration method according to claim 1, It is characterized in that The stirring time of the second mixed solution is 5 min.
5. The wax purification and regeneration method according to claim 1, It is characterized in that The step of obtaining a pectin-like substance according to the second mixed liquid specifically comprises: The second mixed liquid is cooled to room temperature so that the pectin-like substance in the second mixed liquid is naturally precipitated, and the pectin-like substance is obtained by filtering.
6. The wax purification and regeneration method according to claim 1, It is characterized in that The washing and drying of the pectin-like substance specifically comprises: Washing the pectin-like substance with distilled water; The washed pectin-like substance is placed in a vacuum dryer for drying.
7. The wax purification and regeneration method according to claim 1, It is characterized in that The step of obtaining the wax raw material according to the third mixed liquid specifically comprises: The third mixed solution was placed in a water bath at 50° C. to react for 30 minutes, and the pectin-like substance in the third mixed solution was taken out and dried naturally to obtain a wax raw material.
8. The wax purification and regeneration method according to claim 1, It is characterized in that The purifying treatment of the wax raw material to obtain pure wax specifically includes: The wax raw material is purified by using an extract of petroleum ether to obtain pure wax.