Cholesterol production process

A production process, cholesterol technology, applied in the direction of steroids, organic chemistry, etc., can solve problems such as complex process, low profit on production, shortage of raw materials, etc., and achieve the effect of overcoming scarcity, low production cost and short production route

Inactive Publication Date: 2021-01-19
刘跃云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the above two processes are: the shortage of raw materials, high prices resulting in low production profits, complex processes and long routes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A production process of cholesterol, specifically comprising the following steps:

[0017] 1) Put the animal fat into the reactor, heat the animal fat with steam, add a solvent and an acidic catalyst to it, and adjust the pH value to 2.8;

[0018] 2) Add liquid caustic soda into the reaction kettle, adjust the pH value to less than 10, react for 3 hours, shut down, neutralize, wash with water at 90°C, and then separate;

[0019] 3) stirring and cooling to crystallize;

[0020] 4) Use a centrifuge to separate solids and liquids;

[0021] 5) refining the crude product, dissolving the mixed solution at a ratio of 1:20, adding 3% activated carbon, refluxing and filtering with heat preservation;

[0022] 6) The liquid is stirred and crystallized;

[0023] 7) After filtering and drying at 70°C, cholesterol with a purity of 90%-97% and a melting point of 145-148°C is obtained.

Embodiment 2

[0025] A production process of cholesterol, specifically comprising the following steps:

[0026] 1) Put the animal fat into the reaction kettle, heat the animal fat with steam, then add solvent and acid catalyst to it, and adjust the pH value to 3;

[0027] 2) Add liquid caustic soda into the reaction kettle, adjust the pH value to less than 10, react for 3 hours, shut down, neutralize, wash with water at 90°C, and then separate;

[0028] 3) stirring and cooling to crystallize;

[0029] 4) Use a centrifuge to separate solids and liquids;

[0030] 5) refining the crude product, dissolving the mixed solution at a ratio of 1:20, adding 3% activated carbon, refluxing and filtering with heat preservation;

[0031] 6) The liquid is stirred and crystallized;

[0032] 7) After filtering and drying at 70°C, cholesterol with a purity of 90%-97% and a melting point of 145-148°C is obtained.

Embodiment 3

[0034] A production process of cholesterol, specifically comprising the following steps:

[0035] 1) Put the animal fat into the reaction kettle, heat the animal fat with steam, add a solvent and an acidic catalyst to it, and adjust the pH value to 3.2;

[0036] 2) Add liquid caustic soda into the reaction kettle, adjust the pH value to less than 10, react for 3 hours, shut down, neutralize, wash with water at 90°C, and then separate;

[0037] 3) stirring and cooling to crystallize;

[0038] 4) Use a centrifuge to separate solids and liquids;

[0039] 5) refining the crude product, dissolving the mixed solution at a ratio of 1:20, adding 3% activated carbon, refluxing and filtering with heat preservation;

[0040] 6) The liquid is stirred and crystallized;

[0041] 7) After filtering and drying at 70°C, cholesterol with a purity of 90%-97% and a melting point of 145-148°C is obtained.

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PUM

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Abstract

The present invention relates to a cholesterol production process, which comprises: 1) placing animal fat into a reaction kettle, carrying out steam heating on the animal fat, adding a solvent and anacid catalyst to the animal fat, and adjusting the pH value to 2.8-3.2; 2) adding liquid caustic soda into the reaction kettle, adjusting the pH value to be less than 10, reacting for 3 hours, stopping, neutralizing, washing with water at 90 DEG C, and then separating; 3) stirring, cooling and crystallizing; 4) separating solid from liquid by using a centrifugal machine; 5) refining the crude product, dissolving the mixed solution in a ratio of 1: 20, adding 3% of activated carbon, refluxing, keeping the temperature, and filtering; 6) stirring and crystallizing the liquid; and 7) filtering, and drying at 70 DEG C to obtain cholesterol with the purity of 90%-97% and the melting point of 145-148 DEG C. The invention has the advantages that the problem of scarcity of the raw materials is solved by changing the raw materials, and by adopting the process, the preparation route is short, the preparation cost is low, the quality after production is reliable, and the method has a good prospectin the field of cholesterol preparation.

Description

technical field [0001] The invention relates to a production process of cholesterol. Background technique [0002] There are mainly two kinds of existing production processes for cholesterol, one is wet brain, soaking, drying, crushing, extraction, concentration, hydrolysis, crystallization, filtration, solvent recovery, filter cake saponification, filtration, crystallization, decolorization, Cholesterol finished product, the other is lanolin primary saponification, secondary saponification, drop reaction, colloid separation, washing, distillation recovery, wool, hydrolysis, filtration, washing, refining, to obtain cholesterol product. The disadvantages of the above two processes are: the shortage of raw materials, the high price resulting in low profit on production, complex process and long route. Contents of the invention [0003] The object of the present invention is to provide a production process of cholesterol to solve the problems raised in the above-mentioned ba...

Claims

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Application Information

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IPC IPC(8): C07J9/00
CPCC07J9/00
Inventor 刘跃云
Owner 刘跃云
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