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Method for reproduction of fatty acid with molecular distillation distillate of unsaturated fatty acid

A technology of unsaturated fatty acid and molecular distillation, which is applied in the field of reuse of unsaturated fatty acid molecular distillation distillate, can solve the problems of inconvenience and waste of high unsaturated fatty acid, and achieve the effect of reducing production cost and saving raw material consumption

Active Publication Date: 2015-07-01
河北欣奇典生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the molecular distillation distillates of unsaturated fatty acids are treated as waste or used to produce soap, which wastes highly unsaturated fatty acids with nutritional value (for example: linolenic acid, linoleic acid, conjugated linoleic acid, etc. Including methyl ester, ethyl ester type)
[0004] This shows that in the existing processing to unsaturated fatty acid molecular distillation distillate, obviously still have inconvenience and defective, and urgently need to be further improved

Method used

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  • Method for reproduction of fatty acid with molecular distillation distillate of unsaturated fatty acid

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Pour 1000kg of free α-linolenic acid molecular distillation distillate into the reaction kettle, add 5kg of concentrated sulfuric acid at normal temperature and pressure, stir for 5 minutes to mix evenly, let stand for 60 minutes, and remove the carbonized sticky substance in the lower layer. Add saturated brine at 50°C under normal pressure, wash with water three times, detect that the distillate is neutral, and vacuum dehydrate under reduced pressure until the water content is 0.03%. Add 30kg activated clay, raise the temperature to 60°C, stir for 40 minutes, filter, decolorize, deodorize and purify by molecular distillation, and obtain α-linolenic acid product with a content of 81.8% and a yield of 84.3%.

Embodiment 2

[0032] Pour 1000kg of α-linolenic acid ethyl ester molecular distillation distillate into the reaction kettle, add 30kg of concentrated sulfuric acid at normal temperature and pressure, stir for 5 minutes to make the mixture even, let it stand for 50 minutes, and remove the carbonized sticky substance in the lower layer . Add saturated brine at 70°C under normal pressure, wash with water three times, detect that the distillate is neutral, and vacuum dehydrate under reduced pressure until the water content is 0.12%.

[0033] Add 150kg of activated clay, heat up to 80°C, stir for 60 minutes, and filter. Add 5kg of concentrated sulfuric acid and 1300kg of absolute ethanol to the distillate in the reactor, heat up to 80°C, reflux for 4 hours, cool down to 40°C, wash twice with 60°C saturated brine until neutral. Dehydration under reduced pressure to a moisture content of 0.15%. Through molecular distillation, the product α-linolenic acid ethyl ester was detected, the content was...

Embodiment 3

[0035] Pour 1000kg of α-methyl linolenic acid molecular distillation distillate into the reaction kettle, add 50kg of concentrated sulfuric acid at normal temperature and pressure, stir for 5 minutes to mix evenly, let stand for 45 minutes, and remove the carbonized sticky substance in the lower layer . Add saturated brine at 60°C under normal pressure, wash with water twice until neutral, and vacuum dehydrate under reduced pressure until the water content is 0.09%. Add 285kg activated clay, heat up to 80°C, stir for 60 minutes, and filter. Add 35kg of concentrated sulfuric acid and 4800kg of anhydrous methanol, heat up to 80°C, reflux for 4 hours, cool down to 30°C, wash twice with 50°C saturated brine until neutral, dehydrate under reduced pressure to 0.21% moisture, and process by molecular distillation , the detection product α-linolenic acid methyl ester, the content is 82.3%, and the yield is 70.6%.

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Abstract

This invention relates to a method for reproduction of fatty acid with a molecular distillation distillate of unsaturated fatty acid. The method comprises the steps of: reducing viscosity, mixing the distillate with concentrated sulfuric acid in a mass ratio of 1:0.005-0.05, stirring them for reaction under normal temperature for 5-30min, carrying out standing for 30-180min, discarding a carbide in the lower layer, and performing washing and dehydration; removing a peroxide, reducing pigment concentration, adding activated clay that is 0.03-0.3 times of the mass of the distillate, stirring them for 10-60min at a temperature of 50-100DEG C, then implementing filtration; and conducting molecular distillation. The method for reproduction of fatty acid with a molecular distillation distillate of unsaturated fatty acid provided in the invention can reproduce the molecular distillation distillate, and further reduce production cost, as well as improve production efficiency, thus overcoming the shortcomings in existing fatty acid extraction processes.

Description

technical field [0001] The invention relates to a method for reusing unsaturated fatty acid molecular distillation distillate, in particular to a method for reproducing fatty acid (methyl ester / ethyl ester) from unsaturated fatty acid molecular distillation distillate. Background technique [0002] Unsaturated fatty acids are insoluble in water, soluble in ethanol and ether, miscible with N, N-dimethylformamide, aliphatic solvents and oils, etc., have the effect of lowering cholesterol and blood lipids, and can prevent or reduce atherosclerosis Syndrome, oxidation stability in the air is stronger than oleic acid, and the side reaction is much lighter than oleic acid, and it can also be used as a raw material for Maitong. [0003] The extraction of unsaturated fatty acids is to use molecular distillation to achieve the purpose of decolorization, deodorization and purification. However, the degree of fatty acid unsaturation in the distillate from its molecular distillation is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/42C07C67/48C07C57/12C07C69/587
Inventor 王小锋
Owner 河北欣奇典生物科技有限公司