Esterification of a deodorized fatty acid

A fatty acid and deodorization technology, which is applied in the field of fatty acid esterification, can solve problems such as difficulty in extracting vitamins and phytosterols, incomplete fatty acid esterification, and unclean water separation, achieving easy separation, thorough esterification, and low difficulty Effect

Active Publication Date: 2016-08-24
ZHANGZHOU JINFUSHUN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem caused by this is that the water is often not separated cleanly, and the esterification process also produces water, resulting in incomplete fatty acid esterification. It is very difficult to extract vitamins and phytosterols by short-path distillation, and multi-stage short-path distillation is required. In order to achieve the separation effect; energy consumption, the efficiency is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A: Pretreatment: Take 500 grams of leftovers and heat to 80°C; B: Then let it stand for 3 hours, divide the water, and take the lower oil; C: Take 100 grams of the lower oil, add 600 grams of methanol, 3 grams of concentrated sulfuric acid, 70 grams of trimethyl orthoformate, heated to reflux for 6 hours, followed by GC, the fatty acid conversion rate was 99%.

Embodiment 2

[0011] A: Pretreatment: Take 500 grams of leftovers and heat to 80°C; B: Then let it stand for 3 hours, divide the water, and take the lower oil; C: Take 100 grams of the lower oil, add 400 grams of methanol, 2 grams of concentrated sulfuric acid, 10 grams of trimethyl orthoformate, heated to reflux for 5 hours, followed by GC, the fatty acid conversion rate was 98.3%.

Embodiment 3

[0013] A: Pretreatment: Take 500 grams of leftovers and heat to 80°C; B: Then let it stand for 3 hours, divide the water, and take the lower oil; C: Take 100 grams of the lower oil, add 500 grams of methanol, 2.5 grams of concentrated sulfuric acid, 8 grams of trimethyl orthoformate, heated to reflux for 7 hours, followed by GC, the fatty acid conversion rate was 99.5%.

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PUM

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Abstract

The invention provides esterification of deodorized fatty acid. The invention is characterized by including the steps of: A. heating the leftover from production of edible oil containing deodorized fatty acid; B. conducting standing to separate water, and carrying out separation to take the lower layer oily matter; C. then adding a specified amount of trimethyl orthoformate, methanol, and a catalytic amount of concentrated sulfuric acid, performing heating to carry out reflux reaction till the complete esterification. The technology provided by the invention has the advantages of convenient operation, great possibility of industrialization, and complete esterification of fatty acid, so that the following extraction process of vitamin E and plant sterol not difficult and separation is easy.

Description

technical field [0001] The invention relates to an esterification method of fatty acid. Background technique [0002] The leftovers produced in the edible oil process produced by the oil factory contain a large amount of fatty acids, vitamin E, phytosterols and other substances; in order to extract vitamin E and phytosterols well, the leftovers are deodorized first, and then fatty acid Esterification, so that vitamins and phytosterols can be easily extracted in the next short-distance distillation process. The usual method of esterification in the industry is to heat the leftovers in the production of oils and fats containing a large amount of fatty acids, let them stand, separate water, and then catalyze with sulfuric acid. Esterification with methanol. The problem caused by this is that the water is often not separated cleanly, and the esterification process also produces water, resulting in incomplete fatty acid esterification. It is very difficult to extract vitamins an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C69/003C07C67/27
CPCC07C67/08C07C67/27C07C69/003
Inventor 张明福陈自伟
Owner ZHANGZHOU JINFUSHUN BIOTECH
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