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A kind of production technology of feed oil

A production process and feed oil technology, applied in animal feed, animal feed, fatty acid esterification, etc., can solve the problems of difficult separation and low yield, and achieve the effects of simple operation, energy saving and mild conditions

Inactive Publication Date: 2011-11-30
杨玉峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a production process of feed oil, which uses acidified oil and high acid value oil to prepare feed oil, and can overcome the problems of difficult separation and low yield in the prior art

Method used

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  • A kind of production technology of feed oil

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Experimental program
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Effect test

Embodiment 1

[0018] After removing impurities and degumming the high acid value oil with an acid value of 56 mg KOH / g, add 0.5% concentrated sulfuric acid (mass concentration 98%, the same below) of the high acid value oil quality as a catalyst, heat up to 100 ° C, and pass methanol steam Add the raw material solution until the acid value (in mgKOH / g, the same below) is less than 1, stop the methyl esterification reaction; wash with water to remove the catalyst, vacuum dehydration; add 1% sodium hydroxide and 8% of the high acid value oil quality Glycerol was reacted at 110°C until no methanol was produced; the glycerin and alkali were removed by washing with warm water, and vacuum dehydration; the finished feed oil was obtained by adsorption with activated clay and pressure filtration; the finished feed oil was yellow and transparent in appearance, and the yield was 95%. The acid value is 2 mg KOH / g, the moisture content is 0.1%, and the impurity content is <0.1%.

Embodiment 2

[0020] After removing impurities and degumming acidified oil with an acid value of 120 mg KOH / g, add concentrated sulfuric acid with an acidified oil mass of 0.6% as a catalyst, raise the temperature to 102°C, and pass methanol vapor into the raw material solution until the acid value is less than 1, stop the methyl ester reaction; wash with water to remove the catalyst, vacuum dehydration; add 0.8% potassium hydroxide and 9% glycerol to the acidified oil quality, and react at 120°C until no methanol is produced; wash with warm water to remove glycerin and alkali, and vacuum dehydration; use activated clay The product is obtained by adsorption and pressure filtration; the product oil is yellow and transparent in appearance, with a yield of 93%, an acid value of 2.3 mg KOH / g, a moisture content of 0.1%, and an impurity content of <0.1%.

Embodiment 3

[0022] Remove impurities and degumming acidified oil with an acid value of 130 mg KOH / g, add concentrated sulfuric acid with an acidified oil mass of 0.7% as a catalyst, raise the temperature to 105°C, and pass methanol vapor into the raw material solution until the acid value is less than 1, stop the methyl ester Chemical reaction; wash with water to remove the catalyst, vacuum dehydration; add 1.2% potassium hydroxide and 9% glycerol to the acidified oil quality, react at 130°C until no methanol is produced; wash with warm water to remove glycerin and alkali, vacuum dehydration; use activated clay The product is obtained by adsorption and pressure filtration; the product oil has a yellow and transparent appearance, a yield of 91%, an acid value of 3 mg KOH / g, a moisture content of 0.1%, and an impurity content of <0.1%.

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Abstract

The invention belongs to the field of feed oil preparation, in particular to a process for producing feed oil by using acidified oil and the like as raw materials. Using acidified oil, high acid value oil or crude fatty acid as raw material, after removing impurities and degumming the raw material, first carry out methyl esterification reaction to prepare fatty acid methyl ester, and then undergo transesterification reaction with glycerin under alkaline conditions to form glyceride, and then The above-mentioned feed oil can be obtained after processing. The method of the invention can be carried out under normal pressure and relatively low temperature, and has simple operation, mild conditions and energy saving; the yield is over 90%, and the product has light color.

Description

(1) Technical field [0001] The invention belongs to the field of feed oil preparation, in particular to a process for producing feed oil by using acidified oil and the like as raw materials. (2) Background technology [0002] Feed oil is the main component of animal feed. With the development of feed industry, feed oil has a broad market prospect. [0003] The chemical composition of the oil is fatty acid glycerides. Practice has proved that fatty acid glycerides with medium and high carbon chains are nutritional ingredients for humans and animals, while the main components of acidified oil are fatty acids, neutral oils (glycerides) and other impurities. Among them, the content of free fatty acid is high, and the acid value is generally 100-140mgKOH / g. The high content of fatty acid limits its direct use as feed oil. The first prior art is to neutralize the fatty acid in the acidified oil with an alkali, and then separate and remove the soap to obtain the glyceride. But th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/00C11C3/04C11C3/10
Inventor 杨玉峰韩春亮李永
Owner 杨玉峰
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