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A technical method for improving the fluidity of rapeseed oil feet

A rapeseed oil and fluidity technology, applied in the direction of oil/fat refining, fat production, etc., can solve the problems of restricting the comprehensive development and utilization of rapeseed oil feet, high viscosity of rapeseed oil feet, easy rancidity and smelly oil feet, etc. To achieve the effect of low cost, reduced viscosity and convenient use

Inactive Publication Date: 2018-04-03
防城港澳加粮油工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country is a big producer of rapeseed edible oil, but due to the high viscosity of rapeseed oil bottoms, the comprehensive development and utilization of rapeseed oil bottoms are greatly restricted. Usually, the method of salting out is used for the hydration of rapeseed oil bottoms. Dispose of as waste after
First, oily feet contain useful substances such as phospholipids with high nutritional value. These resources are wasted in vain, resulting in a waste of resources. Second, oily feet are prone to rancidity and odor, which will also cause certain pollution to the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: a kind of technical method that improves the fluidity of rapeseed oil foot, comprises the following steps:

[0012] 1. Accurately weigh 50g of rapeseed oil into a 250mL conical flask, add 20mL of absolute ethanol, and react at 50°C for 50min.

[0013] 2. After the alcoholization is completed, wait for cooling to room temperature, slowly add 15mL of concentrated sulfuric acid, place in a 35°C water bath and heat for 150min (this time starts counting as soon as the sulfuric acid is added), this reaction is a strong exothermic process, in order to avoid excessive temperature It has a great impact on the reaction, and the reaction process should be controlled at a temperature of 35°C.

[0014] 3. After the reaction is over, add 50mL of distilled water, oscillate, let it stand for stratification, take the upper layer, use NaOH to adjust the pH value to about 6.8,

[0015] 4. Add 50mL of NaCl solution with a mass concentration of 10%, shake it, let it stand for...

Embodiment 2

[0017] Embodiment 2: a kind of technical method that improves the fluidity of rapeseed oil foot, comprises the following steps:

[0018] 1. Accurately weigh 50g of rapeseed oil into a 250mL Erlenmeyer flask, add 25mL of absolute ethanol, and react at 45°C for 55min.

[0019] 2. After the alcoholization is completed, wait for cooling to room temperature, slowly add 20mL of concentrated sulfuric acid, place in a 40°C water bath and heat for 140min (this time starts counting as soon as sulfuric acid is added), this reaction is a strong exothermic process, in order to avoid excessive temperature It has a great impact on the reaction, and the reaction process should be controlled at a temperature of 40°C.

[0020] 3. After the reaction is over, add 60mL of distilled water, oscillate, let stand for stratification, take the upper layer, use NaOH to adjust the pH value to about 6.5,

[0021] 4. Add 40mL of NaCl solution with a mass concentration of 8%, shake it, let it stand for stra...

Embodiment 3

[0023] Embodiment 3: a kind of technical method that improves the fluidity of rapeseed oil foot, comprises the following steps:

[0024] 1. Accurately weigh 50g of rapeseed oil into a 250mL Erlenmeyer flask, add 16mL of absolute ethanol, and react at 55°C for 42min.

[0025] 2. After the alcoholization is completed, wait for cooling to room temperature, slowly add 12mL of concentrated sulfuric acid, place in a 32°C water bath and heat for 160min (this time starts counting as soon as the sulfuric acid is added), this reaction is a strong exothermic process, in order to avoid excessive temperature It has a great impact on the reaction, and the reaction process should be controlled at a temperature of 32°C.

[0026] 3. After the reaction is over, add 45mL of distilled water, oscillate, let it stand for stratification, take the upper layer, and use NaOH to adjust the pH value to about 7.

[0027] 4. Add 60mL of NaCl solution with a mass concentration of 12%, shake it, let it stan...

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Abstract

The invention relates to a technical method for improving the fluidity of rapeseed oil bottoms, comprising the following steps: (1) Weighing rapeseed oil bottoms, adding absolute ethanol to react; (2) After alcoholization, cooling to room temperature and slowly adding concentrated sulfuric acid , placed in a water bath to heat the reaction; (3) After the reaction, add distilled water to shake, then stand for stratification, take the upper layer substance, and adjust the pH value; (4) Add NaCl solution, shake, stand for stratification, and take the upper layer substance That is the finished product. The invention effectively reduces the viscosity of the rapeseed oil bottom (the viscosity of the rapeseed oil bottom can be reduced from 1750mPa.s to 10mPa.s) by modifying the rapeseed oil bottom, and improves the fluidity of the rapeseed oil bottom , expanding the way of comprehensive development and utilization of rapeseed oil feet, which can not only improve the production efficiency of enterprises, but also reduce the pollution to the environment. The invention also has the advantages of convenient use, simple operation, low cost and less investment, and is suitable for large and medium-sized oil processing enterprises.

Description

technical field [0001] The invention relates to a technical method for improving the fluidity of rapeseed oil feet. Background technique [0002] Rapeseed oil foot is a by-product of hydration and degumming of crude rapeseed oil. In the process of producing rapeseed oil by leaching, the degumming process is one of the key steps in its refining. A certain amount of water is added to the rapeseed oil degumming process, and the phospholipids in the rapeseed oil foot absorb water and swell to form a colloid, which also contains neutral oil and other impurities. After centrifugation, the oil foot can be obtained. my country is a big producer of rapeseed edible oil, but due to the high viscosity of rapeseed oil bottoms, the comprehensive development and utilization of rapeseed oil bottoms are greatly restricted. Usually, the method of salting out is used for the hydration of rapeseed oil bottoms. After degrading oil, treat it as waste. First, oily feet contain useful substances ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/00
Inventor 孟陆丽程谦伟黄继伟孙庭广刘昭明
Owner 防城港澳加粮油工业有限公司
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