Method for producing surface active agent utilizing soya-bean oil footings

A technology of surfactant and oil foot, applied in the field of soybean oil foot surfactant and its preparation, can solve the problems of waste, zero utilization rate, environmental pollution, etc. Reasonable effect of process design

Inactive Publication Date: 2004-03-17
王勇 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a by-product of refining edible oil, oil feet were initially discarded as agricultural and sideline product waste, and the utilization rate was almost zero, which not only caused a great waste of resources, but also seriously polluted the environment
In recent years, people have noticed the waste of this resource, and began to research and refine the oil foot, which is usually only used to extract crude phospholipids. However, after extracting crude phospholipids, there is still a lot of waste of oil and pollution to the environment. Therefore, the rational development and utilization of soybean oil foot is still a very economical and socially significant topic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Add 100Kg soybean oil feet and 25Kg of 50% dilute sulfuric acid into the acidification tank, control the temperature at 95℃, acidify for 5 hours, release the lower liquid in the acidification tank, then wash twice with 90℃ deionized water, and then heat and distill After removing the volatile gas, the mixed fatty acid is prepared. After cooling, the mixed fatty acid is esterified with methanol to produce mixed fatty acid methyl ester. Then, the mixed fatty acid methyl ester and monoethanolamide are added into the reaction tank at a weight ratio of 1:1.2. Sodium methoxide is used as a catalyst, and the temperature is controlled to react at 120°C for 10 hours to generate fatty acid monoethanolamide, which is purified with acetone to obtain fatty acid monoethanolamide crystals. Add the fatty acid monoethanolamide crystals to the reactor and heat it to melt, add maleic anhydride and boric acid in a ratio of 1:1.2:0.8, heat while stirring, and control the temperature at 90℃. Hea...

Embodiment 2

[0013] Add 100Kg of soybean oil feet and 30Kg of 50% dilute sulfuric acid into the acidification tank, control the temperature at 98℃, acidify for 4 hours, release the lower liquid in the acidification tank, then wash twice with 90℃ deionized water, and then heat for distillation After removing the volatile gas, the mixed fatty acid is prepared. After cooling, the mixed fatty acid is esterified with methanol to produce mixed fatty acid methyl ester. Then, the mixed fatty acid methyl ester and monoethanolamide are added into the reaction tank at a weight ratio of 1:1.5. Sodium methoxide is used as a catalyst, and the temperature is controlled to react at 130°C for 10 hours to generate fatty acid monoethanolamide, which is purified with acetone to obtain fatty acid monoethanolamide crystals. Add the fatty acid monoethanolamide crystals to the reaction kettle and heat it to melt, add maleic anhydride and boric acid in a ratio of 1:1.4:1, heat while stirring, and control the temperatu...

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PUM

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Abstract

The present invention provides one kind of chemical product and its preparation process. The process of using soybean oil leftover to produce chemical surfactant includes the reaction of soybean oil leftover, dilute sulfuric acid and methanol to produce mixed fatty acid methyl ester, the reaction of mixed fatty acid methyl ester and glycolamide to produce fatty acid glycolamide, the reaction of fatty acid glycolamide, maleic anhydride and boric acid to produce oleic glycolamide sulfo succinate as surfactant. The surfactant is used mainly in producing detergent, tableware washing liquid, shampoo, soap, surface cleaning agent, dirt cleaning agent and other daily chemical products. The present invention can save resource and reduce pollution.

Description

1. Technical field [0001] The invention relates to a chemical product production technology, in particular to a soybean oil feet surfactant and a preparation method thereof. 2. Technical background [0002] As a by-product of refined edible oil, oil feet were initially discarded as agricultural and sideline product waste, and the utilization rate was almost zero, which not only caused a huge waste of resources, but also seriously polluted the environment. In recent years, people have noticed the waste of this resource, and began to research and develop oil feet, which are usually only used to extract crude phospholipids. However, after the crude phospholipids are extracted, there is still a large waste of oil and pollution, and there is still environmental pollution. Therefore, the rational development and utilization of soybean oil feet is still a subject of great economic benefit and social significance. 3. Summary of the invention [0003] The purpose of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K23/08
Inventor 王勇王玉武强
Owner 王勇
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