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A kind of preparation method of collagen polypeptide base surfactant

A technology based on surfactants and collagen polypeptides, applied in the field of preparation of protein-based surfactants, can solve the problems of reduced emulsification performance, reduced product solubility, low yield of active ingredients, etc., achieves good emulsification, reduces total cost, The effect of reducing the pressure of waste disposal

Active Publication Date: 2016-08-31
烟台全杰技术产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, experimental analysis found that the yield of active ingredients in the synthetic product was low, only about 58.16%, and the product contained a large amount of sodium oleate, which reduced the solubility and emulsification performance of the product.

Method used

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  • A kind of preparation method of collagen polypeptide base surfactant
  • A kind of preparation method of collagen polypeptide base surfactant
  • A kind of preparation method of collagen polypeptide base surfactant

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] (1) Mix 50g of waste leather shavings with 500ml of water, add 4g of sodium hydroxide and 0.5g of 2-phosphonic acid butane-1,2,4-tricarboxylic acid sodium salt, in an environment of 100°C After hydrolyzing for 10 hours, the unhydrolyzed leather residue was removed by filtration, and the resulting hydrolyzed solution was concentrated under reduced pressure to make the Baume degree reach 18.

[0018] (2) Take 40ml of oleic acid and dehydrate it in an oven for half an hour, then cool it to room temperature in a desiccator. Pour the cooled dehydrated oleic acid into a three-necked beaker, then slowly add 10ml of phosphorus trichloride dropwise under the environment of 50°C, and stir well. After 1 hour of reaction, the temperature was raised to 65° C., and the aging reaction was performed for 2 hours. After the reaction is completed, pour the product into a separatory funnel, let it stand overnight to separate layers, remove the phosphorous acid in the lower layer, and remo...

example 2

[0022] (1) Mix 60g of waste leather shavings with 600ml of water, add 4.8g of sodium hydroxide and 0.6g of 2-phosphonic acid butane-1,2,4-tricarboxylic acid sodium salt, Hydrolyze in an environment of 100° C. for 10 hours, remove leather residues that have not been hydrolyzed by filtration, and concentrate the obtained hydrolyzate under reduced pressure to make the Baume degree reach 18.

[0023] (2) Take 40ml of oleic acid and dehydrate it in an oven for half an hour, then cool it to room temperature in a desiccator. Pour the cooled dehydrated oleic acid into a three-necked beaker, then slowly add 10ml of phosphorus trichloride dropwise under the environment of 50°C, and stir well. After 60 minutes of reaction, the temperature was raised to 65° C., and the aging reaction was performed for 2 hours. After the reaction is completed, pour the product into a separatory funnel, let it stand overnight to separate layers, remove the phosphorous acid in the lower layer, and remove th...

example 3

[0027] (1) Mix 80g of waste leather shavings with 800ml of water, add 6.4g of sodium hydroxide and 0.8g of 2-phosphonic acid butane-1,2,4-tricarboxylic acid sodium salt, at 100°C It was hydrolyzed in the environment for 10 hours, and the unhydrolyzed leather residue was removed by filtration, and the resulting hydrolyzed solution was concentrated under reduced pressure to reach a Baume degree of 18.

[0028] (2) Take 40ml of oleic acid and dehydrate it in an oven for half an hour, then cool it to room temperature in a desiccator. Pour the cooled dehydrated oleic acid into a three-necked beaker, then slowly add 10ml of phosphorus trichloride dropwise under the environment of 50°C and stir well. After 60 minutes of reaction, the temperature was raised to 65° C., and the aging reaction was performed for 2 hours. After the reaction is completed, pour the product into a separatory funnel, let it stand overnight to separate layers, remove the phosphorous acid in the lower layer, an...

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Abstract

The invention relates to a preparation method of a collagen polypeptide-based surfactant. The waste leather shavings are hydrolyzed with a strong alkali solution of sodium hydroxide, filtered to remove chromium-containing filter residue, and the filtrate is distilled under reduced pressure to obtain a protein hydrolyzate. Mix oleoyl chloride and n-hexane in a certain proportion, slowly add dropwise to the concentrated protein hydrolyzate cooled by ice water, react for 20~30min, then raise the temperature to 20~30℃ for aging reaction. After the reaction is complete, raise the temperature to 50~60°C to remove part of n-hexane. The reaction product is poured out, and the by-product sodium oleate and excess n-hexane solvent are removed through centrifugation to obtain a collagen polypeptide-based surfactant. Using chromium-containing leather waste as the main raw material, a high-yield, high-efficiency protein-based surfactant is prepared, which can be used as a degreasing agent in the tanning process, which not only realizes the resource utilization of waste, but also reduces the chemical The total cost of raw materials.

Description

technical field [0001] The invention relates to a preparation method of a surfactant, in particular to a preparation method of a protein-based surfactant, and the prepared surfactant is mainly used as a degreasing agent for a leather-making process. Background technique [0002] Chrome leather shavings mainly come from chrome-containing leather scraps in tanneries. According to statistics, my country's tanning enterprises produce more than 1.4 million tons of leather solid waste every year. Because of the chromium content, these wastes are often treated as industrial pollutants. How to rationally utilize this waste resource is gradually becoming the focus of scientific and technological workers in related fields. Using the collagen polypeptide in the chrome leather shavings hydrolyzate as the hydrophilic group, reacting with oleoyl chloride to form a protein-based surfactant, and reapplying the protein-based surfactant as a degreasing agent to the tanning process is an eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/30C07K14/78C07K1/107C09K23/30
Inventor 王全杰魏星星张萌萌张文斌苏立清韩金永段宝荣王晓龙
Owner 烟台全杰技术产业有限公司
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