Method for preparing wool fat, wool oil and wool wax without pesticide residues

A technology of pesticide residue lanolin and pesticide residue wool, which is applied to the recovery/refining of fatty substances, fat production, and recovery of fatty substances, etc. It can solve the problems of limited application range, heavy greasy feeling, and difficulty in displaying it, and achieves convenience in use , low irritation, and improved safety

Pending Publication Date: 2021-06-15
浙江花园营养科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical combination between the potential surface active groups and the structure in lanolin i...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Get 200g of crude lanolin, obtain 172g of anhydrous lanolin by refining processes such as decolorization and acid value reduction, and detect that the Gardner chroma is 7.2, the acid value is 0.63mgKOH / g, and the pesticide residue value is 65.2ppm (pesticide residue The value is detected by gel chromatography separation GPC-solid phase extraction SPE-gas chromatography detection GC method). (USP43, EP10 lanolin detection method)

[0031] (2) Turn on the vacuum system of molecular distillation, adjust the number of molecular booster pumps in high vacuum equipment, and adjust the vacuum degree. The vacuum degree of the first-level molecular distillation is stable at 12Pa, and the vacuum degree of the second-level molecular distillation is displayed as 0.1Pa; adjust the first-level molecular distillation The distillation temperature is 120°C, the distillation temperature of the secondary molecular distillation is 160°C, and the temperature of the condensing system is 5...

Embodiment 2

[0038] Embodiment 2: a kind of preparation method of removing pesticide residue wool oil and wool wax, comprises the following steps:

[0039] (1) Get 200g of crude lanolin, obtain 171g of anhydrous lanolin by refining processes such as decolorization and acid value reduction, and detect that the Gardner chroma is 7.0, the acid value is 0.58mgKOH / g, and the pesticide residue value is 43.5ppm (pesticide residue The value is detected by gel chromatography separation GPC-solid phase extraction SPE-gas chromatography detection GC method). (USP43, EP10 lanolin detection method)

[0040](2) Turn on the vacuum system of molecular distillation, adjust the number of high-vacuum equipment molecular booster pumps, and adjust the vacuum degree. The vacuum degree of the first-level molecular distillation is stable at 15Pa, and the vacuum degree of the second-level molecular distillation is displayed at 0.1Pa; adjust the first-level molecular distillation The distillation temperature is 13...

Embodiment 3

[0047] Embodiment 3: a kind of preparation method of removing pesticide residue wool oil and wool wax, comprises the following steps:

[0048] (1) Get 200g crude lanolin, obtain 168g anhydrous lanolin by decolorizing and reducing the acid value etc. process refining, detect Gardner chroma and be 6.8, acid value 0.78mgKOH / g, pesticide residue value is 32ppm (pesticide residue value Gel chromatography separation GPC-solid phase extraction SPE-gas chromatography detection GC method for detection). (USP43, EP10 lanolin detection method)

[0049] (2) Turn on the vacuum system of molecular distillation, adjust the number of molecular booster pumps in high vacuum equipment, and adjust the vacuum degree. The vacuum degree of the first-level molecular distillation is stable at 10Pa, and the vacuum degree of the second-level molecular distillation is displayed at 0.1Pa; adjust the first-level molecular distillation The distillation temperature is 140°C, the distillation temperature of ...

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Abstract

The invention discloses a method for preparing wool fat, wool oil and wool wax without pesticide residues. The method comprises the following steps: removing pesticide residues from anhydrous wool fat by molecular distillation to obtain the wool fat without pesticide residues, and separating wool oil and wool wax from the wool fat without pesticide residues by using a mixed solvent crystallization selection method to obtain the wool oil and the wool wax without pesticide residues. The method provided by the invention improves the quality of the wool fat, the wool oil and the wool wax, improves the added value of products, and enables the products to be more widely used by domestic and overseas customers. The method is simple in operation route, low in production cost and suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a method for preparing pesticide residue-free lanolin, lanolin and wool wax by removing pesticide residues in lanolin. Background technique [0002] Lanolin is secreted by sheep glands, attached to wool, and a natural animal fat obtained through wool washing industry and waste water recycling. Lanolin mainly includes sterols, triterpene alcohols, fatty alcohols and about the same amount of natural lipids (about 94%) formed by fatty acids, and also contains a small amount of free sterols and fatty acids. The crude lanolin recovered from the wool washing industry is dark brown, has a strong smell and is easy to become rancid. The refined anhydrous lanolin obtained after crude lanolin is refined is a light yellow paste, which is not easy to rancid, has good emulsifying properties, can absorb twice as much water as itself, and has a melting point of 38-42°C. It is mostly used in the co...

Claims

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Application Information

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IPC IPC(8): C11B11/00B01D3/12B01D3/10
CPCC11B11/00C11B11/005B01D3/12B01D3/10Y02W30/74
Inventor 张洪真姚园园王子强钱国平刘建刚
Owner 浙江花园营养科技有限公司
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