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Method for preparing cosmetic-grade lanonol

A technology of cosmetic grade lanolin alcohol, which is applied in the field of preparation of cosmetic grade lanolin alcohol, can solve the problems of poor purity, darkening of lanolin alcohol, inconvenient handling, etc., and achieve the effect of expanding application range, increasing added value, and easy scraping

Active Publication Date: 2019-04-05
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

[0005] The lanolin alcohol prepared by the prior art including the above two methods has poor purity because it contains lanolin, acid and other impurities. It is called industrial grade lanolin alcohol, which is far below the requirements of cosmetic grade. Lanolin is mainly filled in iron drums and cans while it is hot, and solidifies into a light yellow hard solid after cooling
Downstream users need to heat and melt it when taking it. This process is inconvenient to use, and the color of lanolin becomes darker after frequent heating, and the energy consumption is large.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing cosmetic grade lanolin, comprising the following steps:

[0033] Primary molecular distillation: Send 200.0g of industrial-grade lanolin alcohol into a molecular still for molecular distillation. The operating pressure of the primary molecular distillation is 20pa, and the evaporation temperature is 180°C for distillation. The rotation speed of the scraper is 10rpm. light phase and primary heavy phase;

[0034] Secondary molecular distillation: the primary heavy phase collected by primary molecular distillation is sent to secondary molecular distillation, the operating pressure is 10pa, the evaporation temperature is 240°C for distillation, the rotation speed of the scraper is 10rpm, and the secondary light phase is collected. Mutually;

[0035] Primary product: mix the primary light phase and the secondary light phase, add 1.5% phytosterol of the total weight of the light phase, and perform ultrasonic treatment to form a granulation precursor; t...

Embodiment 2

[0039] A method for preparing cosmetic grade lanolin, comprising the following steps:

[0040] Primary molecular distillation: Send 200.0g of industrial grade lanolin alcohol into a molecular still for molecular distillation. The operating pressure of the primary molecular distillation is 10pa, and the evaporation temperature is 190°C for distillation. The rotation speed of the scraper is 10rpm. light phase and primary heavy phase;

[0041] Secondary molecular distillation: send the primary heavy phase to the secondary molecular distillation, the operating pressure is 10pa, the evaporation temperature is 240°C for distillation, the scraper rotation speed is 10rpm, and the distilled secondary light phase is collected;

[0042] Primary product: Mix the primary light phase and the secondary light phase, add 4.5% phytosterol in the light phase, and perform ultrasonic treatment to form a granulation precursor, which is the primary product of cosmetic grade lanolin; the frequency of...

Embodiment 3

[0046] A method for preparing cosmetic grade lanolin, comprising the following steps:

[0047] Two-stage molecular distillation: Send 200.0g of industrial-grade lanolin alcohol into a molecular still for molecular distillation, the first-stage heavy phase is transferred to the second-stage molecular distillation, and the first-stage light phase and the second-stage light phase are collected; the operating pressure of the first-stage molecular distillation Distillation is carried out at 10pa, the evaporation temperature is 190°C, the rotation speed of the scraper is 10rpm, the operating pressure of the secondary molecular distillation is 10pa, the distillation is carried out at the evaporation temperature of 240°C, and the rotation speed of the scraper is 10rpm;

[0048] Preparation of granulation precursor: mix the first-level light phase and the second-level light phase, add 3% phytosterol in the total amount of the light phase, and perform ultrasonic treatment to form a granu...

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Abstract

The invention discloses a method for preparing cosmetic-grade lanonol. The method comprises the following steps that 1, molecular distillation is conducted; 2, granulation is conducted; 3, granular lanonol obtained in the step 2 is unloaded to obtain a cosmetic-grade lanonol finished product, wherein unloading temperature is controlled at 5-20 DEG C. By means of the method, the additional value ofthe industrial lanonol is improved, meanwhile, storage and use processes of a downstream customer are greatly facilitated, and the domestic and international market requirements of the granular lanonol are met. The method is simple to operate, the preparation conditions are mild, the production cost is low, and the method for preparing the cosmetic-grade lanonol is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a method for preparing cosmetic grade lanolin alcohol. Background technique [0002] Lanolol is a mixture of higher fatty alcohols, sterols, and triterpene alcohols. Its unique biochemical structure makes it have excellent skin care and emulsifying properties. It can be used in preparations for dry skin and dry glasses, and also in water-in-oil emulsions Cream and ointment bases, widely used in topical preparations and cosmetics. [0003] In the prior art, there are mainly two methods for preparing lanolin from lanolin, one of which is to prepare lanolin by high-pressure hydrogenation of lanolin. Although this method solves the shortcomings of lanolin products such as unpleasant smell, yellow color, high acid value, and poor hand feeling, the method has strict requirements on the quality of raw material lanolin, the catalyst is easily poisoned, and high-pressure hydrogenation has h...

Claims

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Application Information

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IPC IPC(8): A61K8/63A61K8/34A61Q19/00
CPCA61K8/34A61K8/63A61K2800/82A61Q19/007
Inventor 刘建刚王子强郭建阳姚臣汪浩邵振宝
Owner 浙江花园营养科技有限公司