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A kind of method for preparing cosmetic grade lanolin

A technology for cosmetic grade and lanolin, applied in the field of preparing cosmetic grade lanolin, can solve the problems of poor purity, darker color of lanolin, inconvenient access, etc., and achieves the effect of expanding the scope of application, increasing added value, and being easy to scrape materials.

Active Publication Date: 2019-11-08
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 includes the following steps:

[0033] First-level molecular distillation: send 200.0g industrial-grade lanolin alcohol to molecular distillation device for molecular distillation. The first-level molecular distillation operation pressure is 20pa, the evaporation temperature is 180℃, and the scraper rotation speed is 10rpm. Light phase and first-order heavy phase;

[0034] Second-level molecular distillation: the first-level heavy phase collected by the first-level molecular distillation is sent to the second-level molecular distillation, the operating pressure is 10pa, the evaporation temperature is 240℃, and the scraper rotation speed is 10rpm. phase;

[0035] Preliminary product: mix the primary light phase and secondary light phase, add 1.5% of the total weight of the light phase and ultrasonic treatment to form a granulation precursor; the frequency of ultrasonic treatment is 400W, and the treatment time is 45min;

[0036] Gra...

Embodiment 2

[0039] A method for preparing cosmetic-grade lanolin includes the following steps:

[0040] Primary molecular distillation: send 200.0g industrial grade lanolin alcohol to molecular distillation device for molecular distillation. The operating pressure of primary molecular distillation is 10pa, the evaporation temperature is 190℃, and the scraper rotation speed is 10rpm. Light phase and first-order heavy phase;

[0041] Second-level molecular distillation: the first-level heavy phase is sent to the second-level molecular distillation, the operating pressure is 10pa, the evaporation temperature is 240℃, and the scraper rotation speed is 10rpm, and the second light phase is collected;

[0042] Primary product: Mix the primary light phase and secondary light phase, add 4.5% of the total amount of light phase phytosterol, and then ultrasonically treat it to form a granulation precursor, which is the primary cosmetic grade lanolin; the frequency of ultrasonic treatment is 450W , The proc...

Embodiment 3

[0046] A method for preparing cosmetic-grade lanolin includes the following steps:

[0047] Two-stage molecular distillation: 200.0g industrial grade lanolin alcohol is sent to molecular distillation device for molecular distillation, the first-stage heavy phase is transferred to second-stage molecular distillation, 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 under the conditions of 10pa, evaporation temperature of 190℃, scraper rotation rate of 10rpm, secondary molecular distillation operating pressure of 10pa, evaporation temperature of 240℃, and scraper rotation rate of 10rpm;

[0048] Preparation of granulation precursor: mix the primary light phase and secondary light phase, add 3% of the total amount of light phase phytosterols, and perform ultrasonic treatment to form a granulation precursor, which is the initial product of cosmetic grade lanolin; The ...

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PUM

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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 engineering and relates to a method for preparing cosmetic-grade lanolin alcohol. Background technique [0002] Lanolin is a mixture of higher fatty alcohols, sterols, and triterpene alcohols. Its unique biochemical structure makes it have excellent skin care and emulsification properties. It can be used in preparations for dry skin and dry glasses, and also in water-in-oil emulsions. Ointment and ointment bases are widely used in the field of external 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 odor, yellow color, high acid value, and poor hand feeling, the method has strict requirements on the quality of raw lanolin, the catalyst is easy to poison, and high pressure hydrogenat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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
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