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Aluminum stearate and preparation method thereof

A technology of aluminum stearate and stearic acid, which is applied in the directions of carboxylate preparation, carboxylate preparation, chemical instruments and methods, etc., can solve the problems of different material selection and preparation methods, and achieves simple preparation process and source of raw materials. wide effect

Inactive Publication Date: 2015-11-11
DEQING WEIKANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above-mentioned aluminum stearate is seldom used in food, medicine, cosmetics and other products at present, the reason lies in the difference in material selection and production method

Method used

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preparation example Construction

[0012] A method for preparing aluminum stearate, the preparation method comprising: selecting a kneader that can be purchased from outside, adding all the components into the kneader at one time according to the proportion, controlling the temperature at 80-100°C, and kneading The time is 1.6-2.4 hours.

[0013] A preferred embodiment of the present invention is: the preparation method includes: adding all the components into the kneader at one time according to the proportion, controlling the temperature to 90°C, and kneading for 2 hours.

Embodiment 1

[0014] Embodiment 1: a kind of aluminum stearate, described aluminum stearate is made up of following component and weight ratio: the stearic acid of 10 weight parts, the aluminum trichloride of 10 weight parts, the catalyst of 0.3 weight part and wherein the content of octadecane in the stearic acid is more than 40%, and the aluminum content in the aluminum trichloride, that is, the aluminum purity reaches more than 95%; the catalyst is hydrogen peroxide or ammonia;

[0015] A kind of preparation method of described aluminum stearate, described preparation method comprises:

[0016] Select a kneader that can be purchased from outside, add all the above-mentioned components into the kneader at one time according to the proportion, control the temperature at 90°C, and knead for 2 hours.

Embodiment 2

[0017] Embodiment 2: a kind of aluminum stearate, described aluminum stearate is made up of following component and weight proportion: the stearic acid of 8 weight parts, the aluminum trichloride of 8 weight parts, the catalyst of 0.2 weight part Made in a kneader through a one-step process; Wherein the stearic acid contains more than 40% octadecyl carbon, and the aluminum content in the aluminum trichloride, that is, the aluminum purity reaches more than 95%; The catalyzer selects hydrogen peroxide or ammonia water for use.

[0018] A preparation method of aluminum stearate, the preparation method comprising: selecting a kneader that can be purchased from outside, adding all the components into the kneader at one time according to the proportion, controlling the temperature to 80°C, and kneading time at 1.6 hours is enough.

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Abstract

The invention relates to an aluminum stearate and a preparation method thereof. The aluminum stearate is composed of the following components in parts by weight: 8-12 parts of stearic acid, 8-12 parts of aluminum trichloride and 0.2-0.4 part of catalyst. The aluminum stearate is prepared by a one-step preparation process in a kneader. The C18 content in the stearic acid is 40% or above, and the aluminum content (aluminum purity) in the aluminum trichloride is up to 95% or above. The catalyst adopts oxydol or ammonia water. The preparation method comprises the following steps: adopting a purchasable kneader, proportionally adding all the components into the kneader, and kneading for 1.6-2.4 hours while controlling the temperature at 80-100 DEG C. The aluminum stearate has the characteristics of wide raw material sources, simple preparation technique and the like, and can be conveniently and safely used in medical industry.

Description

technical field [0001] The invention relates to medicinal aluminum stearate and a preparation method thereof, belonging to the technical field of auxiliary materials in industries such as pharmacy. Background technique [0002] Commonly used aluminum stearate is a common industrial product, it is toxic white or yellowish powder, insoluble in water, ethanol, ether, soluble in alkali, turpentine, mineral oil, petroleum, kerosene and benzene and other solvents. It decomposes into stearic acid and corresponding salts in case of strong acid. Used as heat stabilizer and lubricant for polyvinyl chloride plastic, anti-sedimentation agent and drier in paint industry, waterproofing agent for fabrics, thickener for lubricating oil, etc. Therefore, the above-mentioned aluminum stearate is seldom used in products such as food, medicine, cosmetics at present, and its reason is the difference of material selection and preparation method. Contents of the invention [0003] The purpose o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C53/126C07C51/41
CPCC07C51/412
Inventor 沈玉田
Owner DEQING WEIKANG BIOTECH
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