Method for preparing high-smoothness-level talcum powder

A talcum powder and slippery technology, applied in the direction of magnesium silicate, silicate, etc., can solve the problems of talc powder lamellar crystal shape, gloss, and slippery protection, and achieve uniform particle size , improve skin feel, broad market prospects

Active Publication Date: 2016-09-28
江西联锴新材料有限公司
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  • Abstract
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Problems solved by technology

However, none of the above studies have conducted detailed research on the protection of the lamellar crystal shape, gloss, and slipperiness of talcum powder.

Method used

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  • Method for preparing high-smoothness-level talcum powder
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  • Method for preparing high-smoothness-level talcum powder

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Embodiment Construction

[0023] In order to further illustrate the present invention, implement according to the following steps, the data in the table are the experimental parameters and evaluation instructions of six embodiments.

[0024] (1) Weigh 1 kg of talc ore for crushing treatment, and then crush it into 325-mesh fine powder with a continuous pulverizer.

[0025] (2) Mix deionized water and grinding aid to make a dispersion.

[0026] (3) Add the 325-mesh fine powder material into water and grinding aid, the solid concentration of the material is 30%-50%, and stir evenly.

[0027] (4) Add specific strength grinding media into the sand mill, and the media filling rate is 40%-60% (volume percentage).

[0028] (5) The slurry is circularly ground for 4-5 times by a vertical grinding and peeling machine. After the slurry is adjusted, classified, pressed, dried, crushed and sieved, the high-slippery talc powder can be obtained.

[0029] Table 1 Experimental parameters and evaluation table of each ...

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Abstract

The invention discloses a method for preparing a high-smoothness-level talcum powder, wherein a preparation process comprises the following steps: (1) carrying out crushing treatment on a raw material, and smashing the crushed raw material into a fine powder with a continuous crusher; (2) mixing evenly deionized water and an auxiliary agent, to prepare a dispersion liquid; (3) adding the fine powder material to water and a grinding aid, making the material solid concentration be 30%-50%, and stirring evenly; (4) adding a specific-strength grinding medium into a vertical grinding stripping machine, wherein the medium filling rate is 40 vol%-60 vol%; and (5) carrying out circular grinding of the slurry by the vertical grinding stripping machine for 4-5 times, then carrying out conditioning, grading, press filtration, drying, crushing and sieving of the slurry, and thus obtaining the 1250-mesh high-smoothness-level talcum powder. The friction coefficient of the talcum powder is reduced, and the smoothness level of the talcum powder is increased, so that the talcum powder can be better applied in the field of daily chemical industry.

Description

technical field [0001] The invention relates to a method for preparing high-sliding talcum powder by a wet method. Background technique [0002] The main component of talc is hydrated magnesium silicate, molecular formula Mg 3 [Si 4 o 10 ](OH) 2 . Talc powder has excellent properties such as good heat resistance, lubrication, acid and alkali resistance, insulation and strong adsorption to oil, and can be used in the production of cosmetics, medicines, paper, rubber, plastics, paints, ceramics, etc. With the development of modern industry, higher and higher requirements are put forward for the slipperiness of talcum powder, especially in the daily chemical field, the requirement for slipperiness of talc powder is more stringent. High-slip talcum powder is in short supply. [0003] At present, the industrial production of talcum powder in my country is mainly based on dry processing. Talc mineral is soft and has a Mohs hardness of 1, so it is easy to be crushed into pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/22
CPCC01B33/22C01P2004/03C01P2004/51
Inventor 宁海金徐先进马江平廖道发徐笑
Owner 江西联锴新材料有限公司
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