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Bleaching process of sericite

A sericite and process technology, applied in the field of sericite bleaching process, can solve the problems of sericite color impurity, low efficiency, inconvenient removal of residual ions, etc., so as to improve dehydration efficiency, work efficiency and purity Effect

Inactive Publication Date: 2018-12-18
ANHUI HENGHAO SCI & TECH
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Problems solved by technology

Existing sericite contains iron oxide inside, so the color of sericite is not pure, when using sericite, sericite needs to be bleached, and existing bleaching is to reduce sericite by reducing agent, thereby remove internal impurities, The existing process efficiency is not high, and the residual ions are inconvenient to remove, so a sericite bleaching process is now proposed

Method used

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  • Bleaching process of sericite
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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0026] refer to Figure 1-2 , a kind of sericite bleaching process, comprises the following steps:

[0027] S1: Grinding, putting the prepared sericite stone into a three-roller grinder, performing preliminary grinding on it, and repeating the grinding several times to obtain sericite particles A;

[0028] S2: grading and screening, putting the sericite particles A into a grading sieve for sieving to obtain the sieved sericite particles B, and storing the sieved impurities and large particles separately;

[0029] S3: magnetic separation, put the sericite particles B into a high gradient magnetic separator for magnetic separation, separate the metal substance, and ob...

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Abstract

The invention discloses a bleaching process of sericite. The process includes the steps of: grinding: putting well prepared sericite stone into a three-roll grinder, conducting preliminary grinding, and then performing grinding repeatedly to obtain sericite particles A; grading screening: putting the sericite particles A into a grading screen for sieving to obtain screened sericite particles B, and storing the sieved impurities and large particles separately, performing magnetic separation, putting the sericite particles B into a high gradient magnetic separator for magnetic separation to isolate metal substances, thus obtaining sericite particles C; and chemical bleaching: putting the sericite particles C into a sealed stirring tank, and adding pure water to form a suspension. The processprovided by the invention improves the separation effect and work efficiency, is beneficial to improving the product quality of sericite particles, can remove the metal substances probably mixed in the crushing process, improves the product quality, increases the purity of sericite particles, and improves the dehydration efficiency.

Description

technical field [0001] The invention relates to the technical field of sericite bleaching, in particular to a sericite bleaching process. Background technique [0002] Sericite is a kind of mica, which belongs to silicate minerals with layered structure. Sericite has a wide range of uses, used in rubber, plastics, coatings, paints, ceramics, thermal insulation, cosmetics, pigments, papermaking, metallurgy and other industries. Sericite is a kind of natural fine-grained muscovite, which is a silicate with a layered structure. It can be split into extremely thin sheets with a thickness of less than 1um (in theory, it can be cut to 0.001um). Large ratio; good abrasion resistance and abrasion resistance; heat-resistant insulation; insoluble in acid-base solution; stable chemical properties. In addition, the chemical composition and structure of sericite are similar to kaolin, and it has some characteristics of clay minerals, that is, good dispersion and suspension in aqueous m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/42
CPCC01B33/42
Inventor 万斌关洪勇陈静
Owner ANHUI HENGHAO SCI & TECH