Method for stepwise extraction of silica and hydroxide from silicate substances

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United States of America Patent

PATENT NO 11851333
APP PUB NO 20220267159A1
SERIAL NO

17331652

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Abstract

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A method for stepwise extraction of silica and hydroxide from silicate substances. The silicate substances are leached by chlorine-containing inorganic acids, and the hydroxides are extracted step by step from the leaching liquor by electrochemical deposition method; The raw material of the powder is put in the reactor, inorganic acids, water-soluble alcohol and water are added as the leaching liquor, heated and reacted under the condition of 0.1 MPa or more, and the acidic multi-ion mixed solution and filter residue are obtained by filtration. The acidic multi-ion mixed solution is heated and boiled, and the silicon-containing volatile components are collected, decomposed and deposited in the collector; The deposited volatile components is dried to obtain high purity silica powder; The filter residue is washed and dried to obtain silica; The hydroxides are extracted from the acidic multi-ion mixed solution by electrochemical deposition method.

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Patent Owner(s)

Patent OwnerAddress
INNER MONGOLIA UNIVERSITY OF TECHNOLOGYHOHHOT
INNER MONGOLIA ZHANHUA TECHNOLOGY CO LTDQIAOBAO TOWN SAIHAN DISTRICT HOHHOT INNER MONGOLIA 010020

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Tao Inner Mongolia, CN 613 3850
Shi, Zhiming Inner Mongolia, CN 2 4
Wang, Cunquan Inner Mongolia, CN 1 4
Yan, Hua Inner Mongolia, CN 59 346
Yin, Wendi Inner Mongolia, CN 1 4
Zhang, Minmin Inner Mongolia, CN 11 39

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