Combined treatment device and method for surface modification of fumed silica

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United States of America

PATENT NO 12234361
APP PUB NO 20220389228A1
SERIAL NO

17883638

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Abstract

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The present disclosure relates to a combined treatment method for surface modification of fumed silica, which comprises the following steps: (1) two sets of modification devices are used to jointly treat fumed silica; the fumed silica is modified with a modifier in the reaction furnace of each set of modification devices to obtain two groups of modified fumed silica and exhaust gas respectively; (2) the exhaust gas obtained in step (1) is separated respectively to obtain unreacted modifier and by-products, and the obtained by-products are input into the reaction furnace of the other set of modification devices as reaction assistants to participate in the modification reaction; and the obtained unreacted modifiers are returned to the reaction furnace of the original modification device for repeated use.

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Patent Owner(s)

  • GUANGZHOU HUIFU RESEARCH INSTITUTE CO., LTD.; HUBEI HUIFU NANOMATERIAL CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duan, Xianjian Guangdong, CN 3 0
Wang, Chenggang Hubei, CN 5 0
Wang, Yuelin Guangdong, CN 28 52
Wu, Chunlei Guangdong, CN 19 18
Xu, Shiyu Guangdong, CN 18 250

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