Continuous preparation method of 2,3,3,3-tetrafluoropropene

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United States of America

PATENT NO 11939277
SERIAL NO

17419298

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Abstract

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The invention provides a continuous preparation method of 2,3,3,3-tetrafluoropropene, comprising the following steps: carrying out liquid-phase catalytic telomerization reaction on ethylene and carbon tetrachloride serving as initial raw materials in the presence of a composite catalyst to obtain a reaction product; performing two-stage membrane separation and purification on the reaction product, and then sequentially performing a primary high-temperature cracking reaction, a gas-phase chlorination reaction, a secondary high-temperature cracking reaction, a primary gas-phase catalytic fluorination reaction and a secondary gas-phase catalytic fluorination reaction to obtain a reaction product; condensing and rectifying the secondary gas-phase catalytic fluorination reaction product to obtain the 2,3,3,3-tetrafluoropropene product.

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Patent Owner(s)

  • ZHEJIANG JUHUA TECHNOLOGY CENTER CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jiang, Qi Zhejiang, CN 242 646
Li, Hongfeng Zhejiang, CN 13 6
Lv, Yang Zhejiang, CN 46 112
Ma, Liyong Zhejiang, CN 2 1
Wang, Jinming Zhejiang, CN 18 54

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