Chromium-free catalyst for gas-phase fluorination and application thereof

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United States of America Patent

PATENT NO 9845274
SERIAL NO

15103803

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Abstract

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Disclosed in the present invention is a chromium-free catalyst for gas-phase fluorination and an application thereof. The precursor of the related chromium-free catalyst for gas-phase fluorination consists of a compound containing iron element, a compound containing rare earth metal element and a compound containing element A, wherein element A is one selected from Ca, Al, Mg and Ti, the precursor is subjected to calcination and fluorination treatment to obtain the chromium-free catalyst for gas-phase fluorination. The precursor of the catalyst is calcined at 400-500° C. and fluorinated with hydrogen fluoride at 350-450° C. to obtain the chromium-free fluorinated catalyst. The catalyst has characteristics of being chromium-free and environment-friendly, good catalytic activity and long life etc. The catalyst can be used for preparing hydrofluoroolefins or hydrochlorofluoroolefins from halohydrocarbons.

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Patent Owner(s)

Patent OwnerAddress
XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE710065 NO EIGHT NO 168 EAST ROAD YANTA DISTRICT SHAANXI XI'AN XI'AN CITY SHAANXI PROVINCE 710065

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Du, Yongmei Shaanxi, CN 4 2
Han, Sheng Shaanxi, CN 14 43
Hao, Zhijun Shaanxi, CN 4 2
He, Fei Shaanxi, CN 59 583
Kou, Liangang Shaanxi, CN 2 1
Li, Chunying Shaanxi, CN 9 12
Li, Fengxian Shaanxi, CN 4 2
Lu, Jian Shaanxi, CN 220 1580
Ma, Hui Shaanxi, CN 76 307
Ma, Yangbo Shaanxi, CN 2 1
Mao, Wei Shaanxi, CN 101 482
Qin, Yue Shaanxi, CN 20 490
Wang, Bo Shaanxi, CN 734 4273
Zhang, Wei Shaanxi, CN 2625 19909
Zhang, Zhenhua Shaanxi, CN 217 919

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