公开(公告)号：US10087125B2

公开(公告)日：2018-10-02

申请号：US15806138

申请日：2017-11-07

Applicant: XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE

Inventor： Jian Lu ,  Bo Wang ,  Yue Qin ,  Wei Mao ,  Liangang Kou ,  Zhenhua Zhang ,  Fei He ,  Wei Zhang ,  Hui Ma ,  Yangbo Ma ,  Zhijun Hao ,  Chunying Li ,  Yongmei Du ,  Fengxian Li ,  Sheng Han

IPC: C07C17/20 ,  C07C21/18 ,  C07C17/25 ,  B01J23/83 ,  B01J37/26 ,  B01J27/128

Abstract: Disclosed in the present invention are a chromium-free gas phase fluorination catalyst and an application thereof. The precursor of the related chromium-free gas phase fluorination catalyst 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 roasting and fluorination treating to obtain the chromium-free gas phase fluorination catalyst. The precursor of the catalyst is roasted at 400-500° C. and fluoridized with hydrogen fluoride at 350-450° C. to obtain the chromium-free gas phase fluorination 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.

公开(公告)号：US09845274B2

公开(公告)日：2017-12-19

申请号：US15103803

申请日：2014-08-05

Applicant: XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE

Inventor： Jian Lu ,  Bo Wang ,  Yue Qin ,  Wei Mao ,  Liangang Kou ,  Zhenhua Zhang ,  Fei He ,  Wei Zhang ,  Hui Ma ,  Yangbo Ma ,  Zhijun Hao ,  Chunying Li ,  Yongmei Du ,  Fengxian Li ,  Sheng Han

IPC: B01J37/26 ,  B01J23/83 ,  B01J27/128 ,  C07C17/20 ,  C07C17/25 ,  C07C21/18

CPC classification number: C07C17/206 ,  B01J23/83 ,  B01J27/128 ,  B01J37/26 ,  C07C17/25 ,  C07C21/18

Abstract: 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.