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公开(公告)号：US20220219146A1
公开(公告)日：2022-07-14
申请号：US17609771
申请日：2020-06-01
IPC分类号： B01J23/755 , B01J21/08 , B01J21/18 , B01J27/138 , B01J27/125 , B01J23/28 , B01J23/883 , B01J23/30 , B01J35/10 , C07C17/25
摘要： Disclosed is a catalyst for preparing 2,3,3,3-tetrafluoropropene by gas-phase hydrodechlorination, which solves the problem of the high costs and easy deactivation of traditional chlorofluorocarbon hydrodechlorination catalysts. The disclosed catalyst is characterized in consisting of an active component and a carrier, wherein the active component is a combination of one or more of the metals: Ni, Mo, W, Co, Cr, Cu, Ce, La, Mn and Fe. The catalyst in the present invention has excellent performance, high activity, good stability and a low reaction temperature, effectively reduces reaction energy consumption, and has industrial application value.
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公开(公告)号：US09845274B2
公开(公告)日：2017-12-19
申请号：US15103803
申请日：2014-08-05
发明人： 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
CPC分类号： C07C17/206 , B01J23/83 , B01J27/128 , B01J37/26 , C07C17/25 , C07C21/18
摘要： 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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公开(公告)号：US11833489B2
公开(公告)日：2023-12-05
申请号：US17609771
申请日：2020-06-01
IPC分类号： B01J23/755 , B01J21/08 , B01J21/18 , B01J23/28 , B01J23/30 , B01J23/883 , B01J27/125 , B01J27/138 , B01J35/10 , C07C17/25
CPC分类号： B01J23/755 , B01J21/08 , B01J21/18 , B01J23/28 , B01J23/30 , B01J23/883 , B01J27/125 , B01J27/138 , B01J35/1014 , B01J35/1019 , B01J35/1023 , B01J35/1028 , C07C17/25
摘要： Disclosed is a catalyst for preparing 2,3,3,3-tetrafluoropropene by gas-phase hydrodechlorination, which solves the problem of the high costs and easy deactivation of traditional chlorofluorocarbon hydrodechlorination catalysts. The disclosed catalyst is characterized in consisting of an active component and a carrier, wherein the active component is a combination of one or more of the metals: Ni, Mo, W, Co, Cr, Cu, Ce, La, Mn and Fe. The catalyst in the present invention has excellent performance, high activity, good stability and a low reaction temperature, effectively reduces reaction energy consumption, and has industrial application value.
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公开(公告)号：US09878969B2
公开(公告)日：2018-01-30
申请号：US15535220
申请日：2015-02-05
发明人： Jian Lv , Hui Ma , Yujie Gu , Bo Wang , Yue Qin , Zhenhua Zhang , Zhijun Hao , Chunying Li , Fengxian Li , Jing Lv , Yanbo Bai
IPC分类号： C07C17/20 , C07C21/18 , C07C17/358 , B01J23/00
CPC分类号： C07C17/20 , B01D2255/2045 , B01D2255/2047 , B01D2255/20715 , B01D2255/20723 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/2092 , B01J23/00 , B01J23/002 , B01J23/78 , B01J23/80 , B01J23/83 , B01J23/8472 , B01J23/8892 , B01J37/03 , B01J37/04 , B01J37/08 , B01J37/26 , B01J2523/00 , C07C17/206 , C07C17/23 , C07C17/25 , C07C17/35 , C07C17/358 , C07C21/18 , C07C19/10 , B01J2523/27 , B01J2523/31 , B01J2523/845 , B01J2523/22 , B01J2523/23 , B01J2523/48 , B01J2523/847 , B01J2523/3706 , B01J2523/72 , B01J2523/842 , B01J2523/36 , B01J2523/25 , B01J2523/17 , B01J2523/55
摘要： Disclosed is a process for the preparation of 1,3,3,3-tetrafluoropropene, comprising: (a) a compound having the formula CF3-xClxCHClCHF2-yCly and in the presence of a compound catalyst, undergoes, through n serially-connected reactors, gas-phase fluorination with hydrogen fluoride, producing 1,2,3-trichloro-1,1,3-trifluoropropane, and 1,2-dichloro-1,1,3,3-tetrafluoropropane; in said formula, x=1, 2 or 3; y=1 or 2, and 3≦x+y≦5; (b) 1,2,3-trichloro-1,1,3-trifluoropropane, and 1,2-dichloro-1,1,3,3-tetrafluoropropane undergo, in the presence of a dehalogenation catalyst, gas-phase dehalogenation with hydrogen, producing 3-chloro-1,3,3-trifluoropropene, and 1,1,3,3-tetrafluoropropene; (c) 3-chloro-1,3,3-trifluoropropene and 1,1,3,3-tetrafluoropropene undergo, in the presence of a fluorination catalyst, gas-phase fluorination with hydrogen fluoride, producing 1,3,3,3-tetrafluoropropene. The present invention is primarily used to produce 1,3,3,3-tetrafluoropropene.
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公开(公告)号：US10087125B2
公开(公告)日：2018-10-02
申请号：US15806138
申请日：2017-11-07
发明人： 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
摘要： 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.
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