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公开(公告)号：US20180057431A1
公开(公告)日：2018-03-01
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
CPC classification number: C07C17/206 , B01J23/83 , B01J27/128 , B01J37/26 , C07C17/25 , C07C21/18
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.
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公开(公告)号：US20170327441A1
公开(公告)日：2017-11-16
申请号：US15535300
申请日：2015-02-05
Applicant: XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE
Inventor： Jian LV , Hui MA , Jijun ZENG , Wei ZHANG , Zhijun HAO , Sheng HAN , Yongmei DU , Jianping KANG , Chunying LI , Fengxian LI
IPC: C07C17/23 , C07C19/08 , C07C17/383 , C07C17/25 , C07C17/20 , B01J35/00 , B01J27/138 , B01J23/89 , C07C21/18
CPC classification number: C07C17/23 , B01J23/002 , B01J23/8892 , B01J23/8906 , B01J23/894 , B01J23/8986 , B01J27/138 , B01J27/32 , B01J35/0006 , B01J37/031 , B01J37/04 , B01J37/26 , B01J38/12 , B01J2523/00 , C07C17/206 , C07C17/25 , C07C17/383 , C07C19/08 , C07C21/18 , C07C19/10 , B01J2523/23 , B01J2523/48 , B01J2523/72 , B01J2523/847 , B01J2523/17 , B01J2523/22 , B01J2523/55 , B01J2523/3706 , B01J2523/842 , B01J2523/36 , B01J2523/845 , B01J2523/25
Abstract: Disclosed is a process for the preparation of 2,3,3,3-tetrafluoropropene, comprising the following two reaction steps: a. a compound having the formula CF3-xClxCF2-yClyCH2Cl undergoes gas-phase fluorination with hydrogen fluoride through n serially-connected reaction vessels in the presence of a compound catalyst producing 2,3-dichloro-1,1,1,2-tetrafluoropropane, 1,2,3-trichloro-1,1,2-trifluoropropane, and 1,3-dichloro-1,1,2,2-tetrafluoropropane; in said formula, x=1, 2, 3, y=1, 2, and 3≦x+y≦5; b. the 2,3-dichloro-1,1,1,2-tetrafluoropropane, 1,2,3-trichloro-1,1,2-trifluoropropane, and 1,3-dichloro-1,1,2,2-tetrafluoropropane undergo gas-phase dehalogenation with hydrogen in the presence of a dehalogenation catalyst, producing 2,3,3,3-tetrafluoropropene and 3-chloro-2,3,3-trifluoropropene, then separation and refining are performed, producing 2,3,3,3-tetrafluoropropene. The present invention is primarily used to produce 2,3,3,3-tetrafluoropropene.
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公开(公告)号：US20170342003A1
公开(公告)日：2017-11-30
申请号：US15535220
申请日：2015-02-05
Applicant: XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE
Inventor： Jian LV , Hui MA , Yujie GU , Bo WANG , Yue QIN , Zhenhua ZHANG , Zhijun HAO , Chunying LI , Fengxian LI , Jing LV , Yanbo BAI
IPC: C07C17/20 , C07C21/18 , C07C17/358 , B01J23/00
CPC classification number: 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
Abstract: 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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4.发明申请
公开(公告)号：US20170320797A1
公开(公告)日：2017-11-09
申请号：US15535260
申请日：2015-02-05
Applicant: XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE
Inventor： Jian LV , Hui MA , Bo WANG , Wei ZHANG , Zhiqiang YANG , Yujie GU , Wei MAO , Jijun ZENG , Xiaobo TANG , Zhenhua ZHANG
IPC: C07C17/20 , C07C17/23 , B01J37/26 , B01J23/745 , B01J37/08 , B01J37/03 , C07C17/383 , C07C17/21
CPC classification number: C07C17/206 , B01J23/745 , B01J37/035 , B01J37/08 , B01J37/26 , C07C17/21 , C07C17/23 , C07C17/383 , C07C21/18 , C07C19/10 , C07C21/22
Abstract: A process for the joint preparation of 1,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene, comprising: (a) starting materials comprising at least one compound having the structure of formula I, II or III is reacted with hydrogen fluoride, producing 1,2,3-trichloro-3,3-difluoropropene, 1,2,3-trichloro-1,1,2-trifluoropropane, and 1,2,3-trichloro-1,1,3-trifluoropropane; in the compounds of said formulae CF2−mClm=CCl-CHF2−nCln (Formula I), CF3−pClpCHCl=CH2Cl (Formula II), and CF3−xClxCF2−yClyCHF2−zClz (Formula III), m=0, 1, 2; n=1, 2; p=2, 3; x=1, 2, 3; y=1, 2; z=1, 2 and 4≦x+y+z≦6; (b) the 1,2,3-trichloro-3,3-difluoropropene, 1,2,3-trichloro-1,1,2-trifluoropropane and 1,2,3-trichloro-1,1,3-trifluoropropane undergo dechlorination, producing 3-chloro-3,3-difluoropropyne, 3-chloro-2,3,3-trifluoropropene and 3-chloro-1,3,3-trifluoropropene; and (c) the 3-chloro-3,3-difluoropropyne, 3-chloro-2,3,3-trifluoropropene and 3-chloro-1,3,3-trifluoropropene are reacted with hydrogen fluoride, simultaneously yielding 1,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropen.FIG. 1 is designated as the drawing of the Abstract.
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5.发明申请
公开(公告)号：US20160311736A1
公开(公告)日：2016-10-27
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
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.
Abstract translation: 在本发明中公开了一种用于气相氟化的无铬催化剂及其应用。 用于气相氟化的相关无铬催化剂的前体由含铁元素的化合物，含稀土金属元素的化合物和含有元素A的化合物组成，其中元素A选自Ca，Al，Mg和Ti ，对前体进行煅烧和氟化处理，得到用于气相氟化的无铬催化剂。 催化剂的前体在400-500℃下煅烧，在氟化氢中在350-450℃下氟化，得到无铬的氟化催化剂。 该催化剂具有无铬，环保，催化活性好，寿命长等特点。催化剂可用于制备卤代烃的氢氟烯烃或氢氯氟烯烃。
