CAS: 7788-97-8; Chromium(Iii) Fluoride

上下游产品

hydrogen fluoride (1+)*HF2(1-)=H2F2H(1+)*HF2(1-)=H2F2 chromium chromium(III) chloridelanthanum(III) fluoride chromium hydrogen fluoride magnesium fluoride

Chromium Tetrafluoride置于sio2体系中,用 Neat (No Solvent) 作为反应溶剂,化学反应生成 三氟化铬
参考文献:Wartenberg,H. V.,Zeitschrift Fur Anorganische Chemie,1941,Vol. 247,P. 135-146
标题:Wartenberg,H. V.,Zeitschrift Fur Anorganische Chemie,1941,Vol. 247,P. 135-146

专利信息

专利号:US-8680346-B2
优先权日:2008-09-11
标 题 :Process for the preparation of trifluorinated and tetrafluorinated compounds
发明人：PIGAMO ANNE; DEVIC MICHEL; WENDLINGER LAURENT
权利人:PIGAMO ANNE; DEVIC MICHEL; WENDLINGER LAURENT; ARKEMA FRANCE
摘要:The subject of the invention is a process for the preparation of 2,3-dichloro-1,1,1-trifluoropropane by chlorination of 3,3,3-trifluoropropene at a pressure greater than 2 bar. Application in the synthesis of 1234yf.

专利号:US-8263817-B2
优先权日:2010-07-06
标 题:Synthesis of 1234YF by selective dehydrochlorination of 244BB
发明人：NAPPA MARIO JOSEPH; LOUSENBERG ROBERT D; JACKSON ANDREW
权利人:NAPPA MARIO JOSEPH; LOUSENBERG ROBERT D; JACKSON ANDREW; DU PONT
摘要:Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,tetrafluoro-2-chloropropane with a catalyst comprised of chromium (III) oxide, and at least 1% of an alkali metal, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in step (a) above.

专利号:US-11760707-B2
优先权日:2019-11-13
标题 :Process for the synthesis of 2,3,3,3-tetrafluoropropene
发明人：ZHOU CHANGYUE; WANG YONG
权利人:FUJIAN YONGJING TECH CO LTD
摘要:The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).

专利号:US-8445695-B2
优先权日:2003-10-31
标 题 :Synthesis of phosphono-substituted porphyrin compounds for attachment to metal oxide surfaces
发明人：LINDSEY JONATHAN S; LOEWE ROBERT S; MUTHUKUMARAN KANNAN; AMBROISE AROUNAGUIRY
权利人:LINDSEY JONATHAN S; LOEWE ROBERT S; MUTHUKUMARAN KANNAN; AMBROISE AROUNAGUIRY; UNIV NORTH CAROLINA STATE; ZETTACORE INC
摘要:A method of making a phosphono-substituted dipyrromethane comprises reacting an aldehyde or acetal having at least one phosphono group substituted thereon with pyrrole to produce a phosphono-substituted dipyrromethane; and wherein the phosphono is selected from the group consisting of dialkyl phosphono, diaryl phosphono, and dialkylaryl phosphono. Additional methods, intermediates and products are also described.

专利号:US-8129520-B2
优先权日:2003-06-06
标题 :Methods and intermediates for the synthesis of dipyrrin-substituted porphyrinic macrocycles
发明人：YU LIANHE; MUTHUKUMARAN KANNAN; SREEDHARAN PRATHAPAN; LINDSEY JONATHAN S
权利人:YU LIANHE; MUTHUKUMARAN KANNAN; SREEDHARAN PRATHAPAN; LINDSEY JONATHAN S; UNIV NORTH CAROLINA STATE
摘要:The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.

专利号:US-5900514-A
优先权日:1995-06-27
标题 :Synthesis of difluoromethane
发明人：REQUIEME BENOIT; LACROIX ERIC; LANTZ ANDRE
权利人:ATOCHEM ELF SA
摘要:The invention relates to the manufacture of difluoromethane by catalytic gas-phase fluorination of methylene chloride. The operation is carried out in the presence of oxygen at a temperature of between 330 and 450 DEG C. and with a bulk or supported chromium catalyst.