ES2055254T3 - Procedimiento para la preparacion de 1,1,1,2-tetrafluoro-etano. - Google Patents

Procedimiento para la preparacion de 1,1,1,2-tetrafluoro-etano.

Info

Publication number
ES2055254T3
ES2055254T3 ES90117355T ES90117355T ES2055254T3 ES 2055254 T3 ES2055254 T3 ES 2055254T3 ES 90117355 T ES90117355 T ES 90117355T ES 90117355 T ES90117355 T ES 90117355T ES 2055254 T3 ES2055254 T3 ES 2055254T3
Authority
ES
Spain
Prior art keywords
procedure
treating
hydroxide
mass
tetrafluoro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES90117355T
Other languages
English (en)
Inventor
Wolfgang Dr Wanzke
Gunter Dr Siegemund
Wilfried Dr Schmieder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of ES2055254T3 publication Critical patent/ES2055254T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/26—Chromium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
    • C07C17/206—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being HX

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

EL INVENTO SE REFIERE A UN PROCEDIMIENTO QUE SE UTILIZA PARA PRODUCIR 1,1,1,2-TETRAFLUOROETANO, CONSISTE EN TRATAR 1, 1, 1-TRIFLUORO-2-CLOROETANO CON FLUORURO DE HIDROGENO EN FASE GASEOSA Y SE CARACTERIZA PORQUE SE EMPLEA UN CATALIZADOR QUE CONTIENE CROMO Y MAGNESIO Y QUE SE OBTIENE MEDIANTE PRECIPITACION DE HIDROXIDO CROMICO (III), TRATANDO UN MOL DE SAL DE CROMO (III) CON 1,5 MOLES DE HIDROXIDO MAGNESICO, EN PRESENCIA DE AGUA, PARA OBTENER UNA MEZCLA, TRANSFORMANDO LA MEZCLA DE REACCION EN UNA MASA QUE CONTIENE HIDROXIDO CROMICO Y UN SAL DE MAGNESIO, SECANDO LA MASA Y TRATANDO LA MASA CON FLUORURO DE HIDROGENO A UNA TEMPERATURA ENTRE 20 Y 500 C.
ES90117355T 1989-09-13 1990-09-10 Procedimiento para la preparacion de 1,1,1,2-tetrafluoro-etano. Expired - Lifetime ES2055254T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3930507A DE3930507A1 (de) 1989-09-13 1989-09-13 Verfahren zur herstellung von 1,1,1,2-tetrafluorethan

Publications (1)

Publication Number Publication Date
ES2055254T3 true ES2055254T3 (es) 1994-08-16

Family

ID=6389296

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90117355T Expired - Lifetime ES2055254T3 (es) 1989-09-13 1990-09-10 Procedimiento para la preparacion de 1,1,1,2-tetrafluoro-etano.

Country Status (8)

Country Link
US (1) US6288293B1 (es)
EP (1) EP0417680B1 (es)
JP (1) JP2813750B2 (es)
BR (1) BR9004539A (es)
CA (1) CA2025145C (es)
DE (2) DE3930507A1 (es)
DK (1) DK0417680T3 (es)
ES (1) ES2055254T3 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0513823B1 (de) * 1991-05-17 1995-10-04 Hoechst Aktiengesellschaft Verfahren zur Herstellung von Pentafluorethan (R 125)
AU2892292A (en) * 1991-10-25 1993-05-21 Allied-Signal Inc. Process for the manufacture of 1,1,1,2-tetrafluoroethane
US5334785A (en) * 1991-10-25 1994-08-02 Allied-Signal Inc. Process for the manufacture of 1,1,1,2-tetrafluoroethane
US5523498A (en) * 1992-12-08 1996-06-04 E. I. Du Pont De Nemours And Company Process for reducing the fluorine content of hydrofluorocarbons and hydrohalofluorocarbons
US5345017A (en) * 1992-12-08 1994-09-06 E. I. Du Pont De Nemours And Company Process for reducing the fluorine content of halocarbons
FR2700770B1 (fr) * 1993-01-27 1995-03-24 Atochem Elf Sa Procédé de fabrication du 1,1,1,2-tétrafluoro-2-chloroéthane et du pentafluoroéthane.
US5866730A (en) * 1993-04-02 1999-02-02 E. I. Du Pont De Nemours And Company Process for enriching 1,2-dichloro-1,1,2,2-tetrafluoroethane from a mixture of dichlorotetrafluoroethane isomers
DE19510024C2 (de) * 1995-03-20 1997-02-06 Hoechst Ag Verfahren zur Herstellung von Pentafluorethan (R 125)
EP0801980B1 (en) * 1996-04-17 2002-09-11 AUSIMONT S.p.A. Catalyst for the fluorination of halogenated hydrocarbons
US6333440B1 (en) 2000-04-07 2001-12-25 E. I. Du Pont De Nemours And Company Process for perfluorocyclobutane purification
FR2852007B1 (fr) * 2003-03-07 2007-05-11 Solvay Procede de fabrication de 1,1,1-trifluoroethane
WO2006069107A2 (en) 2004-12-22 2006-06-29 E.I. Dupont De Nemours And Company Copolymers of perfluoro (alkyl venyl ether) for photochemical reactor, process for increasing fluorine content and production of olefinic compound by photochlorination

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992325A (en) * 1975-09-25 1976-11-16 E. I. Du Pont De Nemours And Company γ-CrOOH fluorination catalysts
AU518050B2 (en) 1977-02-17 1981-09-10 Imperial Chemical Industries Limited Manufacture of 1,1,1,2-tetrafluoro ethane & method of reducing amount of 1,1,difluord-chldro ethlene impurity
US4158675A (en) 1977-09-23 1979-06-19 Imperial Chemical Industries Limited Manufacture of halogenated compounds
US4129603A (en) 1978-02-07 1978-12-12 Imperial Chemical Industries Limited Manufacture of halogenated compounds
JPS5527139A (en) 1978-08-14 1980-02-27 Daikin Ind Ltd Preparation of tetrafluoroethane
DE3323374A1 (de) 1983-06-29 1985-01-10 Hoechst Ag, 6230 Frankfurt Katalysatoren fuer fluorierungs- und/oder dismutierungsreaktionen von halogenkohlenwasserstoffen und verfahren zu ihrer herstellung
JPH0788326B2 (ja) * 1987-11-26 1995-09-27 旭硝子株式会社 １，１−ジクロロ−１，２，２，２−テトラフルオロエタンの製造方法

Also Published As

Publication number Publication date
DK0417680T3 (da) 1993-04-19
DE3930507A1 (de) 1991-03-21
DE59001006D1 (de) 1993-04-15
EP0417680A1 (de) 1991-03-20
JP2813750B2 (ja) 1998-10-22
BR9004539A (pt) 1991-09-10
EP0417680B1 (de) 1993-03-10
CA2025145C (en) 2001-04-17
US6288293B1 (en) 2001-09-11
CA2025145A1 (en) 1991-03-14
JPH03109336A (ja) 1991-05-09

Similar Documents

Publication Publication Date Title
ES2055254T3 (es) Procedimiento para la preparacion de 1,1,1,2-tetrafluoro-etano.
MX165549B (es) Procedimiento para la preparacion de 1, 1, 1, 2-tetrafluorometano
ES2074328T3 (es) Procedimiento para la preparacion de 1-cloro-1,1,3,3,3-pentafluoropropano y 1,1,1,3,3,3-hexafluoropropano.
DE2966986D1 (en) Reagent for the quantitative determination of water, and its use
AR247533A1 (es) Proceso para preparar una arcilla de silicato de cadenas con forma de columnas y proceso para preparar un polimero de olefina con un catalizador que comprende dicha arcilla en forma activada
NO168749C (no) Katalysator-forstadium
DE3560196D1 (en) Process for the preparation of 1,2,3-trichloro-2-methyl-1-propane
MX170575B (es) Mejoras relacionadas con la producción de extracto de lupulo isomerizado
BR8501665A (pt) Processo para a obtencao de aldeidos
MX9701632A (es) Procedimiento para obtener isoforona.
ES2140723T3 (es) Coproduccion de sulfato potasico y sulfato sodico.
DK0382067T3 (da) 3,7,11-Trimethyldodeca,2,4,6,10-tetraen-1-yl-phosphoniumsalte
ES2055233T3 (es) Procedimiento para preparar 1,1,1-trifluoro-2-cloro-etano.
SE7714709L (sv) Forbettrat forfarande for framstellning av alfa-l-aspartyl-l-fenylalaninmetylester
FI861697A (fi) Foerfarande foer framstaellning av fasta aluminiumkloridblandningar.
ES2178184T3 (es) Procedimiento para preparar unasal de isetionato de acilo graso.
IT8083321A0 (it) Procedimento per la formazione disolfato di magnesio a mezzo reazione a secco di scarto d'amianto e solfato di ammonio.
ES2150035T3 (es) Procedimiento para la preparacion de pentafluoroetano (r 125).
KR960004310A (ko) 트리플루오로 아세틸 플루오라이드의 제조방법
DE3277744D1 (en) Determination of nitrate in water
FI930812A (fi) Ny sulfatiserad diosminderivat
JPS5397009A (en) Toilet soap composition
BR9809833A (pt) Processo para a preparação de 3-isocromanoma.
ES508512A0 (es) "mejoras introducidas en un procedimiento para la conversion catalitica de acido isobutirico a acido metacrilico mediante reaccion de oxideshidrogenacion".
JPS52155690A (en) Preparation of desulfated mucopolysaccharide

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 417680

Country of ref document: ES