ES2057526T3 - Catalizadores de fluoruro de aluminio y su uso en un procedimiento de clorofluoracion para la preparacion de 1,1-dicloro-1,2,2,2-tetrafluoroetano. - Google Patents

Catalizadores de fluoruro de aluminio y su uso en un procedimiento de clorofluoracion para la preparacion de 1,1-dicloro-1,2,2,2-tetrafluoroetano.

Info

Publication number
ES2057526T3
ES2057526T3 ES90901441T ES90901441T ES2057526T3 ES 2057526 T3 ES2057526 T3 ES 2057526T3 ES 90901441 T ES90901441 T ES 90901441T ES 90901441 T ES90901441 T ES 90901441T ES 2057526 T3 ES2057526 T3 ES 2057526T3
Authority
ES
Spain
Prior art keywords
tetrafluoroethane
chlorofluoration
dichloro
aluminum fluoride
procedure
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
ES90901441T
Other languages
English (en)
Inventor
Leo Ernest Manzer
Frederick Nye Tebbe
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of ES2057526T3 publication Critical patent/ES2057526T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/35—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction
    • C07C17/358—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction by isomerisation

Landscapes

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

Abstract

SE PRESENTA UN COMPUESTO CATALIZADOR QUE CONSTA ESENCIALMENTE DE FLUORURO DE ALUMINIO PREPARADO MEDIANTE LA REACCION DE HIDROXIDO DE ALUMINIO Y HF. TAMBIEN SE HA DESCUBIERTO UN PROCESO PARA PREPARAR 1, 1-DICLORO-1, 2, 2, 2 -TETRAFLUOROETANO MEDIANTE CLOROFLUORACION QUE COMPRENDE EL PASO DE PONER EN CONTACTO UNA MEZCLA GASEOSA QUE COMPRENDE AL MENOS UN TETRAHALOETILENO QUE TENGA LA FORMULA C SUB 2 CL SUB 4-X F SUB X, EN LA QUE X ES UN ENTERO ENTRE 0 Y 3 Y CL SUB 2 Y HF JUNTO CON DICHO COMPUESTO CATALIZADOR A UNA TEMPERATURA ELEVADA; Y UN PROCESO PARA PRODUCIR 2-CLORO-1, 1, 1, 2 -TETRAFLUOROETANO Y/O 1, 1, 1, 2-TETRAFLUOROTETANO MEDIANTE LA HIDRODECLORACION DE 1, 1-DICLORO-1, 2, 2, 2-TETRAFLUOROETANO PREPARADO MEDIANTE DICHA CLOROFLUORACION.
ES90901441T 1988-12-28 1989-12-21 Catalizadores de fluoruro de aluminio y su uso en un procedimiento de clorofluoracion para la preparacion de 1,1-dicloro-1,2,2,2-tetrafluoroetano. Expired - Lifetime ES2057526T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/291,100 US4902838A (en) 1988-12-28 1988-12-28 Isomerization of saturated fluorohydrocarbons

Publications (1)

Publication Number Publication Date
ES2057526T3 true ES2057526T3 (es) 1994-10-16

Family

ID=23118840

Family Applications (3)

Application Number Title Priority Date Filing Date
ES90901439T Expired - Lifetime ES2058888T3 (es) 1988-12-28 1989-12-21 Procedimientos que utilizan composiciones de catalizador de fluoruro de aluminio para preparar haloetanos que contienen fluor.
ES90901441T Expired - Lifetime ES2057526T3 (es) 1988-12-28 1989-12-21 Catalizadores de fluoruro de aluminio y su uso en un procedimiento de clorofluoracion para la preparacion de 1,1-dicloro-1,2,2,2-tetrafluoroetano.
ES89313599T Expired - Lifetime ES2055114T3 (es) 1988-12-28 1989-12-27 Isomerizacion de hidrocarburos fluorados saturados.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES90901439T Expired - Lifetime ES2058888T3 (es) 1988-12-28 1989-12-21 Procedimientos que utilizan composiciones de catalizador de fluoruro de aluminio para preparar haloetanos que contienen fluor.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES89313599T Expired - Lifetime ES2055114T3 (es) 1988-12-28 1989-12-27 Isomerizacion de hidrocarburos fluorados saturados.

Country Status (15)

Country Link
US (1) US4902838A (es)
EP (3) EP0451199B1 (es)
JP (3) JPH04502464A (es)
CN (1) CN1020589C (es)
AR (1) AR248265A1 (es)
AT (3) ATE111881T1 (es)
AU (3) AU634514B2 (es)
BR (3) BR8907859A (es)
CA (1) CA2006212A1 (es)
DE (3) DE68918463T2 (es)
ES (3) ES2058888T3 (es)
MX (1) MX166485B (es)
RU (1) RU1811523C (es)
WO (2) WO1990007481A1 (es)
ZA (1) ZA899915B (es)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8824571D0 (en) * 1988-10-20 1988-11-23 Ici Plc Chemical process
US4902838A (en) * 1988-12-28 1990-02-20 E. I. Du Pont De Nemours And Company Isomerization of saturated fluorohydrocarbons
CA2012792A1 (en) * 1989-06-14 1990-12-14 Robert C. Zawalski Process for preparing chlorofluorocarbons via an in situ generated activated aluminum trihalide catalyst and products resulting therefrom
US5157171A (en) * 1989-10-16 1992-10-20 E. I. Du Pont De Nemours And Company Process for chlorofluoropropanes
JPH03284637A (ja) * 1990-03-31 1991-12-16 Du Pont Mitsui Fluorochem Co Ltd ハイドロクロロフルオロカーボンの異性化方法
US5030372A (en) * 1990-07-31 1991-07-09 E. I. Du Pont De Nemours And Company Catalytic equilibration to improve the relative yield of selected halocarbons
US5250213A (en) * 1991-05-06 1993-10-05 E. I. Du Pont De Nemours And Company 1,1,1,2,2,3,3,4,4,5,6-undecafluorohexane and use thereof in compositions and processes for cleaning
US5243106A (en) * 1991-06-03 1993-09-07 E. I. Du Pont De Nemours And Company Processes using aluminum fluoride catalyst compositions for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane
US5243108A (en) * 1991-06-03 1993-09-07 E. I. Du Pont De Nemours And Company Aluminum fluoride catalyst compositions and use thereof in a chlorofluorination process for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane
US5268122A (en) * 1991-08-28 1993-12-07 E. I. Du Pont De Nemours And Company Gem-dihydropolyfluoroalkanes and monohydropolyfluoroalkenes, processes for their production, and use of gem-dihydropolyfluoroalkanes in cleaning compositions
IT1251957B (it) * 1991-10-18 1995-05-27 Ausimont Spa Procedimento per isomerizzare 1,1,2-trifluoro-1,2-dicloroetano a 1,1,1- trifluoro-2,2,-dicloroetano
US5345017A (en) * 1992-12-08 1994-09-06 E. I. Du Pont De Nemours And Company Process for reducing the fluorine content of halocarbons
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
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
US5274190A (en) * 1993-05-24 1993-12-28 E. I. Du Pont De Nemours And Company Process for the manufacture of linear hydrofluorocarbons containing end group hydrogen substituents
US5274189A (en) * 1993-05-24 1993-12-28 E. I. Du Pont De Nemours And Company Process for the manufacture of linear hydrofluorocarbons containing end group hydrogen substituents
US5396000A (en) * 1993-05-24 1995-03-07 E. I. Du Pont De Nemours And Company Process for the manufacture of 1,1,1,2,3,-pentafluoropropane
GB9324814D0 (en) * 1993-12-03 1994-01-19 Ici Plc Production of 1,1,1,2-tetrafluoroethane
US5563304A (en) * 1994-05-26 1996-10-08 E. I. Du Pont De Nemours And Company Production of 1,2-dihydro and 2,2-dihydro hexafluoropropanes and azeotropes thereof with HF
US5559069A (en) * 1994-05-26 1996-09-24 E. I. Du Pont De Nemours And Company Catalysts for halogenated hydrocarbon processing, their precursors and their preparation and use
US5847242A (en) * 1995-05-19 1998-12-08 E. I. Du Pont De Nemours And Company Catalysts for halogenated hydrocarbon processing, their precursors and their preparation and use
WO1997019750A1 (en) * 1995-11-29 1997-06-05 E.I. Du Pont De Nemours And Company Catalytic halogenated hydrocarbon processing and ruthenium catalysts for use therein
FR2758556B1 (fr) * 1997-01-17 1999-02-19 Atochem Elf Sa Isomerisation d'hydrofluorocarbures
FR2759093B1 (fr) 1997-02-05 1999-03-05 Ceca Sa Polymethylenepolyamine dipropionamides comme inhibiteurs non ecotoxiques de la corrosion carbonique du fer
US6365544B2 (en) 1998-05-22 2002-04-02 Conoco Inc. Fischer-Tropsch processes and catalysts using fluorided alumina supports
US6333294B1 (en) 1998-05-22 2001-12-25 Conoco Inc. Fischer-tropsch processes and catalysts with promoters
US6472574B2 (en) 1999-12-10 2002-10-29 E. I. Du Pont Nemours And Company Production of 1,2-dihydro and 2,2-dihydro hexafluoropropanes and azeotropes thereof with HF
US6333440B1 (en) 2000-04-07 2001-12-25 E. I. Du Pont De Nemours And Company Process for perfluorocyclobutane purification
US7897823B2 (en) * 2004-10-29 2011-03-01 E. I. Du Pont De Nemours And Company Process for production of azeotrope compositions comprising hydrofluoroolefin and hydrogen fluoride and uses of said azeotrope compositions in separation processes
US7476771B2 (en) 2005-11-01 2009-01-13 E.I. Du Pont De Nemours + Company Azeotrope compositions comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof
EP2001828B1 (en) * 2006-03-31 2012-08-22 E.I. Du Pont De Nemours And Company Coproduction of hydrofluoroolefins
RU2445302C2 (ru) 2006-06-27 2012-03-20 Е.И. Дюпон Де Немур Энд Компани Способы получения тетрафторпропена
CN101578252B (zh) * 2006-09-05 2013-11-27 纳幕尔杜邦公司 1,2,3,3,3-五氟丙烯生产方法
TW200920721A (en) * 2007-07-13 2009-05-16 Solvay Fluor Gmbh Preparation of halogen and hydrogen containing alkenes over metal fluoride catalysts
FR2929272B1 (fr) * 2008-03-28 2010-04-09 Arkema France Procede pour la preparation du 2,3,3,3-tetrafluoro-1-propene
CA3093427A1 (en) 2008-05-07 2009-11-12 The Chemours Company Fc, Llc Compositions comprising 1,1,1,2,3-pentafluoropropane or 2,3,3,3-tetrafluoropropene
ES2547871T3 (es) 2009-12-23 2015-10-09 Arkema France Fluoración catalítica en fase gaseosa de 1230xa para dar 1234yf
PL2516366T3 (pl) 2009-12-23 2017-04-28 Arkema France Katalityczne fluorowanie 1233xf do 1234yf w fazie gazowej
WO2011077193A1 (en) 2009-12-23 2011-06-30 Arkema France Catalytic gas phase fluorination of 243db to 1234yf
WO2011077191A1 (en) 2009-12-23 2011-06-30 Arkema France Catalytic gas phase fluorination of 1230xa to 1234yf
WO2012052797A1 (en) 2010-10-22 2012-04-26 Arkema France Process for the preparation of 2,3,3,3 tetrafluoropropene
MX345769B (es) 2010-10-22 2017-02-14 Arkema France Proceso para la fabricación de 2-cloro-3,3,3-trifluoropropeno por fluoración en fase gas de pentacloropropano.
CN107602342B (zh) 2011-01-21 2024-05-24 阿克马法国公司 催化气相氟化
EP3257832B2 (en) 2011-01-21 2022-10-19 Arkema France Catalytic gas phase fluorination
CN111848330A (zh) 2011-01-21 2020-10-30 阿克马法国公司 通过五氯丙烷的气相氟化制造2,3,3,3-四氟丙烯的方法
US9334208B2 (en) 2011-12-14 2016-05-10 Arkema France Process for the preparation of 2,3,3,3 tetrafluoropropene
FR2986525B1 (fr) 2012-02-03 2014-02-14 Arkema France Procede de production de 2,3,3,3-tetrafluoropropene
US8822739B2 (en) 2012-03-22 2014-09-02 E I Du Pont De Nemours And Company Catalytic isomerization of 2,3,3,3-tetrafluoropropene
CN102994052B (zh) * 2012-11-30 2015-09-09 徐超 一种空调用制冷剂
FR3012137B1 (fr) 2013-10-17 2016-09-16 Arkema France Procede de production de composes fluores
FR3013606B1 (fr) 2013-11-28 2015-11-13 Arkema France Procede de purification d'acide chlorhydrique
FR3023286B1 (fr) 2014-07-02 2018-02-16 Arkema France Procede de fabrication de tetrafluoropropene
FR3027303B1 (fr) 2014-10-16 2016-10-07 Arkema France Compositions a base de 1,1,1,2,3-pentachloropropane
FR3027304B1 (fr) 2014-10-16 2018-02-23 Arkema France Compositions a base de 1,1,1,3,3-pentachloropropane
CN107001196B (zh) 2014-12-11 2020-05-26 阿科玛法国公司 用于制备l-氯-2,2-二氟乙烷的方法
FR3046162B1 (fr) 2015-12-23 2019-12-13 Arkema France Procede de production et de purification du 2,3,3,3-tetrafluoro-1-propene.
FR3046161B1 (fr) 2015-12-23 2019-12-13 Arkema France Procede de production et de purification du 2,3,3,3-tetrafluoro-1-propene.
FR3046165B1 (fr) 2015-12-23 2019-12-13 Arkema France Procede de production et de purification du 2,3,3,3-tetrafluoro-1-propene
FR3046160B1 (fr) 2015-12-23 2019-12-13 Arkema France Procede de preparation du 2,3,3,3-tetrafluoro-1-propene et recyclage du 2-chloro-3,3,3-trifluoropropene exempt d'impuretes.
FR3048429B1 (fr) 2016-03-04 2019-09-27 Arkema France Composition azeotropique ou quasi-azeotropique comprenant de la trifluoropropyne
KR20190008221A (ko) 2016-04-13 2019-01-23 아르끄마 프랑스 2,3,3,3-테트라플루오로프로펜의 제조 방법
FR3051469B1 (fr) 2016-05-19 2018-05-11 Arkema France Procede de fabrication de tetrafluoropropene.
FR3051468B1 (fr) 2016-05-19 2019-07-26 Arkema France Procede de fabrication de tetrafluoropropene.
EP3536681B1 (en) * 2016-11-01 2020-12-09 Agc Inc. Method for isomerizing organic compound, and method for producing isomer of organic compound
FR3064629B1 (fr) 2017-03-28 2019-04-05 Arkema France Procede de production et de purification du 2,3,3,3-tetrafluoro-1-propene
FR3064622B1 (fr) 2017-03-28 2019-03-22 Arkema France Procede de recuperation d'acide fluorhydrique
FR3064626B1 (fr) 2017-03-28 2020-02-21 Arkema France Procede de production du 2,3,3,3-tetrafluoropropene.
FR3064627B1 (fr) 2017-03-28 2020-02-21 Arkema France Procede de production du 2,3,3,3-tetrafluoropropene.
FR3064628B1 (fr) 2017-03-28 2019-04-05 Arkema France Procede de production et de purification du 2,3,3,3-tetrafluoropropene
FR3065725B1 (fr) 2017-04-28 2020-01-24 Arkema France Procede de purification du 1,1,1,2,2-pentafluoropropane.
FR3065726B1 (fr) 2017-04-28 2019-04-19 Arkema France Procede de production et de purification du 2,3,3,3-tetrafluoropropene.
FR3078700B1 (fr) 2018-03-07 2020-07-10 Arkema France Procede de production du 2,3,3,3-tetrafluoropropene
FR3078699B1 (fr) 2018-03-07 2020-02-21 Arkema France Procede de production du 2,3,3,3-tetrafluoropropene
FR3078698B1 (fr) 2018-03-07 2020-02-21 Arkema France Procede de production du 2-chloro-3,3,3-trifluoropropene
WO2025160054A2 (en) 2024-01-22 2025-07-31 The Chemours Company Fc, Llc Synthesis of 1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598411A (en) * 1948-11-23 1952-05-27 Atomic Energy Commission Rearrangement of saturated halocarbons
US2748177A (en) * 1951-08-03 1956-05-29 Allied Chem & Dye Corp Fluorination
BE569580A (es) * 1957-07-18
NL263002A (es) * 1960-03-30 1900-01-01
FR1453510A (fr) * 1965-08-13 1966-06-03 Electro Chimie Soc D Purification du dichlorotétrafluoroéthane
DE1668346C3 (de) * 1967-12-06 1973-10-25 Kali-Chemie Ag, 3000 Hannover Verfahren zur Herstellung von 1,1,1 Trifluortnchlorathan durch Um lagerung
DK126161B (da) * 1968-07-25 1973-06-18 Montedison Spa Katalysator til fremstilling af chlorflourerede ethaner, der har høj symmetrigrad med hensyn til fordelingen af flouratomerne.
NL173393C (nl) * 1968-10-10 1984-01-16 Montedison Spa Werkwijze voor het bereiden van volledig ge(chloor)fluoreerd ethaan met symmetrische verdeling van de fluoratomen over de koolstofatomen.
DE2245372A1 (de) * 1972-09-15 1974-03-21 Biocontrol Arzneimittel Gmbh Verfahren zur herstellung von monotopischen di- und trifluorpolyhalogenaethanen
JPS53121710A (en) * 1977-03-30 1978-10-24 Daikin Ind Ltd Preparation of isomerized chlorofluorohydrocarbon containing hydrogne
GB1578933A (en) * 1977-05-24 1980-11-12 Ici Ltd Manufacture of halogenated hydrocarbons
FR2498591A1 (fr) * 1980-12-31 1982-07-30 Ugine Kuhlmann Procede continu de preparation en phase gazeuse du trichlorotrifluorethane, du dichlorotetrafluorethane et du monochloropentafluorethane en proportions controlees
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
IN170774B (es) * 1988-05-23 1992-05-16 Du Pont
US4902838A (en) * 1988-12-28 1990-02-20 E. I. Du Pont De Nemours And Company Isomerization of saturated fluorohydrocarbons

Also Published As

Publication number Publication date
BR8906778A (pt) 1990-09-18
BR8907858A (pt) 1991-10-22
RU1811523C (ru) 1993-04-23
AU634514B2 (en) 1993-02-25
DE68916974D1 (de) 1994-08-25
DE68906524T2 (de) 1993-11-25
AR248265A1 (es) 1995-07-12
CN1044088A (zh) 1990-07-25
ATE89255T1 (de) 1993-05-15
ES2055114T3 (es) 1994-08-16
EP0376686B1 (en) 1993-05-12
CA2006212A1 (en) 1990-06-28
AU621439B2 (en) 1992-03-12
WO1990007482A1 (en) 1990-07-12
AU4731589A (en) 1990-07-05
US4902838A (en) 1990-02-20
ATE108759T1 (de) 1994-08-15
EP0451199A1 (en) 1991-10-16
EP0376686A1 (en) 1990-07-04
BR8907859A (pt) 1991-12-17
EP0451199B1 (en) 1994-09-21
JP2669701B2 (ja) 1997-10-29
EP0452363B1 (en) 1994-07-20
JPH04502464A (ja) 1992-05-07
EP0452363A1 (en) 1991-10-23
WO1990007481A1 (en) 1990-07-12
AU4840590A (en) 1990-08-01
AU4823690A (en) 1990-08-01
AU628912B2 (en) 1992-09-24
ZA899915B (en) 1991-08-28
ATE111881T1 (de) 1994-10-15
DE68918463T2 (de) 1995-02-23
JPH02231440A (ja) 1990-09-13
JPH04502471A (ja) 1992-05-07
ES2058888T3 (es) 1994-11-01
MX166485B (es) 1993-01-12
DE68916974T2 (de) 1994-12-22
CN1020589C (zh) 1993-05-12
DE68906524D1 (de) 1993-06-17
DE68918463D1 (de) 1994-10-27

Similar Documents

Publication Publication Date Title
ES2057526T3 (es) Catalizadores de fluoruro de aluminio y su uso en un procedimiento de clorofluoracion para la preparacion de 1,1-dicloro-1,2,2,2-tetrafluoroetano.
ES2031188T3 (es) Procedimiento para la produccion de poliisocianatos que contienen grupos alofanato.
ES2057090T3 (es) Un procedimiento para la preparacion de sulfonatos de olefinas internas.
ES2134225T3 (es) Procedimiento para la polimerizacion en fase gaseosa de olefinas.
IT8026755A0 (it) Procedimento e catalizzatore per la preparazione di una miscela gassosa avente un alto contenuto di metano.
MX167991B (es) Procedimiento para la preparacion de (2,2)-paraciclofano
ES8101537A1 (es) Un procedimiento para preparar nuevas fenetanolaminas
ES8106740A1 (es) Procedimiento para polimerizar alfa-olefinas
AR247873A1 (es) Procedimiento catalitico para producir ccl3cf3
ES2124434T3 (es) Produccion de dihalometanos que comprenden fluor y azeotropos de dihalometanos que contienen cloro con hf.
ES478177A1 (es) Procedimiento para la polimerizacion estereoespecifica de alfa-olefinas.
ES2106138T3 (es) Produccion de bis(fluorometil)eter y difluorometano.
ES2083789T3 (es) Procedimiento para la obtencion de hexafluorobutano y productos intermedios accesibles con este.
MX174191B (es) Procedimiento para la preparacion de 1,1-dicloro-1 fluoroetano
BR8903707A (pt) Processo para a preparacao de 1,1-dicloro-1-fluoretano
ES485432A1 (es) Procedimiento de fabricacion de nitroparafinas por nitracionde etano
AR000393A1 (es) Procedimiento para la preparación de un producto que contiene isobutano/isohexano
ES2062402T3 (es) Procedimiento para la preparacion de 1,1-diclorotetrafluoroetano.
ES2101938T3 (es) Procedimiento para la preparacion del 1,1,1,2-tetrafluoretano.
ES2099315T3 (es) Procedimiento para la preparacion de fluoro-hidrocarburos.
ES2090842T3 (es) Catalizador solido de acido fosforico y procedimiento para su preparacion y para su uso.
ATE41650T1 (de) Verfahren zur synthese von chlorpentafluorethan aus dichlortetrafluorethan und fluorwasserstoff.
JPS51136467A (en) Re-calibration device of precision pressure gauge
MX169829B (es) Procedimiento para preparar un compuesto de azufre gaseoso
ES2075000T3 (es) Procedimiento para la preparacion de carbinoles terciarios que contienen un sustituyente aminico.

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 452363

Country of ref document: ES