IT954827B - Procedimento di fabbricazione dell i i difluoroetano - Google Patents

Procedimento di fabbricazione dell i i difluoroetano

Info

Publication number
IT954827B
IT954827B IT22640/72A IT2264072A IT954827B IT 954827 B IT954827 B IT 954827B IT 22640/72 A IT22640/72 A IT 22640/72A IT 2264072 A IT2264072 A IT 2264072A IT 954827 B IT954827 B IT 954827B
Authority
IT
Italy
Prior art keywords
difluoroethane
procedure
manufacturing
Prior art date
Application number
IT22640/72A
Other languages
English (en)
Original Assignee
Solvay
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 Solvay filed Critical Solvay
Application granted granted Critical
Publication of IT954827B publication Critical patent/IT954827B/it

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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • 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
    • 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
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/08—Halides
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/08—Halides
    • B01J27/10—Chlorides
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/22—Halogenating
    • B01J37/26—Fluorinating
    • 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
    • C07C17/21—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms with simultaneous increase of the number of halogen atoms
IT22640/72A 1971-04-28 1972-03-30 Procedimento di fabbricazione dell i i difluoroetano IT954827B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE102762 1971-04-28

Publications (1)

Publication Number Publication Date
IT954827B true IT954827B (it) 1973-09-15

Family

ID=3841510

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22640/72A IT954827B (it) 1971-04-28 1972-03-30 Procedimento di fabbricazione dell i i difluoroetano

Country Status (8)

Country Link
US (1) US3862995A (it)
BE (1) BE766395A (it)
DE (1) DE2215019A1 (it)
ES (1) ES401416A1 (it)
FR (1) FR2134381B1 (it)
GB (1) GB1343001A (it)
IT (1) IT954827B (it)
NL (1) NL7204766A (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258225A (en) * 1977-08-15 1981-03-24 E. I. Du Pont De Nemours And Company TaF5 and NbF5 as fluorination catalysts
US4147733A (en) * 1978-05-22 1979-04-03 The Dow Chemical Company Fluorination of chlorinated hydrocarbons
US4818513A (en) * 1987-12-21 1989-04-04 Ppg Industries, Inc. Separation of hydrogen fluoride from 1,1-difluoroethene
US4827055A (en) * 1988-03-07 1989-05-02 Pennwalt Corporation Process for preparing vinylidene fluoride by the direct fluorination of vinylidene chloride
US4937398A (en) * 1988-12-27 1990-06-26 Allied-Signal Inc. Process for the preparation of fluorinated alkanes from alkenes
IL96245A0 (en) * 1989-11-06 1991-08-16 Rhone Poulenc Chimie Process for the preparation of lewis acid-based catalyst fluorinated aromatic derivatives
US4988434A (en) * 1989-12-13 1991-01-29 Exxon Research And Engineering Company Removal of metallic contaminants from a hydrocarbonaceous liquid
GB9105166D0 (en) * 1991-03-12 1991-04-24 Ici Plc Chemical process
GB9105167D0 (en) * 1991-03-12 1991-04-24 Ici Plc Chemical process
BE1006432A3 (fr) * 1992-12-02 1994-08-23 Solvay Procede de purification de 1,1-difluoroethane.
FR2713634B1 (fr) * 1993-12-09 1996-01-19 Atochem Elf Sa Fluoration catalytique d'hydrocarbures halogènes en phase gazeuse.
US5789633A (en) * 1995-06-06 1998-08-04 E. I. Du Pont De Nemours And Company Azeotropic or azeotrope-like compositions of hydrofluoric acid with dihaloethanes
US5714650A (en) * 1995-06-07 1998-02-03 E. I. Du Pont De Nemours And Company Continuous manufacture of 1,1-difluoroethane
US5672788A (en) * 1995-06-07 1997-09-30 E. I. Du Pont De Nemours And Company Two-step process for manufacturing 1,1-difluoroethane
US5763708A (en) 1995-09-20 1998-06-09 Allied Signal Inc. Process for the production of difluoromethane
US5866729A (en) * 1997-01-02 1999-02-02 E. I. Du Pont De Nemours And Company Manufacture of 1, 1-difluoroethane
US5777185A (en) * 1997-09-09 1998-07-07 Laroche Industries Inc. Production of organic fluorine compounds
FR2771737B1 (fr) 1997-12-01 2000-02-04 Solvay Procedes de production et d'epuration de 1,1-difluoroethane et produit ainsi obtenu
KR100383216B1 (ko) * 2000-12-08 2003-05-12 한국과학기술연구원 1,1-디플루오로에탄 제조용 촉매 및 1,1-디플루오로에탄제조방법
WO2005044765A2 (en) * 2003-11-10 2005-05-19 Showa Denko K.K. Purification method of, 1, 1-difluoroethane
US7112708B2 (en) 2004-04-01 2006-09-26 Honeywell International Inc. Method of making difluoromethane, 1,1,1-trifluoroethane and 1,1-difluoroethane
GB202100874D0 (en) * 2021-01-22 2021-03-10 Mexichem Fluor Sa De Cv Process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1996115A (en) * 1931-05-29 1935-04-02 Du Pont Alkyl halide synthesis
US2005707A (en) * 1932-08-31 1935-06-18 Kinetic Chemicals Inc Production of organic fluorine compounds
GB823519A (en) * 1957-09-25 1959-11-11 Dow Corning A process for the preparation of fluorinated olefins

Also Published As

Publication number Publication date
ES401416A1 (es) 1975-02-16
DE2215019A1 (de) 1972-11-02
FR2134381A1 (it) 1972-12-08
US3862995A (en) 1975-01-28
BE766395A (fr) 1971-10-28
GB1343001A (en) 1974-01-10
NL7204766A (it) 1972-10-31
FR2134381B1 (it) 1976-10-29

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