ATE121716T1 - Herstellung von difluoromethan. - Google Patents

Herstellung von difluoromethan.

Info

Publication number: ATE121716T1
Authority: AT; Austria
Prior art keywords: difluoromethane; production; hydrogen; catalyst; xycf2
Prior art date: 1991-04-11

Application number

AT92302785T

Other languages

English (en)

Inventor

Geoffrey James Moore

Jenny O'kell

Original Assignee

Ici Plc

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.)

1991-04-11

Filing date

1992-03-30

Publication date

1995-05-15

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10693066&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE121716(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1992-03-30 Application filed by Ici Plc filed Critical Ici Plc

1995-05-15 Application granted granted Critical

1995-05-15 Publication of ATE121716T1 publication Critical patent/ATE121716T1/de

Links

RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 title abstract 4
229910052739 hydrogen Inorganic materials 0.000 abstract 3
KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
239000003054 catalyst Substances 0.000 abstract 2
239000001257 hydrogen Substances 0.000 abstract 2
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 abstract 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
125000004429 atom Chemical group 0.000 abstract 1
229910052799 carbon Inorganic materials 0.000 abstract 1
150000001875 compounds Chemical class 0.000 abstract 1
125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
238000005984 hydrogenation reaction Methods 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1
229910052763 palladium Inorganic materials 0.000 abstract 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/23—Preparation of halogenated hydrocarbons by dehalogenation
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/389—Separation; Purification; Stabilisation; Use of additives by adsorption on solids
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Physical Or Chemical Processes And Apparatus (AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Catalysts (AREA)

AT92302785T 1991-04-11 1992-03-30 Herstellung von difluoromethan. ATE121716T1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB919107677A GB9107677D0 (en)	1991-04-11	1991-04-11	Chemical process

Publications (1)

Publication Number	Publication Date
ATE121716T1 true ATE121716T1 (de)	1995-05-15

Family

ID=10693066

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT92302785T ATE121716T1 (de)	1991-04-11	1992-03-30	Herstellung von difluoromethan.

Country Status (10)

Country	Link
US (1)	US5877360A (de)
EP (1)	EP0508660B2 (de)
JP (1)	JPH05279275A (de)
AT (1)	ATE121716T1 (de)
CA (1)	CA2065108A1 (de)
DE (1)	DE69202192T3 (de)
DK (1)	DK0508660T4 (de)
ES (1)	ES2071432T5 (de)
GB (2)	GB9107677D0 (de)
GR (1)	GR3015933T3 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3203655B2 (ja) *	1992-11-11	2001-08-27	ダイキン工業株式会社	ジフルオロメタンの製造方法
US5817896A (en) *	1993-03-26	1998-10-06	The University Court Of The University Of Dundee	Catalytic method of replacing halogen in halocarbons
GB9306334D0 (en) *	1993-03-26	1993-05-19	Univ Dundee	Catalyst
US6274781B1 (en) *	1993-11-01	2001-08-14	E. I. Du Pont De Nemours And Company	Production of dihalomethanes containing fluorine and azeotropes of dihalomethanes containing chlorine with HF
BE1007822A5 (fr) *	1993-12-10	1995-10-31	Solvay	Support pour un catalyseur d'hydrogenation, systeme catalytique comprenant ce support et procede d'hydrodechloration d'hydrocarbures chlorofluores.
AU1912295A (en) *	1994-03-11	1995-09-25	E.I. Du Pont De Nemours And Company	Process for converting chlorodifluoromethane and/or dichlorodifluoromethane
NL9401574A (nl) *	1994-09-27	1996-05-01	Univ Delft Tech	Difluormethaanbereiding.
FR2730729B1 (fr) *	1995-02-17	1997-04-30	Atochem Elf Sa	Procede de coproduction de difluoromethane et de 1,1,1,2-tetrafluoroethane
FR2736050B1 (fr)	1995-06-29	1997-08-01	Atochem Elf Sa	Procede de fabrication du difluoromethane
US5763708A (en)	1995-09-20	1998-06-09	Allied Signal Inc.	Process for the production of difluoromethane
GB9600430D0 (en) *	1996-01-10	1996-03-13	Ici Plc	Hydrogenation catalyst and process
US6624109B2 (en)	2001-10-23	2003-09-23	Council Of Scientific And Industrial Research	Process for the synthesis of highly active modified carbon supported palladium catalyst
EP1308206A1 (de) *	2001-10-29	2003-05-07	Council of Scientific and Industrial Research	Verfahren zur Herstellung eines mit aluminium modifizierten Palladium enthaltenden Katalysators auf Kohlenstoffträger
US6706658B2 (en) *	2001-12-21	2004-03-16	Engelhard Corporation	Catalyst for purification of aromatic acids
US7026521B1 (en)	2005-03-28	2006-04-11	Honeywell International Inc.	Methane and methyl chloride as selective reducing agent in the transformation of hydrochlorofluorocarbons or chlorofluorocarbons to hydrofluorocarbons
WO2009021987A1 (en)	2007-08-16	2009-02-19	Solvay (Société Anonyme)	Process for the preparation of esters of 4-fluorosubstituted 3-oxo-alcanoic acids
EP2588434B1 (de) *	2010-07-01	2016-11-02	Solvay Specialty Polymers Italy S.p.A.	Verfahren zur synthese von trifluorethylen
KR101287974B1 (ko) *	2011-07-07	2013-07-23	한국과학기술연구원	클로로디플루오로메탄으로부터 수첨탈염소반응을 통한 고수율의 디플루오로메탄의 제조방법
PL3241879T3 (pl)	2014-09-25	2020-12-14	Daikin Industries, Ltd.	Kompozycja zawierająca HFC i HFO

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA670338A (en) *		1963-09-10	Olstowski Franciszek	Preparation of fluoroform
DE1206424B (de) *	1964-05-27	1965-12-09	Hoechst Ag	Verfahren zum Abtrennen von Difluormethan aus Gemischen von Difluormethan und Tetrafluoraethylen
EP0347830B1 (de) *	1988-06-21	1994-01-26	Asahi Glass Company Ltd.	Verfahren zur Herstellung von 1,1,1,2-Tetrafluorethan
GB8828544D0 (en) *	1988-12-07	1989-01-11	Ici Plc	Chemical process
EP0449977B1 (de) *	1989-02-03	1994-06-15	E.I. Du Pont De Nemours And Company	Verfahren zur hydrogenolyse/dehydrohalogenierung

1991
- 1991-04-11 GB GB919107677A patent/GB9107677D0/en active Pending
1992
- 1992-03-30 DK DK92302785T patent/DK0508660T4/da active
- 1992-03-30 ES ES92302785T patent/ES2071432T5/es not_active Expired - Lifetime
- 1992-03-30 DE DE69202192T patent/DE69202192T3/de not_active Expired - Fee Related
- 1992-03-30 GB GB929206872A patent/GB9206872D0/en active Pending
- 1992-03-30 EP EP92302785A patent/EP0508660B2/de not_active Expired - Lifetime
- 1992-03-30 AT AT92302785T patent/ATE121716T1/de not_active IP Right Cessation
- 1992-04-03 CA CA002065108A patent/CA2065108A1/en not_active Abandoned
- 1992-04-09 JP JP4088797A patent/JPH05279275A/ja active Pending
1994
- 1994-12-09 US US08/352,448 patent/US5877360A/en not_active Expired - Fee Related
1995
- 1995-04-27 GR GR940403841T patent/GR3015933T3/el unknown

Also Published As

Publication number	Publication date
DK0508660T3 (da)	1995-07-10
ES2071432T5 (es)	1998-11-16
GB9206872D0 (en)	1992-05-13
EP0508660B1 (de)	1995-04-26
JPH05279275A (ja)	1993-10-26
DE69202192T2 (de)	1995-08-31
DE69202192D1 (de)	1995-06-01
CA2065108A1 (en)	1992-10-12
GR3015933T3 (en)	1995-07-31
DE69202192T3 (de)	1999-04-29
US5877360A (en)	1999-03-02
EP0508660A1 (de)	1992-10-14
GB9107677D0 (en)	1991-05-29
DK0508660T4 (da)	1999-06-14
ES2071432T3 (es)	1995-06-16
EP0508660B2 (de)	1998-09-23

Legal Events

Date	Code	Title
1995-11-15	UEP	Publication of translation of european patent specification
2000-05-15	UEP	Publication of translation of european patent specification
2001-12-15	REN	Ceased due to non-payment of the annual fee

Publication	Publication Date	Title
ATE121716T1 (de)	1995-05-15	Herstellung von difluoromethan.
MY104626A (en)	1994-04-30	A 1-phenylimidazole derivative and its production and use.
ES2041053T3 (es)	1993-11-01	Catalizadores para la polimerizacion de olefinas.
DK0620205T3 (da)	1998-10-26	Fremgangsmåde til fremstilling af eddikesyre
NO911442L (no)	1991-11-12	Fremgangsmaate for fremstilling av 1,1,1,2-tetrafluorkloretan og av pentafluoretan.
ES533560A0 (es)	1986-02-01	Un metodo catalitico mejorado para preparar peroxido de hidrogeno
DE69221673D1 (de)	1997-09-25	Herstellung von Bis(fluormethyl)äther und von Difluormethan
ES2068903T3 (es)	1995-05-01	Imidazoquinoxalinas y su preparacion.
ATE73768T1 (de)	1992-04-15	2,5,6,7-tetranor-18,18,19,19-tetradehydro-4,8inter-m-phenylene-pgi2-derivate.
FI882894A0 (fi)	1988-06-16	Menetelmä 2-kinoksalinoliyhdisteen valmistamiseksi
DE69421536D1 (de)	1999-12-09	Selektives dehalogenierungsverfahren
ATE64370T1 (de)	1991-06-15	Herstellung von diamino- und dialkylaminobenzoldiolen.
HUT50123A (en)	1989-12-28	Process for producing 3,5,6-trichloropyridin-2-ol and new intermediars
EP1020421A4 (de)	2002-01-02	Verfahren zur herstellung von 1,2-propandiol
MY101540A (en)	1991-12-17	Benzoylurea compounds and their production and use.
ATE113027T1 (de)	1994-11-15	Optisch aktive 7-substituierte-3,5- difunktionalisierte 6-heptensäureester.
ES464847A1 (es)	1979-01-01	Procedimiento para la preparacion de un 1,3,5-triazapenta-1,4-dieno
NO985775D0 (no)	1998-12-10	FremgangsmÕte til fremstilling av aminocyanacetamid
BR9200695A (pt)	1992-11-10	Semicarbazidas,processo para sua preparacao,emprego e material de fibras
IL82503A0 (en)	1987-11-30	Process for the promination of biphenols
ATE114150T1 (de)	1994-12-15	Verfahren zur herstellung von 1,1,1,2- tetraflourethan.
ATE247616T1 (de)	2003-09-15	Verfahren zur herstellung von trans-2-bromoindan- 1-ol
PT90770A (pt)	1991-02-08	Processo para a preparacao de um derivado de nicotinamida
ES8305373A1 (es)	1983-04-01	"procedimiento para la preparacion de nuevos derivados de acidos 2-amino-carboxilicos".
TW326043B (en)	1998-02-01	Method for preparing coumarin and derivatives thereof