DE69623781T2 - Distillationsverfahren zum Rückgewinnen von HFC-125 und HFC-32 - Google Patents

Distillationsverfahren zum Rückgewinnen von HFC-125 und HFC-32

Info

Publication number
DE69623781T2
DE69623781T2 DE69623781T DE69623781T DE69623781T2 DE 69623781 T2 DE69623781 T2 DE 69623781T2 DE 69623781 T DE69623781 T DE 69623781T DE 69623781 T DE69623781 T DE 69623781T DE 69623781 T2 DE69623781 T2 DE 69623781T2
Authority
DE
Germany
Prior art keywords
hfc
recovering
distillation process
distillation
recovering hfc
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 - Fee Related
Application number
DE69623781T
Other languages
English (en)
Other versions
DE69623781D1 (de
Inventor
Newton Miller
Asher Mahler
Joseph Nappa
Andrew Casey
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21694663&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69623781(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of DE69623781D1 publication Critical patent/DE69623781D1/de
Application granted granted Critical
Publication of DE69623781T2 publication Critical patent/DE69623781T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C07C17/386—Separation; Purification; Stabilisation; Use of additives by distillation with auxiliary compounds
    • 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
    • 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
    • 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
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • C07C19/10—Acyclic saturated compounds containing halogen atoms containing fluorine and chlorine
    • C07C19/12—Acyclic saturated compounds containing halogen atoms containing fluorine and chlorine having two carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE69623781T 1995-07-14 1996-07-12 Distillationsverfahren zum Rückgewinnen von HFC-125 und HFC-32 Expired - Fee Related DE69623781T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US115695P 1995-07-14 1995-07-14
PCT/US1996/011638 WO1997003936A1 (en) 1995-07-14 1996-07-12 Distillation processes for removing cfc-115 and hydrofluoric acid from hfc-125

Publications (2)

Publication Number Publication Date
DE69623781D1 DE69623781D1 (de) 2002-10-24
DE69623781T2 true DE69623781T2 (de) 2003-08-14

Family

ID=21694663

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69632418T Expired - Fee Related DE69632418T2 (de) 1995-07-14 1996-07-12 Verfahren zur Trennung von HFC-32 und HFC-125
DE69623781T Expired - Fee Related DE69623781T2 (de) 1995-07-14 1996-07-12 Distillationsverfahren zum Rückgewinnen von HFC-125 und HFC-32

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69632418T Expired - Fee Related DE69632418T2 (de) 1995-07-14 1996-07-12 Verfahren zur Trennung von HFC-32 und HFC-125

Country Status (12)

Country Link
US (1) US6156161A (de)
EP (1) EP0840719B1 (de)
JP (2) JPH11509209A (de)
KR (1) KR19990028943A (de)
CN (1) CN1084720C (de)
AU (1) AU6457796A (de)
BR (1) BR9609821A (de)
CA (1) CA2226673A1 (de)
DE (2) DE69632418T2 (de)
ES (2) ES2219225T3 (de)
MX (1) MX9800409A (de)
WO (1) WO1997003936A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998015511A1 (en) * 1996-10-10 1998-04-16 Alliedsignal Inc. Process for separating pentafluoroethane and chloropentafluoroethane
JP3669400B2 (ja) 1997-06-13 2005-07-06 ダイキン工業株式会社 パーフルオロアルキルアイオダイドとフッ化水素の共沸混合物、及びパーフルオロアルキルアイオダイドの分離精製方法
US7371309B2 (en) * 1997-08-12 2008-05-13 E. I. Du Pont De Nemours And Company Purification of difluoromethane by extractive distillation
DE69819191T2 (de) * 1997-08-21 2004-07-29 Daikin Industries, Ltd. Verfahren zur herstellung von pentafluorethan
EP1027313A1 (de) * 1997-10-17 2000-08-16 E.I. Du Pont De Nemours And Company Abtrennung von 1,1,1,3,3-pentafluorpropan von fluorwasserstoff
US7189311B2 (en) * 2001-03-23 2007-03-13 Honeywell International Inc. Purification of difluoromethane
US6605193B2 (en) 2001-04-25 2003-08-12 Atofina Chemicals, Inc. Recovery of HFC-32
JPWO2003015083A1 (ja) * 2001-08-03 2004-12-02 松下電器産業株式会社 カードリーダ
US7699962B2 (en) * 2004-06-23 2010-04-20 Exxonmobil Chemical Patents Inc. Processes utilizing extractive distillation
US7402636B1 (en) 2007-03-23 2008-07-22 Exxonmobil Chemical Patents Inc Method and apparatus for decreasing polymer deposition
US7893176B2 (en) * 2007-03-23 2011-02-22 Exxonmobil Chemical Patents Inc. Polydispersity-controlled isoolefin polymerization with polymorphogenates
DE102007044916A1 (de) 2007-09-19 2009-04-23 Bionorica Ag Kosmetische oder dermatologische Zusammensetzung zur topischen Verwendung
US20100119460A1 (en) * 2008-11-11 2010-05-13 Honeywell International Inc. Azeotrope-Like Compositions Of 2,3,3,3-Tetrafluoropropene And 3,3,3-Trifluoropropene
PT3241878T (pt) 2014-09-25 2020-09-03 Daikin Ind Ltd Composição compreendendo hfc e hfo
JP6613877B2 (ja) * 2015-01-07 2019-12-04 Ａｇｃ株式会社 共沸様組成物および精製された含フッ素化合物の製造方法
WO2021076480A1 (en) * 2019-10-15 2021-04-22 University Of Kansas Process for separating components of azeotropic mixtures using ionic liquids
FR3115036B1 (fr) 2020-10-12 2022-09-30 Dehon Sas Procédé de séparation des molécules d’un mélange de fluides comprenant au moins un composant fluoré

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732150A (en) * 1971-10-22 1973-05-08 Phillips Petroleum Co Process for separating halogenated hydrocarbons by azeotropic distillation with ammonia
US4843181A (en) * 1987-10-22 1989-06-27 E. I. Du Pont De Nemours And Company Process for the manufacture of 1,1,1-trifluorodichloroethane and 1,1,1,2-tetrafluorochloroethane
US5087329A (en) * 1991-05-16 1992-02-11 E. I. Du Pont De Nemours And Company Process for separating pentafluoroethane from a mixture of halogenated hydrocarbons containing chloropentafluoroethane
IT1252659B (it) * 1991-12-23 1995-06-20 Ausimont Spa Procedimento per la depurazione dell'1,1,1-trifluoro-2-fluoroetano e dell'1,1,1-trifluoro-2,2-dicloroetano
US5346595A (en) * 1993-02-23 1994-09-13 Alliedsignal Inc. Process for the purification of a pentafluoroethane azeotrope
FR2701943B1 (fr) * 1993-02-24 1995-05-12 Atochem Elf Sa Purification du pentafluoroéthane.
AU3974293A (en) * 1993-04-06 1994-10-24 E.I. Du Pont De Nemours And Company Separation of chloropentafluoroethane from pentafluoroethane
US5421964A (en) * 1993-04-30 1995-06-06 E. I. Du Pont De Nemours And Company Process for separating HCl and halocarbons
ES2156939T3 (es) * 1994-04-08 2001-08-01 Ineos Fluor Holdings Ltd Proceso para la purificacion de pentafluoroetano.

Also Published As

Publication number Publication date
WO1997003936A1 (en) 1997-02-06
DE69623781D1 (de) 2002-10-24
DE69632418D1 (de) 2004-06-09
CN1196037A (zh) 1998-10-14
CA2226673A1 (en) 1997-02-06
DE69632418T2 (de) 2004-09-09
US6156161A (en) 2000-12-05
AU6457796A (en) 1997-02-18
EP0840719B1 (de) 2002-09-18
CN1084720C (zh) 2002-05-15
KR19990028943A (ko) 1999-04-15
JP2007091762A (ja) 2007-04-12
EP0840719A1 (de) 1998-05-13
ES2219225T3 (es) 2004-12-01
BR9609821A (pt) 1999-07-06
MX9800409A (es) 1998-04-30
JPH11509209A (ja) 1999-08-17
ES2183964T3 (es) 2003-04-01

Similar Documents

Publication Publication Date Title
DE69623781T2 (de) Distillationsverfahren zum Rückgewinnen von HFC-125 und HFC-32
DE69720465D1 (de) Verfahren zum wiedergewinnen von prozessflüssigkeiten
DE69609755D1 (de) Verfahren zum Betreiben von gleichgewichtskontrollierten Reaktionen
DE69405287T2 (de) Vorrichtung zum Neuausrichten von bogenförmigen Trägern
DE69630324D1 (de) Verfahren und Kristallformen von 2-Methylthienobenzodiazepinen
DE59814043D1 (de) Verfahren zum anisotropen ätzen von silizium
DE69834129D1 (de) Verfahren und system zum vorausladen von information
DE69406357D1 (de) Verfahren zum Nitrocarbrineren von Stahl
DE69227014T2 (de) Verfahren zum Raffinieren von sehr reinem Stahl
DE69626622T2 (de) Methode zum oberflächenbearbeiten von heissgewalzten stahlmaterial
DE69400257T2 (de) Verfahren zur Reinigung von Pentafluorethan
DE69415097D1 (de) Verfahren zum Laugen und Gewinnen von Metallen
DE59401746D1 (de) Verfahren zum Kondensieren und/oder Äquilibrieren von Organosiliciumverbindungen
DE69633579D1 (de) Verfahren zur Rückgewinnung von Quecksilber
DE69522745T2 (de) Verfahren zum Abbau von Polysiloxanen
DE69621533T2 (de) Verfahren zur Rückgewinnung von Pullulan
DE69615285D1 (de) System zum Raffinieren von Gasen
DE69816690D1 (de) Verfahren zum kontinuierlichen Lösen von Kautschuk
DE69608652T2 (de) Verfahren zum Aufkohlen von Metallen
DE59601684D1 (de) Verfahren zum Recyclen von Diaphragmen
DE59604977D1 (de) Verfahren zum Recycling von Feuerfestmaterial
DE69422888D1 (de) Verfahren zum Dispergieren von Pigmenten
DE69610134T2 (de) Verfahren zum Betreiben von gleichgewichtskontrollierten Reaktionen
DE69405189T2 (de) Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan
DE69405185D1 (de) Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee