ES2127355T3 - Produccion de compuestos fluorocarbonados. - Google Patents

Produccion de compuestos fluorocarbonados.

Info

Publication number
ES2127355T3
ES2127355T3 ES94307579T ES94307579T ES2127355T3 ES 2127355 T3 ES2127355 T3 ES 2127355T3 ES 94307579 T ES94307579 T ES 94307579T ES 94307579 T ES94307579 T ES 94307579T ES 2127355 T3 ES2127355 T3 ES 2127355T3
Authority
ES
Spain
Prior art keywords
fluocarbide
hot gas
compound
refrigeration
carbon
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
ES94307579T
Other languages
English (en)
Inventor
Jacobus Swanepoel
Ruan Lombaard
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.)
Atomic Energy Corp of South Africa Ltd
Original Assignee
Atomic Energy Corp of South Africa Ltd
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 Atomic Energy Corp of South Africa Ltd filed Critical Atomic Energy Corp of South Africa Ltd
Application granted granted Critical
Publication of ES2127355T3 publication Critical patent/ES2127355T3/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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • 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
    • B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
    • B01J12/002—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor carried out in the plasma state
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • 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
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
    • C07C17/269—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions of only halogenated hydrocarbons
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3478—Geometrical details
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0894—Processes carried out in the presence of a plasma
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3431—Coaxial cylindrical electrodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3442—Cathodes with inserted tip
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3468—Vortex generators
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S422/00—Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
    • Y10S422/906—Plasma or ion generation means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Geometry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Plasma Technology (AREA)

Abstract

EN LA INVENCION SE PRESENTAN UN METODO Y UN EQUIPO PARA LA PRODUCCION DE UN COMPUESTO DE FLUOCARBURO DESEADO QUE CONSISTE EN FORMAR UNA ZONA DE ALTA TEMPERATURA Y ALIMENTAR AL MENOS UN MATERIAL DE ENTRADA EN LA ZONA DE ALTA TEMPERATURA PARA GENERAR UN CUERPO DE GAS CALIENTE QUE INCLUYA ESPECIES QUE CONTENGAN FLUOR Y ESPECIES QUE CONTENGAN CARBONO. LA RELACION MOLAR C:F DEL CUERPO DE GAS CALIENTE SE CONTROLA DE MODO QUE TENGA UN VALOR SELECCIONADO DE ENTRE 0,4 Y 2; Y LA ENTALPIA ESPECIFICA DEL CUERPO DE GAS CALIENTE SE CONTROLA DE MODO QUE SEA DE ENTRE 1KWH/KG APROXIMADAMENTE Y 10KWH/KG APROXIMADAMENTE DURANTE UN INTERVALO DE TIEMPO DE TAL MODO QUE SE FORME UNA MEZCLA GASEOSA TERMICA REACTIVA, QUE CONTENGA ESPECIES REACTIVAS QUE INCLUYAN PRECURSORES REACTIVOS QUE CONTENGAN FLUOR Y PRECURSORES REACTIVOS QUE CONTENGAN CARBONO. A CONTINUACION SE REFRIGERA LA MEZCLA TERMICA REACTIVA A UNA VELOCIDAD DE REFRIGERACION Y A UNA TEMPERATURA DE REFRIGERACION SELECCIONADAS PARA OBTENER UN PRODUCTO FINALQUE INCLUYE EL COMPUESTO DE FLUOCARBURO DESEADO. EL MATERIAL DE ENTRADA ES NORMALMENTE UN COMPUESTO DE CARBONO PERFLUORADO C1-C10 DE LA FORMULA GENERAL CNFM EN LA QUE 0 < N (MENOR O IGUAL) 10 Y M = 2N, 2N + 2, O 2N EMPLO UN FLUOCARBURO GASEOSO TAL COMO TETRAFLUOMETANO (CF4).
ES94307579T 1993-10-14 1994-10-14 Produccion de compuestos fluorocarbonados. Expired - Lifetime ES2127355T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA937644 1993-10-14

Publications (1)

Publication Number Publication Date
ES2127355T3 true ES2127355T3 (es) 1999-04-16

Family

ID=25583316

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94307579T Expired - Lifetime ES2127355T3 (es) 1993-10-14 1994-10-14 Produccion de compuestos fluorocarbonados.

Country Status (13)

Country Link
US (1) US5611896A (es)
EP (1) EP0648530B1 (es)
JP (1) JP3892490B2 (es)
KR (1) KR100370184B1 (es)
CN (1) CN1076723C (es)
AU (1) AU687091B2 (es)
BR (1) BR9404115A (es)
CA (1) CA2118081C (es)
DE (1) DE69416073T2 (es)
ES (1) ES2127355T3 (es)
PL (1) PL305458A1 (es)
RU (1) RU2154624C2 (es)
ZA (1) ZA948100B (es)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN187706B (es) * 1995-03-31 2002-06-08 Du Pont
DE69610084T2 (de) * 1995-03-31 2001-05-10 E.I. Du Pont De Nemours And Co., Wilmington Verfahren zur herstellung von tetrafluorethylen
EP1253973B1 (en) * 2000-02-10 2005-05-11 South African Nuclear Energy Corporation Limited Treatment of fluorocarbon feedstocks
CN1273423C (zh) * 2000-02-10 2006-09-06 南非核能源有限公司 碳氟化合物原料的处理
DE60140516D1 (de) * 2000-02-10 2009-12-31 3M Innovative Properties Co Behandlung von fluorkohlenstoff- ausgangsmaterialien
FR2825295B1 (fr) * 2001-05-31 2004-05-28 Air Liquide Application des plasmas denses crees a pression atmospherique au traitement d'effluents gazeux
US9481584B2 (en) * 2001-07-16 2016-11-01 Foret Plasma Labs, Llc System, method and apparatus for treating liquids with wave energy from plasma
US7857972B2 (en) 2003-09-05 2010-12-28 Foret Plasma Labs, Llc Apparatus for treating liquids with wave energy from an electrical arc
US7422695B2 (en) * 2003-09-05 2008-09-09 Foret Plasma Labs, Llc Treatment of fluids with wave energy from a carbon arc
US8764978B2 (en) 2001-07-16 2014-07-01 Foret Plasma Labs, Llc System for treating a substance with wave energy from an electrical arc and a second source
US7622693B2 (en) * 2001-07-16 2009-11-24 Foret Plasma Labs, Llc Plasma whirl reactor apparatus and methods of use
US10188119B2 (en) 2001-07-16 2019-01-29 Foret Plasma Labs, Llc Method for treating a substance with wave energy from plasma and an electrical arc
US8734643B2 (en) 2001-07-16 2014-05-27 Foret Plasma Labs, Llc Apparatus for treating a substance with wave energy from an electrical arc and a second source
US8981250B2 (en) 2001-07-16 2015-03-17 Foret Plasma Labs, Llc Apparatus for treating a substance with wave energy from plasma and an electrical Arc
US8734654B2 (en) 2001-07-16 2014-05-27 Foret Plasma Labs, Llc Method for treating a substance with wave energy from an electrical arc and a second source
CA2584508A1 (en) * 2002-05-09 2003-11-09 Institut National De La Recherche Scientifique Method for producing single-wall carbon nanotubes
US6919015B2 (en) * 2002-12-16 2005-07-19 3M Innovative Properties Company Process for manufacturing fluoroolefins
WO2005116650A2 (en) 2004-04-19 2005-12-08 Sdc Materials, Llc High throughput discovery of materials through vapor phase synthesis
GB2419132B (en) * 2004-10-04 2011-01-19 C Tech Innovation Ltd Method of production of fluorinated carbon nanostructures
EP1810001A4 (en) 2004-10-08 2008-08-27 Sdc Materials Llc APPARATUS AND METHOD FOR SAMPLING AND COLLECTING POWDERS FLOWING IN A GAS STREAM
EP2150971B1 (en) 2007-05-11 2018-11-28 Umicore AG & Co. KG Method and apparatus for making uniform and ultrasmall nanoparticles
US8481449B1 (en) 2007-10-15 2013-07-09 SDCmaterials, Inc. Method and system for forming plug and play oxide catalysts
USD627900S1 (en) 2008-05-07 2010-11-23 SDCmaterials, Inc. Glove box
US9119309B1 (en) 2009-12-15 2015-08-25 SDCmaterials, Inc. In situ oxide removal, dispersal and drying
US8557727B2 (en) 2009-12-15 2013-10-15 SDCmaterials, Inc. Method of forming a catalyst with inhibited mobility of nano-active material
US8803025B2 (en) 2009-12-15 2014-08-12 SDCmaterials, Inc. Non-plugging D.C. plasma gun
US9149797B2 (en) * 2009-12-15 2015-10-06 SDCmaterials, Inc. Catalyst production method and system
US8470112B1 (en) 2009-12-15 2013-06-25 SDCmaterials, Inc. Workflow for novel composite materials
US8545652B1 (en) 2009-12-15 2013-10-01 SDCmaterials, Inc. Impact resistant material
US8652992B2 (en) * 2009-12-15 2014-02-18 SDCmaterials, Inc. Pinning and affixing nano-active material
US20110144382A1 (en) * 2009-12-15 2011-06-16 SDCmaterials, Inc. Advanced catalysts for fine chemical and pharmaceutical applications
US9126191B2 (en) 2009-12-15 2015-09-08 SDCmaterials, Inc. Advanced catalysts for automotive applications
GB201010958D0 (en) 2010-06-30 2010-08-11 3M Innovative Properties Co Process for manufacturing perfluoroolefins by pyrolysis of perfluorocarbons in the presence of hydrogen
US8669202B2 (en) 2011-02-23 2014-03-11 SDCmaterials, Inc. Wet chemical and plasma methods of forming stable PtPd catalysts
EP2744590A4 (en) 2011-08-19 2016-03-16 Sdcmaterials Inc COATED SUBSTRATES FOR USE IN CATALYSIS AND CATALYSTS AND METHOD FOR COATING SUBSTRATES WITH PRIMING COMPOSITIONS
EP2642831A1 (de) * 2012-03-22 2013-09-25 Hollberg, Manfred Plasma-Elektrode für einen Plasma-Lichtbogenbrenner und Verfahren zur Herstellung
US9156025B2 (en) 2012-11-21 2015-10-13 SDCmaterials, Inc. Three-way catalytic converter using nanoparticles
US9511352B2 (en) 2012-11-21 2016-12-06 SDCmaterials, Inc. Three-way catalytic converter using nanoparticles
CA2894535C (en) 2012-12-11 2018-05-29 Foret Plasma Labs, Llc High temperature countercurrent vortex reactor system, method and apparatus
EP2971488B1 (en) 2013-03-12 2018-09-26 Foret Plasma Labs, Llc Apparatus and method for sintering proppants
US9586179B2 (en) 2013-07-25 2017-03-07 SDCmaterials, Inc. Washcoats and coated substrates for catalytic converters and methods of making and using same
US9427732B2 (en) 2013-10-22 2016-08-30 SDCmaterials, Inc. Catalyst design for heavy-duty diesel combustion engines
JP2016535664A (ja) 2013-10-22 2016-11-17 エスディーシーマテリアルズ, インコーポレイテッド リーンNOxトラップの組成物
EP3119500A4 (en) 2014-03-21 2017-12-13 SDC Materials, Inc. Compositions for passive nox adsorption (pna) systems
EP3002273A1 (en) 2014-10-01 2016-04-06 3M Innovative Properties Company Process and apparatus for producing fluorinated alkenes
WO2017119326A1 (ja) * 2016-01-05 2017-07-13 株式会社Helix 渦水流発生器、水プラズマ発生装置、分解処理装置、分解処理装置搭載車両及び分解処理方法
JP6914138B2 (ja) * 2017-07-26 2021-08-04 株式会社Screenホールディングス 基板処理方法及び基板処理装置
US11034636B2 (en) * 2018-01-17 2021-06-15 Showa Denko K.K. Method for producing tetrafluoromethane
CN117279881A (zh) * 2021-05-31 2023-12-22 日本瑞翁株式会社 氟代烃的制造方法
CN117024245B (zh) * 2023-08-07 2024-06-18 浙江大学 一种热等离子体裂解废旧聚四氟乙烯生产四氟甲烷的方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732411A (en) * 1956-01-24 Preparation of tetrafluorgethylene
US2852574A (en) * 1955-06-15 1958-09-16 Du Pont Preparation of tetrafluoroethylene
FR1154180A (fr) * 1955-06-15 1958-04-03 Du Pont Procédé pour conduire des réactions chimiques
US2785119A (en) * 1955-07-18 1957-03-12 Gen Electric Transient arc method of preparing fluorocarbons
US2924625A (en) * 1957-11-21 1960-02-09 Du Pont Process for preparing carbon tetrafluoride of high degree of purity from reactants heated in carbon electric arc
US3033767A (en) * 1958-09-02 1962-05-08 Dow Chemical Co Preparation of fluorocarbons
US3081245A (en) * 1960-03-17 1963-03-12 Du Pont Method for the preparation of tetrafluoroethylene
US3147998A (en) * 1962-09-10 1964-09-08 Hamilton Cosco Inc Back rest
GB1278495A (en) * 1969-08-08 1972-06-21 Ian George Sayce Production of flourine or volatile fluorine compounds by melt electrolysis
US3832411A (en) * 1971-02-02 1974-08-27 Liquid Nitrogen Processing Method for the depolymerization of polytetrafluoroethylene
US3929920A (en) * 1973-05-31 1975-12-30 Daikin Ind Ltd Process for continuous fluorination of carbon
US3904501A (en) * 1973-10-04 1975-09-09 Massachusetts Inst Technology Fluorine plasma synthesis for carbon monofluorides
US4128589A (en) * 1977-06-22 1978-12-05 Hughes Aircraft Company Generation of CF4 from Teflon for reactive atmosphere processing and growth of metal fluorides
GB2049465B (en) * 1979-03-30 1983-12-14 Daikin Ind Ltd Process and apparatus for solid-gas reaction
JPS5860606A (ja) * 1981-07-22 1983-04-11 Central Glass Co Ltd フツ化黒鉛の製造方法
US4973773A (en) * 1988-11-29 1990-11-27 E. I. Du Pont De Nemours And Company Production of tetrafluoroethylene
US5147998A (en) * 1991-05-29 1992-09-15 Noranda Inc. High enthalpy plasma torch
CA2043504C (en) * 1991-05-29 1995-01-17 Peter G. Tsantrizos High enthalpy plasma torch
US5207999A (en) * 1991-08-13 1993-05-04 Cameco Corporation Generation of fluorine via thermal plasma decomposition of metal fluoride

Also Published As

Publication number Publication date
CN1108638A (zh) 1995-09-20
EP0648530A1 (en) 1995-04-19
EP0648530B1 (en) 1999-01-20
CA2118081A1 (en) 1995-04-15
US5611896A (en) 1997-03-18
CA2118081C (en) 2006-10-03
DE69416073T2 (de) 1999-06-24
CN1076723C (zh) 2001-12-26
AU7581194A (en) 1995-05-04
JP3892490B2 (ja) 2007-03-14
KR950011382A (ko) 1995-05-15
JPH07238041A (ja) 1995-09-12
AU687091B2 (en) 1998-02-19
DE69416073D1 (de) 1999-03-04
RU2154624C2 (ru) 2000-08-20
RU94037594A (ru) 1996-12-10
ZA948100B (en) 1996-04-15
PL305458A1 (en) 1995-04-18
KR100370184B1 (ko) 2003-10-17
BR9404115A (pt) 1995-06-27

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