GB1495297A - Process for the production of perfluoro hydrocarbons - Google Patents

Process for the production of perfluoro hydrocarbons

Info

Publication number
GB1495297A
GB1495297A GB5332974A GB5332974A GB1495297A GB 1495297 A GB1495297 A GB 1495297A GB 5332974 A GB5332974 A GB 5332974A GB 5332974 A GB5332974 A GB 5332974A GB 1495297 A GB1495297 A GB 1495297A
Authority
GB
United Kingdom
Prior art keywords
irradiation
ptfe
current
irradiated
products
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
Application number
GB5332974A
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.)
Akademie der Wissenschaften der DDR
Original Assignee
Akademie der Wissenschaften der DDR
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
Priority to DD14343569A priority Critical patent/DD112589A3/xx
Priority to DE19742456869 priority patent/DE2456869A1/en
Priority to AT963774A priority patent/AT339598B/en
Priority to CH1628174A priority patent/CH617941A5/en
Priority to NL7416010A priority patent/NL7416010A/en
Priority to GB5332974A priority patent/GB1495297A/en
Application filed by Akademie der Wissenschaften der DDR filed Critical Akademie der Wissenschaften der DDR
Priority to BE151479A priority patent/BE823324A/en
Priority to JP14629074A priority patent/JPS5175001A/ja
Priority to LU71551A priority patent/LU71551A1/xx
Priority to FR7443073A priority patent/FR2295970B1/en
Publication of GB1495297A publication Critical patent/GB1495297A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • C07C17/367—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms by depolymerisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/15—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen containing halogen
    • C07C53/19—Acids containing three or more carbon atoms
    • C07C53/21—Acids containing three or more carbon atoms containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K5/00—Irradiation devices
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • 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
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

1495297 Perfluorohydrocarbons and derivatives by irradiation of polymers AKADEMIE DER WISSENSCHAFTEN DER DDR 10 Dec 1974 53329/74 Heading C2C Perfluorohydrocarbons of chain length up to 30 C atoms or substituted derivatives thereof or corresponding perfluorocarboxylic acids are produced by irradiation of solid perfluorinated hydrocarbon polymers with electron beams, the intermediately formed fission products are optionally reacted with a reactant and the desired products are immediately removed from the irradiation zone. The irradiated material is preferably PTFE and substances which are reactive under the selected radiation conditions may also be passed in. The desired products are preferably removed by a current of carrier gas, which may itself become active during irradiation, e.g. O 2 or a mixture of O 2 /inert gas. The products obtained may be deactivated and retreated with electron beams or fractionated and reacted with an amine, alcohol, phenol, carboxylic acid. Sulphonic acid hydrogen halide, vinyl compound or ammonia. Amongst the examples PTFE is irradiated in a current of N 2 to give n-perfluoroparaffins and perfluoroolefins; PTFE is irradiated in a current of air to yield COF 2 and n-perfluorocarboxylic acid fluorides which are hydrolysed by atmospheric moisture to the corresponding perfluorocarboxylic acids. The carrier gases exemplified include NO and SOCl 2 .
GB5332974A 1969-10-31 1974-12-10 Process for the production of perfluoro hydrocarbons Expired GB1495297A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
DD14343569A DD112589A3 (en) 1969-10-31 1969-10-31
DE19742456869 DE2456869A1 (en) 1969-10-31 1974-12-02 PROCESS AND APPARATUS FOR THE PRODUCTION OF SUBSTITUTED HIGHLY FLUOROUS HYDROCARBON DERIVATIVES FROM HIGHLY FLUOROUS POLYMERS TO OLIGOMERS, PREFERABLY FROM POLYTETRAFLUOROETHYLENE
AT963774A AT339598B (en) 1969-10-31 1974-12-02 METHOD AND APPARATUS FOR THE PRODUCTION OF SUBSTITUTED HIGHLY FLUOROUS HYDROCARBONS FROM HIGHLY FLUOROUS POLYMERS TO OLIGOMERS, PREFERABLY FROM POLYTETRAFLUORATHYLENE
CH1628174A CH617941A5 (en) 1969-10-31 1974-12-06 Process and apparatus for preparing highly fluorinated hydrocarbons
NL7416010A NL7416010A (en) 1969-10-31 1974-12-09 METHOD AND EQUIPMENT FOR PREPARING SUBSTITUTED AND FUNCTIONALIZED HIGH FLUORIDATED HYDROCARBON DERIVATIVES FROM HIGH FLUORIDATED POLYMERS TO OLIGOMERS, PREFERABLY FROM POLYTETRAFLUORETINES.
GB5332974A GB1495297A (en) 1969-10-31 1974-12-10 Process for the production of perfluoro hydrocarbons
BE151479A BE823324A (en) 1969-10-31 1974-12-13 METHOD AND APPARATUS FOR MANUFACTURING HIGHLY FLUOROUS HYDROCARBON DERIVATIVES.
JP14629074A JPS5175001A (en) 1969-10-31 1974-12-19
LU71551A LU71551A1 (en) 1969-10-31 1974-12-23
FR7443073A FR2295970B1 (en) 1969-10-31 1974-12-27 PROCESS AND DEVICE FOR OBTAINING HIGHLY FLUORINATED SUBSTITUTED AND FUNCTIONALIZED HYDROCARBON DERIVATIVES

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
DD14343569A DD112589A3 (en) 1969-10-31 1969-10-31
DE19742456869 DE2456869A1 (en) 1969-10-31 1974-12-02 PROCESS AND APPARATUS FOR THE PRODUCTION OF SUBSTITUTED HIGHLY FLUOROUS HYDROCARBON DERIVATIVES FROM HIGHLY FLUOROUS POLYMERS TO OLIGOMERS, PREFERABLY FROM POLYTETRAFLUOROETHYLENE
AT963774A AT339598B (en) 1969-10-31 1974-12-02 METHOD AND APPARATUS FOR THE PRODUCTION OF SUBSTITUTED HIGHLY FLUOROUS HYDROCARBONS FROM HIGHLY FLUOROUS POLYMERS TO OLIGOMERS, PREFERABLY FROM POLYTETRAFLUORATHYLENE
CH1628174A CH617941A5 (en) 1969-10-31 1974-12-06 Process and apparatus for preparing highly fluorinated hydrocarbons
NL7416010A NL7416010A (en) 1969-10-31 1974-12-09 METHOD AND EQUIPMENT FOR PREPARING SUBSTITUTED AND FUNCTIONALIZED HIGH FLUORIDATED HYDROCARBON DERIVATIVES FROM HIGH FLUORIDATED POLYMERS TO OLIGOMERS, PREFERABLY FROM POLYTETRAFLUORETINES.
GB5332974A GB1495297A (en) 1969-10-31 1974-12-10 Process for the production of perfluoro hydrocarbons
BE151479A BE823324A (en) 1969-10-31 1974-12-13 METHOD AND APPARATUS FOR MANUFACTURING HIGHLY FLUOROUS HYDROCARBON DERIVATIVES.
JP14629074A JPS5175001A (en) 1969-10-31 1974-12-19
FR7443073A FR2295970B1 (en) 1969-10-31 1974-12-27 PROCESS AND DEVICE FOR OBTAINING HIGHLY FLUORINATED SUBSTITUTED AND FUNCTIONALIZED HYDROCARBON DERIVATIVES

Publications (1)

Publication Number Publication Date
GB1495297A true GB1495297A (en) 1977-12-14

Family

ID=27575581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5332974A Expired GB1495297A (en) 1969-10-31 1974-12-10 Process for the production of perfluoro hydrocarbons

Country Status (10)

Country Link
JP (1) JPS5175001A (en)
AT (1) AT339598B (en)
BE (1) BE823324A (en)
CH (1) CH617941A5 (en)
DD (1) DD112589A3 (en)
DE (1) DE2456869A1 (en)
FR (1) FR2295970B1 (en)
GB (1) GB1495297A (en)
LU (1) LU71551A1 (en)
NL (1) NL7416010A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042597A1 (en) * 2003-10-30 2005-05-12 Leibniz-Institut Für Polymerforschung Dresden E.V. Modified perfluoroplastics, and method for the production thereof
US7759441B2 (en) 2003-10-30 2010-07-20 Leibniz-Institut Fuer Polymerforschung Dresden E.V. Radically coupled PTFE polymer compounds and method for the production thereof
US7790780B2 (en) 2003-10-30 2010-09-07 Leibniz-Institut Fuer Polymerforschung Dresden E.V. Radically coupled PTFE polymer powders, and method for the production thereof
US20230109030A1 (en) * 2020-02-21 2023-04-06 3M Innovative Properties Company Upcycling Perfluoropolymers into Fluorinated Olefins

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042597A1 (en) * 2003-10-30 2005-05-12 Leibniz-Institut Für Polymerforschung Dresden E.V. Modified perfluoroplastics, and method for the production thereof
US7759441B2 (en) 2003-10-30 2010-07-20 Leibniz-Institut Fuer Polymerforschung Dresden E.V. Radically coupled PTFE polymer compounds and method for the production thereof
US7790780B2 (en) 2003-10-30 2010-09-07 Leibniz-Institut Fuer Polymerforschung Dresden E.V. Radically coupled PTFE polymer powders, and method for the production thereof
US8030367B2 (en) 2003-10-30 2011-10-04 Leibniz-Institut Fuer Polymerforschung Dresden E.V. Radically coupled PTFE polymer powder and method for the production thereof
US8648149B2 (en) 2003-10-30 2014-02-11 Leibniz-Institut Fuer Polymerforschung Dresden E.V. Radically coupled PTFE polymer compounds and method for the production thereof
US20230109030A1 (en) * 2020-02-21 2023-04-06 3M Innovative Properties Company Upcycling Perfluoropolymers into Fluorinated Olefins
US11795126B2 (en) * 2020-02-21 2023-10-24 3M Innovative Properties Company Upcycling perfluoropolymers into fluorinated olefins

Also Published As

Publication number Publication date
DD112589A3 (en) 1975-04-20
AT339598B (en) 1977-10-25
JPS5175001A (en) 1976-06-29
LU71551A1 (en) 1975-06-17
NL7416010A (en) 1976-06-11
CH617941A5 (en) 1980-06-30
DE2456869A1 (en) 1976-06-10
BE823324A (en) 1975-06-13
ATA963774A (en) 1977-02-15
FR2295970A1 (en) 1976-07-23
FR2295970B1 (en) 1980-03-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee