BE823325A - Procede et appareil pour la degradation radiochimique de polymeres ou oligomeres. - Google Patents

Procede et appareil pour la degradation radiochimique de polymeres ou oligomeres.

Info

Publication number
BE823325A
BE823325A BE151480A BE151480A BE823325A BE 823325 A BE823325 A BE 823325A BE 151480 A BE151480 A BE 151480A BE 151480 A BE151480 A BE 151480A BE 823325 A BE823325 A BE 823325A
Authority
BE
Belgium
Prior art keywords
radiochemical
oligomers
degradation
polymers
radiochemical degradation
Prior art date
Application number
BE151480A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE823325A publication Critical patent/BE823325A/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/04Recovery or working-up of waste materials of polymers
    • C08J11/10Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/081Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing particle radiation or gamma-radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/081Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing particle radiation or gamma-radiation
    • B01J19/085Electron beams only
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00Preparation of halogenated hydrocarbons
    • C07C17/361Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • C07C17/367Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms by depolymerisation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/15Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen containing halogen
    • C07C53/19Acids containing three or more carbon atoms
    • C07C53/21Acids containing three or more carbon atoms containing fluorine
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/38Acyl halides
    • C07C53/46Acyl halides containing halogen outside the carbonyl halide group
    • C07C53/50Acyl halides containing halogen outside the carbonyl halide group of acids containing three or more carbon atoms
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/50Partial depolymerisation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/28Treatment by wave energy or particle radiation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2800/00Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/10Copolymer characterised by the proportions of the comonomers expressed as molar percentages
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics 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 Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
BE151480A 1970-02-20 1974-12-13 Procede et appareil pour la degradation radiochimique de polymeres ou oligomeres. BE823325A (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DD145764A DD112588A3 (xx) 1970-02-20 1970-02-20
AT963674A AT345551B (de) 1970-02-20 1974-12-02 Verfahren und vorrichtung zum strahlenchemischen abbau von hochfluorierten polymeren bis oligomeren
CH1628274A CH617216A5 (en) 1970-02-20 1974-12-06 Process and apparatus for radiation-chemical degradation of polymers or oligomers
GB53330/74A GB1496347A (en) 1970-02-20 1974-12-10 Decomposition and reaction of polymers and/or oligomers
JP49144563A JPS5171388A (en) 1970-02-20 1974-12-18 Jugotainaishi origomaanokokagakutekibunkainohoho to sochi
FR7443074A FR2295981A1 (fr) 1970-02-20 1974-12-27 Procede et dispositif pour la degradation chimique par irradiation de polymeres et oligomeres
US05/609,969 US4072591A (en) 1970-02-20 1975-09-03 Process for conversion of oligomers and higher polymers by irradiation with high-energy electrons

Publications (1)

Publication Number Publication Date
BE823325A true BE823325A (fr) 1975-06-13

Family

ID=27560460

Family Applications (1)

Application Number Title Priority Date Filing Date
BE151480A BE823325A (fr) 1970-02-20 1974-12-13 Procede et appareil pour la degradation radiochimique de polymeres ou oligomeres.

Country Status (11)

Country Link
US (1) US4072591A (xx)
JP (1) JPS5171388A (xx)
AT (1) AT345551B (xx)
BE (1) BE823325A (xx)
CH (1) CH617216A5 (xx)
DD (1) DD112588A3 (xx)
DE (1) DE2456870A1 (xx)
FR (1) FR2295981A1 (xx)
GB (1) GB1496347A (xx)
LU (1) LU71552A1 (xx)
NL (1) NL7416009A (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3577094D1 (de) * 1984-01-16 1990-05-17 Du Pont Fertigbearbeitung von perfluorierten mischpolymerisatenim extruder.
CA1280543C (en) * 1985-01-31 1991-02-19 B. Joseph Scheve Polypropylene with free-end long chain branching, process for making it, and use thereof
US4861408A (en) * 1987-04-08 1989-08-29 The United States Of America As Represented By The United States Department Of Energy Modification of polymeric surface for improved adhesion via electron beam exposure
FR2692583A1 (fr) * 1992-05-29 1993-12-24 Mezza Michel Mise en application d'une réaction photochimique sur divers produits en polypropylène, copolymère ou homogène et polyéthylène haute ou basse densité.
DE4334015A1 (de) * 1993-10-06 1995-04-13 Hoechst Ag Verfahren zur Herstellung von fluorierten Monomeren
SK279397B6 (sk) * 1997-03-03 1998-11-04 Ivan Ma�Ar Spôsob termálnej a/alebo katalytickej dekompozície
ITTO20010372A1 (it) * 2001-04-13 2002-10-13 Silvio Perona Procedimento di depurazione e raffinazione di fluidi per mezzo di elettroni accelerati.
AU2003269802A1 (en) * 2002-03-14 2003-12-31 Shamrock Technologies, Inc. Methods for producing submicron polytetrafluoroethylene powder and products thereof
DE102006041874B4 (de) * 2005-09-30 2014-06-18 Leibniz-Institut Für Polymerforschung Dresden E.V. Vorrichtung zur kontinuierlichen Modifizierung von Polymeren im fließfähigen Zustand mittels Elektronenstrahlung
JP5260294B2 (ja) * 2005-09-30 2013-08-14 ライプニッツ−インスティチュート フュア ポリマーフォルシュング ドレスデン エーファウ ポリマを流動性の状態で電子放射線によって連続的に改質するための装置
EP1847555A1 (en) 2006-04-18 2007-10-24 Borealis Technology Oy Multi-branched Polypropylene
DE102009002642A1 (de) * 2009-04-24 2010-10-28 Leibniz-Institut Für Polymerforschung Dresden E.V. Verfahren zur Herstellung thermoplastischer Polymercompounds
EP4106910A1 (en) * 2020-02-21 2022-12-28 3M Innovative Properties Company Upcycling perfluoropolymers into fluorinated olefins

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE544324A (xx) * 1955-01-11
NL210427A (xx) * 1955-09-06
US3833626A (en) * 1968-09-23 1974-09-03 Chem Nunchritz Veb Process for preparing perfluorinated mono-and dicarboxylic acids
US4029870A (en) * 1970-02-03 1977-06-14 Imperial Chemical Industries Limited Tetrafluoroethylene polymers

Also Published As

Publication number Publication date
FR2295981A1 (fr) 1976-07-23
JPS5171388A (en) 1976-06-21
CH617216A5 (en) 1980-05-14
ATA963674A (de) 1978-01-15
FR2295981B1 (xx) 1978-05-05
LU71552A1 (xx) 1975-06-17
GB1496347A (en) 1977-12-30
US4072591A (en) 1978-02-07
NL7416009A (nl) 1976-06-11
DD112588A3 (xx) 1975-04-20
DE2456870A1 (de) 1976-06-10
AT345551B (de) 1978-09-25

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