GB1484230A - Process for the separating and recovery of the polymer and solvent components of cleansing solutions - Google Patents

Process for the separating and recovery of the polymer and solvent components of cleansing solutions

Info

Publication number
GB1484230A
GB1484230A GB3171975A GB3171975A GB1484230A GB 1484230 A GB1484230 A GB 1484230A GB 3171975 A GB3171975 A GB 3171975A GB 3171975 A GB3171975 A GB 3171975A GB 1484230 A GB1484230 A GB 1484230A
Authority
GB
United Kingdom
Prior art keywords
polymer
pvc
solvent
deposits
inert solid
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
GB3171975A
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.)
Societa Italiana Resine SpA SIR
Original Assignee
Societa Italiana Resine SpA SIR
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 Societa Italiana Resine SpA SIR filed Critical Societa Italiana Resine SpA SIR
Publication of GB1484230A publication Critical patent/GB1484230A/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
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
    • 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
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
    • C08J3/212—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase and solid additives
    • 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
    • C08J2327/04—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 chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • 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

Abstract

1484230 Recovering PVC SOC ITALIANA RESINE SIR SpA 29 July 1975 [10 Sept 1974] 31719/75 Heading C3P In a process for cleaning PVC deposits from polymerization vessels by solution in a solvent, the solvent and polymer are recovered by feeding the solution gradually into an evaporation zone containing an inert solid powder under conditions such that the powder form is maintained and for a period such that the ratio of polymer to inert solid does not exceed 5 : 1. In examples PVC deposits are dissolved in cyclohexanone or toluene/dimethyl formamide or vinyl chloride/vinyl acetate copolymer in tetrahydrofuran, concentrated if desired and evaporated in a mixing apparatus containing calcium carbonate, kaolin or diatomaceous earth, in the presence of a heat stabilizer.
GB3171975A 1974-09-10 1975-07-29 Process for the separating and recovery of the polymer and solvent components of cleansing solutions Expired GB1484230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2711774A IT1021233B (en) 1974-09-10 1974-09-10 PROCEDURE FOR THE SEPARATION AND RECOVERY OF POLYMER AND SOLVENT FROM POLYMER SOLUTIONS

Publications (1)

Publication Number Publication Date
GB1484230A true GB1484230A (en) 1977-09-01

Family

ID=11220983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3171975A Expired GB1484230A (en) 1974-09-10 1975-07-29 Process for the separating and recovery of the polymer and solvent components of cleansing solutions

Country Status (6)

Country Link
DE (1) DE2540329A1 (en)
GB (1) GB1484230A (en)
IT (1) IT1021233B (en)
NL (1) NL7510641A (en)
NO (2) NO141211C (en)
SE (1) SE410108B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2822148A1 (en) * 2001-02-08 2002-09-20 Chavanoz Ind Recovery of particulate polyvinyl chloride from a suspension in an organic liquid by distillation, dissolution and precipitation

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK154301C (en) * 1981-12-23 1989-03-28 Nordiske Kabel Traad PROCEDURE FOR NON-DESTRUCTIVE SEPARATION OF WASTE MIXTURES CONTAINING PLASTIC MATERIALS AND NON-PLASTIC MATERIALS IN THE FORM OF METAL AND GLASS
DE3777128D1 (en) * 1986-12-25 1992-04-09 Sumitomo Electric Industries METHOD FOR PRODUCING A MEDICAL VINYL CHLORIDE RESIN MATERIAL.
DE4107684C2 (en) * 1991-03-09 1994-05-19 Wallcover Tapetenproduktions G Process for the treatment of solvent and blowing agent-containing washing residues
DE102013212813A1 (en) * 2013-07-01 2015-01-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the enrichment of at least one polymer from a polymer-containing waste and polymer recyclate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2822148A1 (en) * 2001-02-08 2002-09-20 Chavanoz Ind Recovery of particulate polyvinyl chloride from a suspension in an organic liquid by distillation, dissolution and precipitation

Also Published As

Publication number Publication date
NO753072L (en) 1976-03-11
NL7510641A (en) 1976-03-12
NO141211C (en) 1980-01-30
SE7510022L (en) 1976-03-11
NO141211L (en)
DE2540329A1 (en) 1976-04-01
SE410108B (en) 1979-09-24
NO141211B (en) 1979-10-22
IT1021233B (en) 1978-01-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee