IE43107L - Removing monomers from an aqueous pvc dispersion - Google Patents

Removing monomers from an aqueous pvc dispersion

Info

Publication number
IE43107L
IE43107L IE761027A IE102776A IE43107L IE 43107 L IE43107 L IE 43107L IE 761027 A IE761027 A IE 761027A IE 102776 A IE102776 A IE 102776A IE 43107 L IE43107 L IE 43107L
Authority
IE
Ireland
Prior art keywords
dispersion
matter
column
monomeric
vinyl chloride
Prior art date
Application number
IE761027A
Other versions
IE43107B1 (en
Original Assignee
Hoechst Ag
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 Hoechst Ag filed Critical Hoechst Ag
Publication of IE43107L publication Critical patent/IE43107L/en
Publication of IE43107B1 publication Critical patent/IE43107B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/38—Steam distillation
    • 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
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/003—Removal of residual monomers by physical means from polymer solutions, suspensions, dispersions or emulsions without recovery of the polymer therefrom

Abstract

1497510 Purifying a dispersion of vinyl chloride polymer HOECHST AG 4 May 1976 [16 May 1975] 18174/76 Heading C3P Monomeric matter is removed from an aqueous dispersion of a vinyl chloride polymer by a process in which: the dispersion is introduced into the upper portion of a column provided with sieve plates and contacted therein for 10 seconds up to 20 minutes and under a pressure of 600 to 1200 mm Mg with superheated steam at 100 to 150 C flowing countercurrently with respect to the dispersion; the polymer dispersion so treated is removed from the column base portion; and a vaporous matter mixture issuing at the head of the column is condensed stagewise so as to recover an aqueous phase and the monomeric matter. [GB1497510A]
IE1027/76A 1975-05-16 1976-05-14 Process for continuously removing monomers from an aqueous dispersion of a polymer IE43107B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2521780A DE2521780C2 (en) 1975-05-16 1975-05-16 Process for the continuous removal of monomers from an aqueous dispersion of a polymer

Publications (2)

Publication Number Publication Date
IE43107L true IE43107L (en) 1976-11-16
IE43107B1 IE43107B1 (en) 1980-12-17

Family

ID=5946686

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1027/76A IE43107B1 (en) 1975-05-16 1976-05-14 Process for continuously removing monomers from an aqueous dispersion of a polymer

Country Status (22)

Country Link
JP (1) JPS51140985A (en)
AT (1) AT352393B (en)
BE (1) BE841838A (en)
CA (1) CA1278638C (en)
CH (1) CH601358A5 (en)
CS (1) CS191306B2 (en)
DD (1) DD124253A5 (en)
DE (1) DE2521780C2 (en)
DK (1) DK213576A (en)
ES (1) ES447280A1 (en)
FR (1) FR2311037A1 (en)
GB (1) GB1497510A (en)
HU (1) HU174924B (en)
IE (1) IE43107B1 (en)
IT (1) IT1061284B (en)
LU (1) LU74948A1 (en)
NL (1) NL160841B (en)
NO (1) NO146284B (en)
PL (1) PL103008B1 (en)
SE (1) SE7602710L (en)
SU (1) SU841591A3 (en)
YU (1) YU121376A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2718858A1 (en) * 1977-04-28 1978-11-02 Hoechst Ag Degassing column with equally spaced perforated plates - supported by peripheral ring and lugs and crossed by downcomers with adjustable overflow height
DE2718857A1 (en) * 1977-04-28 1978-11-02 Hoechst Ag Degassing column with equally spaced perforated plates - supported by peripheral ring and lugs and crossed by downcomers with adjustable overflow height
DE2640592A1 (en) * 1976-09-09 1978-03-16 Hoechst Ag Fractionation column for removing monomer from polymer suspensions - which extracts volatiles while avoiding sedimentation
JPS5298591U (en) * 1976-01-20 1977-07-25
NZ184661A (en) * 1976-07-27 1979-08-31 Ici Australia Ltd Removing monomer from vinyl chloride polymers
DE2640546C2 (en) * 1976-09-09 1982-07-01 Hoechst Ag, 6000 Frankfurt Process for the continuous removal of vinyl chloride from an aqueous dispersion of homo- and copolymers of vinyl chloride
DE2800608A1 (en) * 1977-04-11 1978-10-19 Buna Chem Werke Veb PROCESS FOR THE DEMONOMERIZATION OF POLYMER DISPERSIONS, PREFERABLY POLYVINYL CHLORIDE DISPERSIONS
JPS548693A (en) * 1977-06-21 1979-01-23 Chisso Corp Removal of monomer from vinyl chloride resin slurry by steam treatment using improved plate column
DE2744462C2 (en) * 1977-10-03 1982-09-16 Wacker-Chemie GmbH, 8000 München Process for preventing foam formation during the removal of residual monomers from aqueous polymer dispersions
US4201628A (en) * 1977-10-07 1980-05-06 The Goodyear Tire & Rubber Company Separation apparatus
DE2746909C3 (en) * 1977-10-19 1982-03-11 Hoechst Ag, 6000 Frankfurt Process for the continuous removal of residual hydrocarbons from polyolefins
US4200734A (en) * 1977-11-21 1980-04-29 Diamond Shamrock Corporation Process for polymerization of polyvinyl chloride and VCM monomer removal
DE2759097A1 (en) * 1977-12-30 1979-07-12 Norsk Hydro As METHOD FOR REMOVING VINYL CHLORIDE FROM POLYVINYL CHLORIDE DISPERSIONS AND A COLUMN FOR CARRYING OUT THE METHOD
US4228273A (en) * 1978-09-05 1980-10-14 Tenneco Chemicals, Inc. Process for the removal of vinyl chloride from aqueous dispersions of vinyl chloride resins
DE2855146C2 (en) * 1978-12-20 1983-04-28 Chisso Corp., Osaka Process for removing residual monomeric vinyl chloride from an aqueous dispersion of a polyvinyl chloride resin powder
DE2903586A1 (en) 1979-01-31 1980-08-14 Hoechst Ag METHOD FOR THE CONTINUOUS REMOVAL OF RESIDUAL HYDROCARBONS FROM POLYOLEFINS AND DEVICE FOR CARRYING OUT THE METHOD
US4402916A (en) * 1981-06-30 1983-09-06 Marathon Oil Company Dilution apparatus and method
JPS63317306A (en) * 1987-06-19 1988-12-26 Chisso Corp Low polymerization degree vinyl chloride polymer powder with small amount of residual vinyl chloride monomer and its preparation
WO1996018659A1 (en) * 1994-12-12 1996-06-20 C.I.R.S. S.P.A. Method and plant for the production of polyvinylchloride in aqueous suspension with recovery of refluxes
JP3950743B2 (en) * 2002-06-03 2007-08-01 キヤノン株式会社 Method for producing toner particles
JP6829567B2 (en) * 2016-09-16 2021-02-10 株式会社クラレ Method for producing a polymer from which volatile components have been removed

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL129660C (en) * 1964-08-24
US3816379A (en) * 1971-07-26 1974-06-11 Exxon Research Engineering Co Monomer and solvent recovery in polymerization processes
BE793505A (en) * 1972-12-29 1973-06-29 Solvay Process for removing residual vinyl chloride present in the polymer
NO752264L (en) * 1974-08-29 1976-03-02 Huels Chemische Werke Ag
DE2450464A1 (en) * 1974-10-24 1976-04-29 Basf Ag PROCESS FOR LOW EMISSIONS REMOVAL OF VINYL CHLORIDE FROM POLYMERIZES OF VINYL CHLORIDE
DE2509937C3 (en) * 1975-03-07 1981-04-16 Hoechst Ag, 6000 Frankfurt Device for the aftertreatment of homo- and copolymers of vinyl chloride
DE2520591C3 (en) * 1975-05-09 1980-11-06 Hoechst Ag, 6000 Frankfurt Process and device for the continuous treatment of aqueous homo- and copolymer dispersions, the polymer content of which is at least 50% by weight polymerized

Also Published As

Publication number Publication date
GB1497510A (en) 1978-01-12
LU74948A1 (en) 1977-02-14
NO761676L (en) 1976-11-17
HU174924B (en) 1980-04-28
FR2311037B1 (en) 1981-12-31
SE7602710L (en) 1976-11-17
NL7605200A (en) 1976-11-18
YU121376A (en) 1982-02-28
DE2521780A1 (en) 1976-11-18
BE841838A (en) 1976-11-16
JPS5246994B2 (en) 1977-11-29
CS191306B2 (en) 1979-06-29
IT1061284B (en) 1983-02-28
ES447280A1 (en) 1977-06-16
SU841591A3 (en) 1981-06-23
AT352393B (en) 1979-09-10
DK213576A (en) 1976-11-17
NL160841B (en) 1979-07-16
CH601358A5 (en) 1978-07-14
CA1278638C (en) 1991-01-02
NO146284B (en) 1982-05-24
DD124253A5 (en) 1977-02-09
IE43107B1 (en) 1980-12-17
PL103008B1 (en) 1979-05-31
JPS51140985A (en) 1976-12-04
ATA354776A (en) 1979-02-15
DE2521780C2 (en) 1982-10-21
FR2311037A1 (en) 1976-12-10

Similar Documents

Publication Publication Date Title
IE43107L (en) Removing monomers from an aqueous pvc dispersion
BE847081A (en) TWO-STAGE ATTACK PROCESS OF NATURAL PRODUCTS CONTAINING XYLANE FOR THE RECOVERY OF XYLOSE,
CA2157593A1 (en) Separation of solutes in gaseous solvents
DE3785423D1 (en) METHOD FOR PRODUCING TRANSPARENT BLOCK COPOLYMERS.
CA2229207A1 (en) Recovery of caprolactam from nylon-6 scrap
EP0399573A3 (en) Process for recovery of amino acid from aqueous mixtures
JPS548693A (en) Removal of monomer from vinyl chloride resin slurry by steam treatment using improved plate column
GB1510339A (en) Process for the removal of vinyl chloride from aqueous vinyl chloride polymer dispersions
IE42595L (en) Removal of volatile constituents from plastics dispersions
GB1525077A (en) Solvent cleaning and recovery process
IE892912L (en) Process for separating 2-keto-l-gulonic acid from a¹fermented medium
ATE24475T1 (en) PROCESS FOR PURIFYING A MIXTURE OF WATER WITH C1-C2 ALCOHOLS DERIVED FROM THE INDUSTRIAL PRODUCTION OF ETHANOL USING AN EXTRACT AGENT.
BE836500A (en) PROCESS FOR ELIMINATION OF VINYL CHLORIDE IN MONOMERIC FORM REMAINING IN A POLYMER
GB1476597A (en) Monomer recovery method
ES8106919A1 (en) Solution polymerization with molecular sieve purification of recycled solvent
GB1281647A (en) Method for recovering monomers from acrylonitrile copolymerisation processes
GB1476596A (en) Method for recovering monomers
IE44309L (en) Polymerization
CA2096712A1 (en) Recovery of caprolactam from oligomers and/or polymers of caprolactam
AT356378B (en) METHOD FOR PRODUCING A POLYMER OF VINYL CHLORIDE, VINYLIDE CHLORIDE OR A MIXTURE MIXTURE THEREOF FROM THESE MONOMERS
ES474313A1 (en) Process for continuous removal of residual hydrocarbons from polyolefins.
GB1141783A (en) Purification of olefin polymers
GB1538891A (en) Continuous process for removing monomeric impurities from an aqueous dispersion of a homopolymer or copolymer of vinyl chloride
GB1515952A (en) Purification of polyvinyl chloride
GR3003364T3 (en) Process for the extractive separation of a carboxylic acid from an aqueous solution of said acid