ES447280A1 - Process for continuously removing monomers from an aqueous dispersion of a polymer - Google Patents

Process for continuously removing monomers from an aqueous dispersion of a polymer

Info

Publication number
ES447280A1
ES447280A1 ES447280A ES447280A ES447280A1 ES 447280 A1 ES447280 A1 ES 447280A1 ES 447280 A ES447280 A ES 447280A ES 447280 A ES447280 A ES 447280A ES 447280 A1 ES447280 A1 ES 447280A1
Authority
ES
Spain
Prior art keywords
polymer
approximately
aqueous dispersion
column
monomers
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
ES447280A
Other languages
Spanish (es)
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.)
Hoechst AG
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 ES447280A1 publication Critical patent/ES447280A1/en
Expired legal-status Critical Current

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Procedure for removing monomers from an aqueous dispersion of a polymer containing at least 50% by weight of polymerized vinyl chloride, characterized in that the dispersion is introduced at the top of a column equipped with perforated plates and is treated countercurrent with hot water vapor at approximately 100 to 150ºC under a pressure of approximately 600 to 1,200 Torr for approximately 10 seconds to 20 minutes, after which the polymer dispersion is removed from the bottom of the column, while the Vapor mixture that comes out of the upper part of the column is condensed in stages to obtain an aqueous phase as well as the monomers. (Machine-translation by Google Translate, not legally binding)
ES447280A 1975-05-16 1976-04-23 Process for continuously removing monomers from an aqueous dispersion of a polymer Expired ES447280A1 (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 (1)

Publication Number Publication Date
ES447280A1 true ES447280A1 (en) 1977-06-16

Family

ID=5946686

Family Applications (1)

Application Number Title Priority Date Filing Date
ES447280A Expired ES447280A1 (en) 1975-05-16 1976-04-23 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
DE2640592A1 (en) * 1976-09-09 1978-03-16 Hoechst Ag Fractionation column for removing monomer from polymer suspensions - which extracts volatiles while avoiding sedimentation
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
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
PL103008B1 (en) 1979-05-31
DE2521780A1 (en) 1976-11-18
DD124253A5 (en) 1977-02-09
LU74948A1 (en) 1977-02-14
NO761676L (en) 1976-11-17
NL160841B (en) 1979-07-16
NO146284B (en) 1982-05-24
DK213576A (en) 1976-11-17
IE43107L (en) 1976-11-16
HU174924B (en) 1980-04-28
CH601358A5 (en) 1978-07-14
FR2311037A1 (en) 1976-12-10
SU841591A3 (en) 1981-06-23
GB1497510A (en) 1978-01-12
ATA354776A (en) 1979-02-15
CS191306B2 (en) 1979-06-29
AT352393B (en) 1979-09-10
JPS5246994B2 (en) 1977-11-29
BE841838A (en) 1976-11-16
DE2521780C2 (en) 1982-10-21
IE43107B1 (en) 1980-12-17
CA1278638C (en) 1991-01-02
JPS51140985A (en) 1976-12-04
SE7602710L (en) 1976-11-17
IT1061284B (en) 1983-02-28
FR2311037B1 (en) 1981-12-31
YU121376A (en) 1982-02-28
NL7605200A (en) 1976-11-18

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