FR2434825A1 - PROCESS FOR THE REMOVAL OF VINYL CHLORIDE FROM AN AQUEOUS POLYMERIZATION SLURRY - Google Patents

PROCESS FOR THE REMOVAL OF VINYL CHLORIDE FROM AN AQUEOUS POLYMERIZATION SLURRY

Info

Publication number
FR2434825A1
FR2434825A1 FR7921723A FR7921723A FR2434825A1 FR 2434825 A1 FR2434825 A1 FR 2434825A1 FR 7921723 A FR7921723 A FR 7921723A FR 7921723 A FR7921723 A FR 7921723A FR 2434825 A1 FR2434825 A1 FR 2434825A1
Authority
FR
France
Prior art keywords
vinyl chloride
aqueous
pipe
aqueous slurry
slurry
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.)
Granted
Application number
FR7921723A
Other languages
French (fr)
Other versions
FR2434825B1 (en
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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
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 Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Publication of FR2434825A1 publication Critical patent/FR2434825A1/en
Application granted granted Critical
Publication of FR2434825B1 publication Critical patent/FR2434825B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

L'invention est relative à un procédé pour l'élimination et la récupération de chlorure de vinyle résiduel dans une bouillie aqueuse obtenue après la polymérisation en suspension de chlorure de vinyle en milieu aqueux, caractérisé en ce qu'on transfère la bouillie aqueuse de polymérisation du réacteur vers un séparateur gaz-liquide à travers une première conduite, la bouillie aqueuse subissant ainsi une diminution de pression d'au moins 2 bar, ce qui entraîne dans cette première conduite une évaporation du monomère vinylique contenu dans la bouillie aqueuse, son temps de séjour dans cette première conduite n'étant pas inférieur à 0,05 sec., une pression du mélange qui est approximativement égale à la pression atmosphérique, et on soumet le mélange de bouillie aqueuse et de monomère gazeux à une séparation gaz-liquide dans un séparateur.The invention relates to a process for the elimination and recovery of residual vinyl chloride in an aqueous slurry obtained after the suspension polymerization of vinyl chloride in an aqueous medium, characterized in that the aqueous polymerization slurry is transferred from the reactor to a gas-liquid separator through a first pipe, the aqueous slurry thus undergoing a pressure reduction of at least 2 bar, which causes in this first pipe an evaporation of the vinyl monomer contained in the aqueous slurry, its time residence in this first pipe not being less than 0.05 sec., a pressure of the mixture which is approximately equal to atmospheric pressure, and the mixture of aqueous slurry and gaseous monomer is subjected to gas-liquid separation in a separator.

FR7921723A 1978-08-31 1979-08-30 PROCESS FOR THE REMOVAL OF VINYL CHLORIDE FROM AN AQUEOUS POLYMERIZATION SLURRY Granted FR2434825A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10688378A JPS5534243A (en) 1978-08-31 1978-08-31 Recovering method of unreacted monomer

Publications (2)

Publication Number Publication Date
FR2434825A1 true FR2434825A1 (en) 1980-03-28
FR2434825B1 FR2434825B1 (en) 1981-04-30

Family

ID=14444888

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7921723A Granted FR2434825A1 (en) 1978-08-31 1979-08-30 PROCESS FOR THE REMOVAL OF VINYL CHLORIDE FROM AN AQUEOUS POLYMERIZATION SLURRY

Country Status (5)

Country Link
JP (1) JPS5534243A (en)
DE (1) DE2935310A1 (en)
FR (1) FR2434825A1 (en)
GB (1) GB2028836B (en)
NL (1) NL7906512A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07122264B2 (en) * 1993-06-28 1995-12-25 不動建設株式会社 Soft ground improvement device
FR2805757B1 (en) 2000-03-02 2002-05-31 Solvay METHOD AND INSTALLATION FOR EXTRACTING A MONOMER FROM AN AQUEOUS FOUL CONTAINING A POLYMER
DE10323774A1 (en) * 2003-05-26 2004-12-16 Khd Humboldt Wedag Ag Process and plant for the thermal drying of a wet ground cement raw meal
EP1914250A1 (en) * 2006-10-12 2008-04-23 INEOS Manufacturing Belgium NV Polymer stream transfer
EP1914246A1 (en) * 2006-10-12 2008-04-23 INEOS Manufacturing Belgium NV Polymer stream transfer
PL2076545T3 (en) * 2006-10-12 2017-08-31 Ineos Manufacturing Belgium Nv Polymer stream transfer
US8597582B2 (en) 2011-06-30 2013-12-03 Chevron Phillips Chemical Company Lp Flashline heater system and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135990A (en) * 1975-05-20 1976-11-25 Shin Etsu Chem Co Ltd Method of removing residual monomers f rom polyvinylchloride slurries
DE2526728A1 (en) * 1975-06-14 1976-12-30 Huels Chemische Werke Ag CONTINUOUS PROCEDURE FOR THE REMOVAL OF MONOMERIC POLLUTIONS FROM Aqueous DISPERSIONS OF HOMOPOLYMERIZED AND COPOLYMERIZED VINYL CHLORIDE

Also Published As

Publication number Publication date
JPS616843B2 (en) 1986-03-01
GB2028836A (en) 1980-03-12
FR2434825B1 (en) 1981-04-30
DE2935310A1 (en) 1980-03-13
NL7906512A (en) 1980-03-04
GB2028836B (en) 1982-10-13
JPS5534243A (en) 1980-03-10

Similar Documents

Publication Publication Date Title
FR2377420A1 (en) CONTINUOUS MASS POLYMERIZATION PROCESS
GB1511908A (en) High hlb latex polymers
GB1458314A (en) Purifying used lubricating oils
FR2434825A1 (en) PROCESS FOR THE REMOVAL OF VINYL CHLORIDE FROM AN AQUEOUS POLYMERIZATION SLURRY
GB1510261A (en) Method of removing unreacted monomer from polymer
GB1507932A (en) Polymerisation catalyst component
DE1745386A1 (en) Process for the production of homo- or copolymers from vinyl
GB1480446A (en) Production of vinyl chloride homopolymers or copolymers
FR2418020A1 (en) METHOD AND APPARATUS FOR ESTABLISHING A LIQUID-LIQUID CONTACT
OA04068A (en) Process for the separation of particles from a liquid as well as a washing, classification and settling apparatus, suitable for the application of this method.
FR2392039A1 (en) MECHANICAL DEHYDRATION PROCESS OF ELASTOMER SUSPENSIONS
EA200000899A1 (en) METHOD OF OBTAINING POLYOLEFINS
FR2402668A1 (en) PROCESS FOR SEPARATING POLYOLEFINS MANUFACTURED AT LOW PRESSURE
FR2385745A1 (en) ETHYLENE POLYMERIZATION PROCESS, UNDER HIGH PRESSURE, WITH RECYCLING
FR2283155A1 (en) CONTINUOUS PROCESS FOR THE ELIMINATION OF MONOMERIC IMPURITIES FROM AQUEOUS DISPERSIONS OF HOMOPOLYMERIZATION AND COPOLYMERIZATION PRODUCTS OF VINYL CHLORIDE
US2829134A (en) Process for polymerizing vinyl chloride in aqueous emulsion
US4015064A (en) Manufacture of polyvinyl chloride of low vinyl chloride monomer content
FR2357594A1 (en) MOLTEN POLYMERIZATION OF EPSILON-CAPROLACTAM
Helin et al. Emulsion polymerization of ethylene. I. Polymerization formulas and conditions
FR2435484A1 (en) PROCESS FOR SEPARATING VINYL CHLORIDE FROM AQUEOUS DISPERSIONS OF VINYL CHLORIDE RESINS
GB827682A (en) Recovery of olefin polymers
US4226976A (en) Process for the removal of vinyl chloride from polyvinyl chloride latexes and slurries with hydrocarbon compounds
FR2389603A1 (en)
GB1476597A (en) Monomer recovery method
FR2400040A2 (en) HIGH PRESSURE IONIC POLYMERIZATION OF ETHYLENE CONTROL PROCESS

Legal Events

Date Code Title Description
ST Notification of lapse