JPS5785802A - Emergency stop of polymerization reaction - Google Patents

Emergency stop of polymerization reaction

Info

Publication number
JPS5785802A
JPS5785802A JP55162504A JP16250480A JPS5785802A JP S5785802 A JPS5785802 A JP S5785802A JP 55162504 A JP55162504 A JP 55162504A JP 16250480 A JP16250480 A JP 16250480A JP S5785802 A JPS5785802 A JP S5785802A
Authority
JP
Japan
Prior art keywords
polymerization
monomer
reaction
polymerization reaction
stop
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
JP55162504A
Other languages
Japanese (ja)
Other versions
JPH0150241B2 (en
Inventor
Yoshio Tomijima
Hiromitsu Tachibana
Shigeru Shibata
Yasuhiro Nojima
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry 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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP55162504A priority Critical patent/JPS5785802A/en
Priority to BE0/206556A priority patent/BE891137A/en
Priority to IN1265/CAL/81A priority patent/IN157811B/en
Priority to KR1019810004444A priority patent/KR870000342B1/en
Publication of JPS5785802A publication Critical patent/JPS5785802A/en
Publication of JPH0150241B2 publication Critical patent/JPH0150241B2/ja
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
    • C08F2/00—Processes of polymerisation
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • C08F2/42—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation using short-stopping agents
    • 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
    • C08F2/00—Processes of polymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00245—Avoiding undesirable reactions or side-effects
    • B01J2219/00272—Addition of reaction inhibitor

Landscapes

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

Abstract

PURPOSE: To stop a polymerization reaction effectively at the time of abnormal operation, by rapidly dispersing a polymerization inhibitor into the reaction system by charging the polymerization inhibitor into the reaction system and intermittently vaporizing and boiling the monomer.
CONSTITUTION: When something unusual such as a power failure or an agitator trouble happens in the course of an addition polymerization reaction, e.g., suspension polymerization or emulsion polymerization of vinyl chloride or the like, and there is a need to stop the polymerization reaction, about 0.0001W1pt.wt. (per 100pts.wt. monomer), polymerization inhibitor, e.g., hydroquinone or nitrohydroxylamine, is charged into the polymerization system and then the monomer in the polymerization system is intermittently vaporized and boiled. The intermittent vaporization and boiling of the monomer is carried out, for example, in the following way: a reactor release valve open to the atmosphere is kept open for a definite length of time to release the monomer into the atmosphere and thereby to vaporize and boil the monomer in the reaction system and then the release valve is shut. This operation is repeated several times.
COPYRIGHT: (C)1982,JPO&Japio
JP55162504A 1980-11-17 1980-11-17 Emergency stop of polymerization reaction Granted JPS5785802A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP55162504A JPS5785802A (en) 1980-11-17 1980-11-17 Emergency stop of polymerization reaction
BE0/206556A BE891137A (en) 1980-11-17 1981-11-16 PROCESS FOR THE EMERGENCY STOP OF A POLYMERIZATION REACTION
IN1265/CAL/81A IN157811B (en) 1980-11-17 1981-11-16
KR1019810004444A KR870000342B1 (en) 1980-11-17 1981-11-17 A method for emergency stopping of a polymerization reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55162504A JPS5785802A (en) 1980-11-17 1980-11-17 Emergency stop of polymerization reaction

Publications (2)

Publication Number Publication Date
JPS5785802A true JPS5785802A (en) 1982-05-28
JPH0150241B2 JPH0150241B2 (en) 1989-10-27

Family

ID=15755868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55162504A Granted JPS5785802A (en) 1980-11-17 1980-11-17 Emergency stop of polymerization reaction

Country Status (4)

Country Link
JP (1) JPS5785802A (en)
KR (1) KR870000342B1 (en)
BE (1) BE891137A (en)
IN (1) IN157811B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6465682B2 (en) 2000-09-22 2002-10-15 Nippon Shokubai Co., Ltd. Production process for hydroxyalkyl ester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6465682B2 (en) 2000-09-22 2002-10-15 Nippon Shokubai Co., Ltd. Production process for hydroxyalkyl ester

Also Published As

Publication number Publication date
IN157811B (en) 1986-06-28
JPH0150241B2 (en) 1989-10-27
BE891137A (en) 1982-05-17
KR830007718A (en) 1983-11-04
KR870000342B1 (en) 1987-03-04

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