JPS5630409A - Method of feeding polymerization inhibitor - Google Patents

Method of feeding polymerization inhibitor

Info

Publication number
JPS5630409A
JPS5630409A JP10566179A JP10566179A JPS5630409A JP S5630409 A JPS5630409 A JP S5630409A JP 10566179 A JP10566179 A JP 10566179A JP 10566179 A JP10566179 A JP 10566179A JP S5630409 A JPS5630409 A JP S5630409A
Authority
JP
Japan
Prior art keywords
styrenes
polymerization inhibitor
polymerization
solution
nitrosophenol
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.)
Pending
Application number
JP10566179A
Other languages
Japanese (ja)
Inventor
Hideyuki Takahashi
Shizuo Sakai
Kazuhiko Konno
Kunio Uchimura
Norio Sasaki
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Petrochemical 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 Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP10566179A priority Critical patent/JPS5630409A/en
Priority to GB8025899A priority patent/GB2056481B/en
Priority to FR8018041A priority patent/FR2463759A1/en
Publication of JPS5630409A publication Critical patent/JPS5630409A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/20—Use of additives, e.g. for stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To prevent polymerization, by dissolving a nitrosophenol, a polymerization inhibitor difficultly soluble in styrenes, in a specified alcohol, ketone or aldehyde, and continuously feeding the resulting solution in the process for refining styrenes by distillation.
CONSTITUTION: (i) A nitrosphenol (e.g, P-nitrosophenol) is dissolved in (ii) a solvent (mixture) selected from an alcohol (e.g. methanol), ketone (e.g.; acetone) or aldehyde (e.g., butyraldehyde), having boiling pt ≤100°C and, if necessary, containing an aromatic compound (e.g., benzene), to obtain a solution of a polymerization inhibitor containing 5W30wt% of component (i). In the purification, by distillation, of a reaction product containing styrenes prepared by the dehydrogenation of ethylbenzene etc., polymerization is inhibited by continuously feeding said solution.
EFFECT: No clogging of a feeder.
COPYRIGHT: (C)1981,JPO&Japio
JP10566179A 1979-08-20 1979-08-20 Method of feeding polymerization inhibitor Pending JPS5630409A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP10566179A JPS5630409A (en) 1979-08-20 1979-08-20 Method of feeding polymerization inhibitor
GB8025899A GB2056481B (en) 1979-08-20 1980-08-08 Feeding nitrosophenols as polymerization inhibitors
FR8018041A FR2463759A1 (en) 1979-08-20 1980-08-18 PROCESS FOR INTRODUCING NITROSOPHENOLS AS POLYMERIZATION INHIBITORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10566179A JPS5630409A (en) 1979-08-20 1979-08-20 Method of feeding polymerization inhibitor

Publications (1)

Publication Number Publication Date
JPS5630409A true JPS5630409A (en) 1981-03-27

Family

ID=14413613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10566179A Pending JPS5630409A (en) 1979-08-20 1979-08-20 Method of feeding polymerization inhibitor

Country Status (3)

Country Link
JP (1) JPS5630409A (en)
FR (1) FR2463759A1 (en)
GB (1) GB2056481B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188508A (en) * 1984-03-05 1985-09-26 Nippon Solid Co Ltd Prevention of sludge diffusion in reclamation site

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376678A (en) 1982-07-29 1983-03-15 American Hoechst Corporation Method of inhibiting polymerization of vinyl aromatic compounds
US4654451A (en) * 1985-12-27 1987-03-31 Atlantic Richfield Company Inhibiting polymerization of vinyl aromatic monomers
JP2527206B2 (en) * 1987-12-22 1996-08-21 三菱化学株式会社 Method of inhibiting polymerization of styrenes
US4967027A (en) * 1987-12-22 1990-10-30 Mitsubishi Petrochemical Co., Ltd. Method of inhibiting polymerization of styrenes
JPH04502925A (en) * 1989-04-13 1992-05-28 ベイカー　パフォーマンス　ケミカルズ　インコーポレイテッド Styrene polymerization inhibitor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966687A (en) * 1972-10-31 1974-06-27
JPS4981325A (en) * 1972-12-13 1974-08-06
JPS4981326A (en) * 1972-12-13 1974-08-06

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1064845A (en) * 1966-03-10 1967-04-12 Ferenc Tudos Inhibiting polymerisation
US3527822A (en) * 1969-04-16 1970-09-08 Shell Oil Co Divinylbenzene polymerization inhibitors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966687A (en) * 1972-10-31 1974-06-27
JPS4981325A (en) * 1972-12-13 1974-08-06
JPS4981326A (en) * 1972-12-13 1974-08-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188508A (en) * 1984-03-05 1985-09-26 Nippon Solid Co Ltd Prevention of sludge diffusion in reclamation site

Also Published As

Publication number Publication date
FR2463759A1 (en) 1981-02-27
GB2056481A (en) 1981-03-18
FR2463759B1 (en) 1984-05-11
GB2056481B (en) 1983-04-27

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