JPS5630409A - Method of feeding polymerization inhibitor - Google Patents
Method of feeding polymerization inhibitorInfo
- 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
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
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)
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)
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 |
US4967027A (en) * | 1987-12-22 | 1990-10-30 | Mitsubishi Petrochemical Co., Ltd. | Method of inhibiting polymerization of styrenes |
JP2527206B2 (en) * | 1987-12-22 | 1996-08-21 | 三菱化学株式会社 | 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4966687A (en) * | 1972-10-31 | 1974-06-27 | ||
JPS4981326A (en) * | 1972-12-13 | 1974-08-06 | ||
JPS4981325A (en) * | 1972-12-13 | 1974-08-06 |
Family Cites Families (2)
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 |
-
1979
- 1979-08-20 JP JP10566179A patent/JPS5630409A/en active Pending
-
1980
- 1980-08-08 GB GB8025899A patent/GB2056481B/en not_active Expired
- 1980-08-18 FR FR8018041A patent/FR2463759A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4966687A (en) * | 1972-10-31 | 1974-06-27 | ||
JPS4981326A (en) * | 1972-12-13 | 1974-08-06 | ||
JPS4981325A (en) * | 1972-12-13 | 1974-08-06 |
Cited By (1)
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 |
---|---|
GB2056481A (en) | 1981-03-18 |
FR2463759A1 (en) | 1981-02-27 |
GB2056481B (en) | 1983-04-27 |
FR2463759B1 (en) | 1984-05-11 |
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