JPS643137A - Purification of 2,4-xylenol - Google Patents

Purification of 2,4-xylenol

Info

Publication number
JPS643137A
JPS643137A JP15664187A JP15664187A JPS643137A JP S643137 A JPS643137 A JP S643137A JP 15664187 A JP15664187 A JP 15664187A JP 15664187 A JP15664187 A JP 15664187A JP S643137 A JPS643137 A JP S643137A
Authority
JP
Japan
Prior art keywords
xylenol
phenylenediamine
separated
purity
fractional distillation
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
JP15664187A
Other languages
Japanese (ja)
Other versions
JPH013137A (en
Inventor
Katsuji Watanabe
Toru Miura
Hitoshi Nakayama
Masayuki Furuya
Teruyuki Nagata
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP62-156641A priority Critical patent/JPH013137A/en
Priority claimed from JP62-156641A external-priority patent/JPH013137A/en
Publication of JPS643137A publication Critical patent/JPS643137A/en
Publication of JPH013137A publication Critical patent/JPH013137A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a high-purity 2,4-xylenol from a mixture of 2,4- and 2,5- xylenol isomers in high yield, by selectively crystallizing 2,4-xylenol as a molecular compound with p-phenylenediamine.
CONSTITUTION: A xylenol isomer mixture containing 2,4-xylenol and 2,5-xylenol which cannot be separated from each other by simple fractional distillation because of nearly equal boiling points is made to react with p-phenylenediamine usually at 0W212°C, preferably 60W180°C and a molecular compound of 2,4- xylenol and p-phenylenediamine is selectively crystallized. The crystallized compound is separated into 2,4-xylenol and p-phenylenediamine e.g. by the treatment with dilute mineral acids or fractional distillation. High-purity 2,4- xylenol useful as a raw material for synthetic polymer, etc., can separated from the above isomer mixture in an improved separation yield compared with conventional method.
COPYRIGHT: (C)1989,JPO&Japio
JP62-156641A 1987-06-25 Purification method of 2,4-xylenol Pending JPH013137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-156641A JPH013137A (en) 1987-06-25 Purification method of 2,4-xylenol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-156641A JPH013137A (en) 1987-06-25 Purification method of 2,4-xylenol

Publications (2)

Publication Number Publication Date
JPS643137A true JPS643137A (en) 1989-01-06
JPH013137A JPH013137A (en) 1989-01-06

Family

ID=

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003056189A (en) * 2001-08-20 2003-02-26 Taisei Corp Building
JP2006336232A (en) * 2005-05-31 2006-12-14 Toyo Tire & Rubber Co Ltd Rolling compaction machine, and rubber cushion member for rolling compaction machine
CN115557825A (en) * 2022-10-25 2023-01-03 黄河三角洲京博化工研究院有限公司 Method for separating high-purity mesitylene from reformed carbon nine by using composite solvent

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003056189A (en) * 2001-08-20 2003-02-26 Taisei Corp Building
JP2006336232A (en) * 2005-05-31 2006-12-14 Toyo Tire & Rubber Co Ltd Rolling compaction machine, and rubber cushion member for rolling compaction machine
CN115557825A (en) * 2022-10-25 2023-01-03 黄河三角洲京博化工研究院有限公司 Method for separating high-purity mesitylene from reformed carbon nine by using composite solvent

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