JPH04182444A - Method for purifying 3,5-xylenol - Google Patents

Method for purifying 3,5-xylenol

Info

Publication number
JPH04182444A
JPH04182444A JP31140190A JP31140190A JPH04182444A JP H04182444 A JPH04182444 A JP H04182444A JP 31140190 A JP31140190 A JP 31140190A JP 31140190 A JP31140190 A JP 31140190A JP H04182444 A JPH04182444 A JP H04182444A
Authority
JP
Japan
Prior art keywords
xylenol
fraction
heptane
purity
pts
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
JP31140190A
Inventor
Yumi Nakai
Masafumi Sekino
Ryozo Shimizu
Original Assignee
Ado Kemuko Kk
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 Ado Kemuko Kk filed Critical Ado Kemuko Kk
Priority to JP31140190A priority Critical patent/JPH04182444A/en
Publication of JPH04182444A publication Critical patent/JPH04182444A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To achieve high purity and yield by adding n-heptane to a 3,5-xylenol fraction separated from a tar fraction, cooling the resultant mixture and separating a solid from the liquid in obtaining the 3,5-xylenol from the tar fraction.
CONSTITUTION: n-Heptane (in an amount of preferably about 100-300 pts.wt. based on 100 pts.wt. 3,5-xylenol fraction) is added to the 3,5-xylenol fraction (having preferably 73-88wt.% purity of the 3,5-xylenol) obtained by a means such as distillation from a tar fraction and the resultant mixture is cooled to about 0 to -20°C. A solid is separated from the liquid to afford the objective high-purity 3,5-xylenol at a high recovery ratio. Purification can advantageously be performed simply by washing crystals containing the 3,5-xylenol with the n-heptane according to the aforementioned method.
COPYRIGHT: (C)1992,JPO&Japio
JP31140190A 1990-11-19 1990-11-19 Method for purifying 3,5-xylenol Pending JPH04182444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31140190A JPH04182444A (en) 1990-11-19 1990-11-19 Method for purifying 3,5-xylenol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31140190A JPH04182444A (en) 1990-11-19 1990-11-19 Method for purifying 3,5-xylenol

Publications (1)

Publication Number Publication Date
JPH04182444A true JPH04182444A (en) 1992-06-30

Family

ID=18016754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31140190A Pending JPH04182444A (en) 1990-11-19 1990-11-19 Method for purifying 3,5-xylenol

Country Status (1)

Country Link
JP (1) JPH04182444A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9361907B2 (en) 2011-01-18 2016-06-07 Sony Corporation Sound signal processing apparatus, sound signal processing method, and program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9361907B2 (en) 2011-01-18 2016-06-07 Sony Corporation Sound signal processing apparatus, sound signal processing method, and program

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