JPS5653630A - Separating method of resorcin and hydroquinone - Google Patents

Separating method of resorcin and hydroquinone

Info

Publication number
JPS5653630A
JPS5653630A JP13036579A JP13036579A JPS5653630A JP S5653630 A JPS5653630 A JP S5653630A JP 13036579 A JP13036579 A JP 13036579A JP 13036579 A JP13036579 A JP 13036579A JP S5653630 A JPS5653630 A JP S5653630A
Authority
JP
Japan
Prior art keywords
hydroquinone
resorcin
rectifier
organic solvent
separate
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
JP13036579A
Other languages
Japanese (ja)
Other versions
JPS6249253B2 (en
Inventor
Hirokazu Hosaka
Kunihiko Tanaka
Toshiharu Morita
Katsuyuki Shioda
Yuji Ueda
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP13036579A priority Critical patent/JPS5653630A/en
Priority to US06/193,588 priority patent/US4308110A/en
Priority to DE19803037476 priority patent/DE3037476A1/en
Priority to CA361,613A priority patent/CA1130818A/en
Priority to GB8032273A priority patent/GB2061926B/en
Priority to FR8021516A priority patent/FR2467185A1/en
Priority to IT49849/80A priority patent/IT1143996B/en
Publication of JPS5653630A publication Critical patent/JPS5653630A/en
Publication of JPS6249253B2 publication Critical patent/JPS6249253B2/ja
Granted legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To separate resorcin and hydroquinone extremely effectively and in high purity, by the continuous rectification and recrystallization of a mixture containing the resorcin and hydroquinone.
CONSTITUTION: A mixture containing resorcin and hydroquinone is rectified continuously to give the weight ratio between resorcin and hydroquinone in the rectifier of 0.1:1W1:1, and the resorcin is separated as a distillate. The bottoms in the rectifier are directly recrystallized from water and/or an organic solvent, or redistilled preferably in the presence of steam. The resultant distillate is then recrystallized from water and/or an organic solvent, to separate the hydroquinone. The latter method is particularly effective for preventing the hydroquinone from coloring.
COPYRIGHT: (C)1981,JPO&Japio
JP13036579A 1979-10-09 1979-10-09 Separating method of resorcin and hydroquinone Granted JPS5653630A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP13036579A JPS5653630A (en) 1979-10-09 1979-10-09 Separating method of resorcin and hydroquinone
US06/193,588 US4308110A (en) 1979-10-09 1980-10-03 Process for separation and purification of dihydric phenols
DE19803037476 DE3037476A1 (en) 1979-10-09 1980-10-03 METHOD FOR SEPARATING RESORCIN AND HYDROQUINONE FROM OR FOR THE SEPARATION AND PURIFICATION OF HYDROQUINONE FROM POLLUTED RAW HYDROCHINONE
CA361,613A CA1130818A (en) 1979-10-09 1980-10-06 Process for separation and purification of dihydric phenols
GB8032273A GB2061926B (en) 1979-10-09 1980-10-07 Process for separation and purification of dihydic phenols
FR8021516A FR2467185A1 (en) 1979-10-09 1980-10-08 PROCESSES FOR SEPARATION AND PURIFICATION OF RESORCINOL AND HYDROQUINONE
IT49849/80A IT1143996B (en) 1979-10-09 1980-10-08 PROCEDURE FOR THE SEPARATION AND PURIFICATION OF BIVALENT PHENOLS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13036579A JPS5653630A (en) 1979-10-09 1979-10-09 Separating method of resorcin and hydroquinone

Publications (2)

Publication Number Publication Date
JPS5653630A true JPS5653630A (en) 1981-05-13
JPS6249253B2 JPS6249253B2 (en) 1987-10-19

Family

ID=15032625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13036579A Granted JPS5653630A (en) 1979-10-09 1979-10-09 Separating method of resorcin and hydroquinone

Country Status (1)

Country Link
JP (1) JPS5653630A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003512295A (en) * 1999-01-25 2003-04-02 ロディア・シミ Method and apparatus for separation and purification of diphenols in the phenol and phenol derivative industries
KR20050019667A (en) * 2003-08-20 2005-03-03 애경화학 주식회사 Separation of hydroxy-substituted aromatic compounds
JP2009541468A (en) * 2006-06-29 2009-11-26 ロデイア・オペラシヨン Process for the preparation of purified hydroquinone
JP2011506553A (en) * 2007-12-19 2011-03-03 ロデイア・オペラシヨン Method for preparing purified pyrocatechol

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003512295A (en) * 1999-01-25 2003-04-02 ロディア・シミ Method and apparatus for separation and purification of diphenols in the phenol and phenol derivative industries
KR20050019667A (en) * 2003-08-20 2005-03-03 애경화학 주식회사 Separation of hydroxy-substituted aromatic compounds
JP2009541468A (en) * 2006-06-29 2009-11-26 ロデイア・オペラシヨン Process for the preparation of purified hydroquinone
JP2011506553A (en) * 2007-12-19 2011-03-03 ロデイア・オペラシヨン Method for preparing purified pyrocatechol

Also Published As

Publication number Publication date
JPS6249253B2 (en) 1987-10-19

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