JPS57154179A - Recovery of tetrahydrofuran - Google Patents

Recovery of tetrahydrofuran

Info

Publication number
JPS57154179A
JPS57154179A JP3728381A JP3728381A JPS57154179A JP S57154179 A JPS57154179 A JP S57154179A JP 3728381 A JP3728381 A JP 3728381A JP 3728381 A JP3728381 A JP 3728381A JP S57154179 A JPS57154179 A JP S57154179A
Authority
JP
Japan
Prior art keywords
thf
compound
butanediol
distillation
polyester
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
JP3728381A
Other languages
Japanese (ja)
Other versions
JPS6011911B2 (en
Inventor
Tomiji Matsumoto
Hideo Komatsu
Kenji Terajima
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP3728381A priority Critical patent/JPS6011911B2/en
Publication of JPS57154179A publication Critical patent/JPS57154179A/en
Publication of JPS6011911B2 publication Critical patent/JPS6011911B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Furan Compounds (AREA)

Abstract

PURPOSE: To make a content of an aldehyde compound ≤ a specific amount, by treating the titled compound prepared as a by-product in the preparation process of a polyester comprising 1,4-butanediol as a main glycol component with a boron hydride compound, followed by distillation.
CONSTITUTION: Preferably 0.20W1.50wt% based on tetrahydrofuran (THF) of a compound shown by the formula MBH4(M is Li, K, Na) is added to a distillate containing THF obtained as a by-product in the preparation process of a polyester comprising 1,4-butanediol as a main glycol component. The distillate is heated at from room temperature W the boiling temperature, purified by distillation, to give THF having a content of aldehyde compound calculated as CHO of ≤50ppm, preferably ≤20ppm, inexpensively with eliminating the pro blems of pollution, etc., contributing greaty to save of resources, etc. This THF is capable of preparing stably high-quality polytetramethylene glycol having no discoloration, useful as a raw material for polyurethane.
COPYRIGHT: (C)1982,JPO&Japio
JP3728381A 1981-03-17 1981-03-17 How to recover tetrahydrofuran Expired JPS6011911B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3728381A JPS6011911B2 (en) 1981-03-17 1981-03-17 How to recover tetrahydrofuran

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3728381A JPS6011911B2 (en) 1981-03-17 1981-03-17 How to recover tetrahydrofuran

Publications (2)

Publication Number Publication Date
JPS57154179A true JPS57154179A (en) 1982-09-22
JPS6011911B2 JPS6011911B2 (en) 1985-03-28

Family

ID=12493367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3728381A Expired JPS6011911B2 (en) 1981-03-17 1981-03-17 How to recover tetrahydrofuran

Country Status (1)

Country Link
JP (1) JPS6011911B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005116111A1 (en) * 2004-05-11 2005-12-08 Zimmer Aktiengesellschaft Method for producing elastomeric copolyesters

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0423125Y2 (en) * 1987-03-31 1992-05-28
JPH0423127Y2 (en) * 1987-10-09 1992-05-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005116111A1 (en) * 2004-05-11 2005-12-08 Zimmer Aktiengesellschaft Method for producing elastomeric copolyesters
EA009917B1 (en) * 2004-05-11 2008-04-28 Лурги Циммер Гмбх Method for producing elastomeric copolyesters

Also Published As

Publication number Publication date
JPS6011911B2 (en) 1985-03-28

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