JPS60199873A - ε−カプロラクタムの回収方法 - Google Patents

ε−カプロラクタムの回収方法

Info

Publication number
JPS60199873A
JPS60199873A JP5432184A JP5432184A JPS60199873A JP S60199873 A JPS60199873 A JP S60199873A JP 5432184 A JP5432184 A JP 5432184A JP 5432184 A JP5432184 A JP 5432184A JP S60199873 A JPS60199873 A JP S60199873A
Authority
JP
Japan
Prior art keywords
caprolactam
extracted
epsilon
distilled
sulfuric acid
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
JP5432184A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0149349B2 (enrdf_load_stackoverflow
Inventor
Norisuke Yoshifuku
吉福　教典
Keiji Ekoshi
江越　敬二
Yasuhiro Kurokawa
黒川　康弘
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP5432184A priority Critical patent/JPS60199873A/ja
Publication of JPS60199873A publication Critical patent/JPS60199873A/ja
Publication of JPH0149349B2 publication Critical patent/JPH0149349B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP5432184A 1984-03-23 1984-03-23 ε−カプロラクタムの回収方法 Granted JPS60199873A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5432184A JPS60199873A (ja) 1984-03-23 1984-03-23 ε−カプロラクタムの回収方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5432184A JPS60199873A (ja) 1984-03-23 1984-03-23 ε−カプロラクタムの回収方法

Publications (2)

Publication Number Publication Date
JPS60199873A true JPS60199873A (ja) 1985-10-09
JPH0149349B2 JPH0149349B2 (enrdf_load_stackoverflow) 1989-10-24

Family

ID=12967321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5432184A Granted JPS60199873A (ja) 1984-03-23 1984-03-23 ε−カプロラクタムの回収方法

Country Status (1)

Country Link
JP (1) JPS60199873A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04187671A (ja) * 1990-11-21 1992-07-06 Ube Ind Ltd ラクタム油の精製方法
WO1997030028A3 (en) * 1996-02-17 1997-09-25 Dsm Nv Recovery of epsilon-caprolactam from aqueous mixtures
EP0826665A1 (en) * 1996-09-02 1998-03-04 Dsm N.V. Recovery of epsilon-caprolactam from aqueous mixtures
JP2003507294A (ja) * 1999-08-17 2003-02-25 ディーエスエム エヌ．ブイ． 硫酸アンモニウム溶液相と水性ラクタム相とを含む混合物を処理する方法
CN109678754A (zh) * 2017-10-19 2019-04-26 万华化学集团股份有限公司 一种11-氰基十一酸的制备方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04187671A (ja) * 1990-11-21 1992-07-06 Ube Ind Ltd ラクタム油の精製方法
WO1997030028A3 (en) * 1996-02-17 1997-09-25 Dsm Nv Recovery of epsilon-caprolactam from aqueous mixtures
EP0826665A1 (en) * 1996-09-02 1998-03-04 Dsm N.V. Recovery of epsilon-caprolactam from aqueous mixtures
JP2003507294A (ja) * 1999-08-17 2003-02-25 ディーエスエム エヌ．ブイ． 硫酸アンモニウム溶液相と水性ラクタム相とを含む混合物を処理する方法
CN109678754A (zh) * 2017-10-19 2019-04-26 万华化学集团股份有限公司 一种11-氰基十一酸的制备方法
CN109678754B (zh) * 2017-10-19 2021-09-07 万华化学集团股份有限公司 一种11-氰基十一酸的制备方法

Also Published As

Publication number Publication date
JPH0149349B2 (enrdf_load_stackoverflow) 1989-10-24

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