MY113571A - Process for the preparation of e-caprolactam - Google Patents
Process for the preparation of e-caprolactamInfo
- Publication number
- MY113571A MY113571A MYPI96000021A MYPI19960021A MY113571A MY 113571 A MY113571 A MY 113571A MY PI96000021 A MYPI96000021 A MY PI96000021A MY PI19960021 A MYPI19960021 A MY PI19960021A MY 113571 A MY113571 A MY 113571A
- Authority
- MY
- Malaysia
- Prior art keywords
- caprolactam
- subjecting
- oxime
- cyclohexanone
- reaction
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Catalysts (AREA)
Abstract
THE PRESENT INVENTION PROVIDES A METHOD FOR PRODUCING E-CAPROLACTAM, WHICH COMPRISES SUBJECTING CYCLOHEXENE TO A HYDRATION REACTION TO OBTAIN CYCLOHEXANOL, SUBJECTING THE CYCLOHEXANOL TO A DEHYDROGENATION REACTION TO OBTAIN CYCLOHEXANONE, SUBJECTING THE CYCLOHEXANORIE TO AN OXIME-FORMING REACTIONN TO OBTAIN CYCLOHEXANONE OXIME, AND SUBJECTING THE CYCLOHEXANONE OXIME TO A BECKMANN REARRANGEMENT REACTION TO OBTAIN E-CAPROLACTAM, WHEREIN METHYLCYCLOPENTANONES CONTAINED IN THE CYCLOHEXANONE SUBJECTED TO THE OXIME-FORMING REACTION ARE CONTROLL.ED TO BE NOT MORE THAN 400 PPM. ACCORDING TO THE PRESENT INVENTION, IT IS POSSIBLE TO PRODUCE E-CAPROLACTAM HAVING A QUALITY NOT INFERIOR TO CONVENTIONAL QUALITY AT A LOW COST.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP00340395A JP3789504B2 (en) | 1995-01-12 | 1995-01-12 | Method for producing ε-caprolactam |
JP18413195 | 1995-07-20 | ||
JP18413295A JPH0931052A (en) | 1995-07-20 | 1995-07-20 | Production of epsilon-caprolactam |
Publications (1)
Publication Number | Publication Date |
---|---|
MY113571A true MY113571A (en) | 2002-04-30 |
Family
ID=27275806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI96000021A MY113571A (en) | 1995-01-12 | 1996-01-04 | Process for the preparation of e-caprolactam |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN1062558C (en) |
IN (1) | IN187136B (en) |
MY (1) | MY113571A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102001999B (en) * | 2010-11-02 | 2012-05-02 | 河北工业大学 | Process for directly synthesizing caprolactam from cyclohexanone and hydroxylamine |
CN110483330B (en) * | 2019-09-18 | 2023-12-01 | 湖南百利工程科技股份有限公司 | Cyclohexanone oxime crystallization refining method and application thereof in caprolactam preparation |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60104028A (en) * | 1983-11-09 | 1985-06-08 | Asahi Chem Ind Co Ltd | Production of cyclic alcohol |
JP2873864B2 (en) * | 1990-06-05 | 1999-03-24 | 旭化成工業株式会社 | Method for producing high-purity cyclohexanol |
-
1996
- 1996-01-04 MY MYPI96000021A patent/MY113571A/en unknown
- 1996-01-04 IN IN21CA1996 patent/IN187136B/en unknown
- 1996-01-10 CN CN96101020A patent/CN1062558C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1138576A (en) | 1996-12-25 |
IN187136B (en) | 2002-02-09 |
CN1062558C (en) | 2001-02-28 |
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