JPS543084A - Purification of lactam - Google Patents
Purification of lactamInfo
- Publication number
- JPS543084A JPS543084A JP6763677A JP6763677A JPS543084A JP S543084 A JPS543084 A JP S543084A JP 6763677 A JP6763677 A JP 6763677A JP 6763677 A JP6763677 A JP 6763677A JP S543084 A JPS543084 A JP S543084A
- Authority
- JP
- Japan
- Prior art keywords
- lactam
- purification
- polycapramide
- distillation
- exchange resin
- 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
Links
Landscapes
- Polyamides (AREA)
- Pyrrole Compounds (AREA)
Abstract
PURPOSE: To purify crude lactam obtained by the thermal depolymerization of polycapramide by the successive treatments comprising cation exchange resin treatment, ozone oxidation, and distillation.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6763677A JPS6021143B2 (en) | 1977-06-07 | 1977-06-07 | Lactam purification method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6763677A JPS6021143B2 (en) | 1977-06-07 | 1977-06-07 | Lactam purification method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS543084A true JPS543084A (en) | 1979-01-11 |
JPS6021143B2 JPS6021143B2 (en) | 1985-05-25 |
Family
ID=13350668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6763677A Expired JPS6021143B2 (en) | 1977-06-07 | 1977-06-07 | Lactam purification method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6021143B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5379122A (en) * | 1976-12-23 | 1978-07-13 | Yamada Kikai Kogyo Kk | Throttle lever device of powered mower and others |
JPH09163849A (en) * | 1995-12-19 | 1997-06-24 | Gifu Pref Gov | Bush slasher |
-
1977
- 1977-06-07 JP JP6763677A patent/JPS6021143B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5379122A (en) * | 1976-12-23 | 1978-07-13 | Yamada Kikai Kogyo Kk | Throttle lever device of powered mower and others |
JPS567500B2 (en) * | 1976-12-23 | 1981-02-18 | ||
JPH09163849A (en) * | 1995-12-19 | 1997-06-24 | Gifu Pref Gov | Bush slasher |
Also Published As
Publication number | Publication date |
---|---|
JPS6021143B2 (en) | 1985-05-25 |
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