BE799659A - CAPROLACTAM PURIFICATION PROCESS, - Google Patents

CAPROLACTAM PURIFICATION PROCESS,

Info

Publication number: BE799659A
Authority: BE; Belgium
Prior art keywords: purification process; caprolactam purification; caprolactam; purification
Prior art date: 1972-05-19

Application number

BE131211A

Other languages

French (fr)

Inventor

Otto Immel

Hans-Helmut Schwarz

Original Assignee

Bayer Ag

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.)

1972-05-19

Filing date

1973-05-17

Publication date

1973-11-19

1973-05-17 Application filed by Bayer Ag filed Critical Bayer Ag

1973-11-19 Publication of BE799659A publication Critical patent/BE799659A/en

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or purification

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Other In-Based Heterocyclic Compounds (AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Hydrogenated Pyridines (AREA)

BE131211A 1972-05-19 1973-05-17 CAPROLACTAM PURIFICATION PROCESS, BE799659A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19722224505 DE2224505C3 (en)	1972-05-19	1972-05-19	Process for purifying caprolactam

Publications (1)

Publication Number	Publication Date
BE799659A true BE799659A (en)	1973-11-19

Family

ID=5845364

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE131211A BE799659A (en)	1972-05-19	1973-05-17	CAPROLACTAM PURIFICATION PROCESS,

Country Status (8)

Country	Link
JP (1)	JPS4954389A (en)
BE (1)	BE799659A (en)
CA (1)	CA1025854A (en)
DE (1)	DE2224505C3 (en)
FR (1)	FR2185623B1 (en)
GB (1)	GB1403341A (en)
IT (1)	IT985180B (en)
NL (1)	NL7306843A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5212187A (en) *	1975-07-17	1977-01-29	Toray Ind Inc	Method of purifying alpha-amino-epsilon- caprolactam
DE2845075A1 (en) *	1978-10-17	1980-05-08	Basf Ag	METHOD FOR PURIFYING ROHCAPROLACTAM
IT1113404B (en) *	1979-02-28	1986-01-20	Snia Viscosa	INTERNATIONAL PATENTS S.R.L. VIA BRENTANO 2 MILAN
DE2939312C2 (en) *	1979-09-28	1984-01-05	Liba Maschinenfabrik Gmbh, 8674 Naila	Thread feed for warp knitting machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1416202A (en) *	1963-11-30	1965-10-29	Basf Ag	purification of pyrrolidone-2
FR1490312A (en) *	1965-09-11	1967-07-28	Zimmer Ag Hans J	Advanced process for the purification of epsilon-caprolactam

1972
- 1972-05-19 DE DE19722224505 patent/DE2224505C3/en not_active Expired
1973
- 1973-05-16 NL NL7306843A patent/NL7306843A/xx not_active Application Discontinuation
- 1973-05-17 CA CA171,718A patent/CA1025854A/en not_active Expired
- 1973-05-17 BE BE131211A patent/BE799659A/en not_active IP Right Cessation
- 1973-05-17 IT IT5003173A patent/IT985180B/en active
- 1973-05-17 GB GB2352273A patent/GB1403341A/en not_active Expired
- 1973-05-18 FR FR7318175A patent/FR2185623B1/fr not_active Expired
- 1973-05-18 JP JP5481273A patent/JPS4954389A/ja active Pending

Also Published As

Publication number	Publication date
NL7306843A (en)	1973-11-21
DE2224505A1 (en)	1973-12-06
FR2185623B1 (en)	1976-11-12
IT985180B (en)	1974-11-30
GB1403341A (en)	1975-08-28
DE2224505B2 (en)	1980-01-17
JPS4954389A (en)	1974-05-27
FR2185623A1 (en)	1974-01-04
DE2224505C3 (en)	1980-09-18
CA1025854A (en)	1978-02-07

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Legal Events

Date

Code

Title

Description

1984-11-30

RE

Patent lapsed

Owner name: BAYER A.G.,

Effective date: 19840517