CA1025854A - Process for the purification of caprolactam - Google Patents

Process for the purification of caprolactam

Info

Publication number: CA1025854A
Authority: CA; Canada
Prior art keywords: caprolactam; purification
Prior art date: 1972-05-19
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.): Expired

Application number

CA171,718A

Other languages

French (fr)

Other versions

CA171718S (en

Inventor

Hans-Helmut Schwarz

Otto Immel

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.)

Bayer AG

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

1978-02-07

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

1978-02-07 Application granted granted Critical

1978-02-07 Publication of CA1025854A publication Critical patent/CA1025854A/en

Status Expired legal-status Critical Current

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)

CA171,718A 1972-05-19 1973-05-17 Process for the purification of caprolactam Expired CA1025854A (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
CA1025854A true CA1025854A (en)	1978-02-07

Family

ID=5845364

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA171,718A Expired CA1025854A (en)	1972-05-19	1973-05-17	Process for the purification of caprolactam

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 GB GB2352273A patent/GB1403341A/en not_active Expired
- 1973-05-17 IT IT5003173A patent/IT985180B/en active
- 1973-05-17 BE BE131211A patent/BE799659A/en not_active IP Right Cessation
- 1973-05-18 JP JP5481273A patent/JPS4954389A/ja active Pending
- 1973-05-18 FR FR7318175A patent/FR2185623B1/fr not_active Expired

Also Published As

Publication number	Publication date
FR2185623B1 (en)	1976-11-12
JPS4954389A (en)	1974-05-27
DE2224505B2 (en)	1980-01-17
FR2185623A1 (en)	1974-01-04
BE799659A (en)	1973-11-19
DE2224505A1 (en)	1973-12-06
IT985180B (en)	1974-11-30
NL7306843A (en)	1973-11-21
DE2224505C3 (en)	1980-09-18
GB1403341A (en)	1975-08-28

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