JPS55149249A - Purification of crude caprolactam containing amide and other byproducts - Google Patents

Purification of crude caprolactam containing amide and other byproducts

Info

Publication number: JPS55149249A
Authority: JP; Japan
Prior art keywords: byproducts; purification; containing amide; crude caprolactam; caprolactam containing
Prior art date: 1979-05-04
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.): Pending

Application number

JP5937880A

Other languages

English (en)

Inventor

Senni Paoro

Asutarita Domeniko

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.)

SNIA Viscosa SpA

Original Assignee

SNIA Viscosa SpA

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.)

1979-05-04

Filing date

1980-05-02

Publication date

1980-11-20

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11195124&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS55149249(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1980-05-02 Application filed by SNIA Viscosa SpA filed Critical SNIA Viscosa SpA

1980-11-20 Publication of JPS55149249A publication Critical patent/JPS55149249A/ja

Status Pending legal-status Critical Current

Links

JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title 2
150000001408 amides Chemical class 0.000 title 1
239000006227 byproduct Substances 0.000 title 1
238000000746 purification Methods 0.000 title 1

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)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Pyrrole Compounds (AREA)

JP5937880A 1979-05-04 1980-05-02 Purification of crude caprolactam containing amide and other byproducts Pending JPS55149249A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT22355/79A IT1112840B (it)	1979-05-04	1979-05-04	Metodo per la purificazione del caprolattame grezzo contenente ammidi e daltri sottoprodotti

Publications (1)

Publication Number	Publication Date
JPS55149249A true JPS55149249A (en)	1980-11-20

Family

ID=11195124

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP5937880A Pending JPS55149249A (en)	1979-05-04	1980-05-02	Purification of crude caprolactam containing amide and other byproducts

Country Status (14)

Country	Link
US (1)	US4293494A (ja)
JP (1)	JPS55149249A (ja)
AU (1)	AU538254B2 (ja)
BE (1)	BE883110A (ja)
BR (1)	BR8002641A (ja)
CA (1)	CA1132546A (ja)
DE (1)	DE3016335A1 (ja)
ES (1)	ES491101A0 (ja)
FR (1)	FR2455584A1 (ja)
GB (1)	GB2050354A (ja)
IN (1)	IN153035B (ja)
IT (1)	IT1112840B (ja)
MX (1)	MX153697A (ja)
NL (1)	NL8002554A (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10124579A1 (de) *	2001-05-21	2002-12-05	Bayer Ag	Verfahren und Vorrichtung zur Extraktion von Polyamid
US7022844B2 (en)	2002-09-21	2006-04-04	Honeywell International Inc.	Amide-based compounds, production, recovery, purification and uses thereof
CN107556240B (zh) *	2016-08-24	2020-10-30	沧州旭阳化工有限公司	一种己内酰胺精制方法及精制己内酰胺的系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2758991A (en) *		1956-08-14		Hvvevvtofry
FR1053885A (fr) *	1950-07-26	1954-02-05	Inventa Ag	Procédé de préparation en continu de lactames purs par extraction
US3359260A (en) *	1964-12-30	1967-12-19	Union Carbide Corp	Purification of epsilon-caprolactams
DE1670861A1 (de) *	1967-04-27	1971-03-11	Bayer Ag	Verfahren zur Reinigung von Lactamen
NL7700234A (nl) *	1977-01-12	1978-07-14	Stamicarbon	Werkwijze voor het winnen van epsilon-caprolac- tam uit epsilon-caprolactam- bevattend destil- latieresidu.

1979
- 1979-05-04 IT IT22355/79A patent/IT1112840B/it active
1980
- 1980-04-21 GB GB8013028A patent/GB2050354A/en not_active Withdrawn
- 1980-04-24 US US06/143,418 patent/US4293494A/en not_active Expired - Lifetime
- 1980-04-28 DE DE19803016335 patent/DE3016335A1/de not_active Withdrawn
- 1980-04-29 BR BR8002641A patent/BR8002641A/pt unknown
- 1980-04-30 MX MX182177A patent/MX153697A/es unknown
- 1980-05-02 AU AU58037/80A patent/AU538254B2/en not_active Ceased
- 1980-05-02 NL NL8002554A patent/NL8002554A/nl not_active Application Discontinuation
- 1980-05-02 JP JP5937880A patent/JPS55149249A/ja active Pending
- 1980-05-02 ES ES491101A patent/ES491101A0/es active Granted
- 1980-05-02 CA CA351,180A patent/CA1132546A/en not_active Expired
- 1980-05-03 IN IN513/CAL/80A patent/IN153035B/en unknown
- 1980-05-05 FR FR8009987A patent/FR2455584A1/fr active Pending
- 1980-05-05 BE BE2/466A patent/BE883110A/fr unknown

Also Published As

Publication number	Publication date
CA1132546A (en)	1982-09-28
IT1112840B (it)	1986-01-20
FR2455584A1 (fr)	1980-11-28
ES8104234A1 (es)	1981-04-01
BR8002641A (pt)	1980-12-09
DE3016335A1 (de)	1980-11-13
US4293494A (en)	1981-10-06
GB2050354A (en)	1981-01-07
NL8002554A (nl)	1980-11-06
MX153697A (es)	1986-12-19
AU538254B2 (en)	1984-08-02
AU5803780A (en)	1980-11-06
IT7922355A0 (it)	1979-05-04
IN153035B (ja)	1984-05-19
ES491101A0 (es)	1981-04-01
BE883110A (fr)	1980-11-05

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