CH525887A - Procedimento di purificazione di caprolattame, in particolare ottenuto per nitrosazione di composti cicloesilici - Google Patents

Procedimento di purificazione di caprolattame, in particolare ottenuto per nitrosazione di composti cicloesilici

Info

Publication number: CH525887A
Authority: CH; Switzerland
Prior art keywords: caprolactam; nitrosation; purification; amide; volatile bases
Prior art date: 1966-07-27

Application number

CH1015567A

Other languages

English (en)

Inventor

Siclari Francesco Dr Chim

Messina Giuseppe Dr Chim

Horak Edgardo Dr Chim

Original Assignee

Snia Viscosa

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.)

1966-07-27

Filing date

1967-07-17

Publication date

1972-07-31

1967-07-17 Application filed by Snia Viscosa filed Critical Snia Viscosa

1972-07-31 Publication of CH525887A publication Critical patent/CH525887A/it

Links

JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title abstract 12
230000009935 nitrosation Effects 0.000 title abstract 2
238000007034 nitrosation reaction Methods 0.000 title abstract 2
238000000746 purification Methods 0.000 title abstract 2
239000002585 base Substances 0.000 abstract 2
150000001875 compounds Chemical class 0.000 abstract 2
238000000034 method Methods 0.000 abstract 2
239000003513 alkali Substances 0.000 abstract 1
150000001408 amides Chemical class 0.000 abstract 1
150000001412 amines Chemical class 0.000 abstract 1
238000001311 chemical methods and process Methods 0.000 abstract 1
239000003795 chemical substances by application Substances 0.000 abstract 1
229910052736 halogen Inorganic materials 0.000 abstract 1
150000002367 halogens Chemical class 0.000 abstract 1
239000003456 ion exchange resin Substances 0.000 abstract 1
229920003303 ion-exchange polymer Polymers 0.000 abstract 1
238000011282 treatment Methods 0.000 abstract 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Other In-Based Heterocyclic Compounds (AREA)
Polyamides (AREA)

CH1015567A 1966-07-27 1967-07-17 Procedimento di purificazione di caprolattame, in particolare ottenuto per nitrosazione di composti cicloesilici CH525887A (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT1741466		1966-07-27

Publications (1)

Publication Number	Publication Date
CH525887A true CH525887A (it)	1972-07-31

Family

ID=11150314

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH1015567A CH525887A (it)	1966-07-27	1967-07-17	Procedimento di purificazione di caprolattame, in particolare ottenuto per nitrosazione di composti cicloesilici

Country Status (8)

Country	Link
US (1)	US3507856A (it)
AT (1)	AT278734B (it)
BE (1)	BE701920A (it)
CH (1)	CH525887A (it)
DE (1)	DE1695751A1 (it)
ES (1)	ES343466A1 (it)
GB (1)	GB1175279A (it)
NL (1)	NL6710394A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2007099029A2 (de) *	2006-02-24	2007-09-07	Basf Aktiengesellschaft	Verfahren zur reinigung von caprolactam, hergestellt aus lysin
WO2019228651A1 (de)	2018-06-01	2019-12-05	Uhde Inventa-Fischer Gmbh	Verfahren zum recycling von extraktwasser bei der polyamid 6-herstellung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2752336A (en) *		1956-06-26		For the pu
US2692878A (en) *		1954-10-26		Method forithe continuous produc-
US3145198A (en) *		1964-08-18		piija
US2828307A (en) *		1958-03-25		Karl h
US3406167A (en) *	1965-11-09	1968-10-15	Allied Chem	Purification of caprolactam

1967
- 1967-07-17 CH CH1015567A patent/CH525887A/it not_active IP Right Cessation
- 1967-07-18 AT AT669767A patent/AT278734B/de not_active IP Right Cessation
- 1967-07-19 US US654384A patent/US3507856A/en not_active Expired - Lifetime
- 1967-07-19 GB GB33197/67A patent/GB1175279A/en not_active Expired
- 1967-07-24 DE DE19671695751 patent/DE1695751A1/de active Pending
- 1967-07-27 NL NL6710394A patent/NL6710394A/xx unknown
- 1967-07-27 BE BE701920D patent/BE701920A/xx unknown
- 1967-07-27 ES ES343466A patent/ES343466A1/es not_active Expired

Also Published As

Publication number	Publication date
ES343466A1 (es)	1968-07-16
DE1695751A1 (de)	1971-04-22
NL6710394A (it)	1968-01-29
AT278734B (de)	1970-02-10
US3507856A (en)	1970-04-21
GB1175279A (en)	1969-12-23
BE701920A (it)	1968-01-29

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Legal Events

Date	Code	Title	Description
1974-02-28	PL	Patent ceased