NL8001177A - Werkwijze voor het zuiveren van caprolactam. - Google Patents

Werkwijze voor het zuiveren van caprolactam. Download PDF

Info

Publication number
NL8001177A
NL8001177A NL8001177A NL8001177A NL8001177A NL 8001177 A NL8001177 A NL 8001177A NL 8001177 A NL8001177 A NL 8001177A NL 8001177 A NL8001177 A NL 8001177A NL 8001177 A NL8001177 A NL 8001177A
Authority
NL
Netherlands
Prior art keywords
caprolactam
respect
process according
distillation
hydroxide
Prior art date
Application number
NL8001177A
Other languages
English (en)
Dutch (nl)
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.)
Filing date
Publication date
Application filed by Snia Viscosa filed Critical Snia Viscosa
Publication of NL8001177A publication Critical patent/NL8001177A/nl

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
NL8001177A 1979-02-28 1980-02-27 Werkwijze voor het zuiveren van caprolactam. NL8001177A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT20612/79A IT1113404B (it) 1979-02-28 1979-02-28 Internazionale brevetti s.r.l.via brentano 2 milano
IT2061279 1979-02-28

Publications (1)

Publication Number Publication Date
NL8001177A true NL8001177A (nl) 1980-09-01

Family

ID=11169534

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8001177A NL8001177A (nl) 1979-02-28 1980-02-27 Werkwijze voor het zuiveren van caprolactam.

Country Status (10)

Country Link
US (1) US4326925A (it)
JP (1) JPS55118457A (it)
BR (1) BR8001154A (it)
DE (1) DE3007338A1 (it)
ES (1) ES8103038A1 (it)
FR (1) FR2450255A1 (it)
GB (1) GB2043068A (it)
IT (1) IT1113404B (it)
MX (1) MX152276A (it)
NL (1) NL8001177A (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8020902A0 (it) * 1980-03-25 1980-03-25 Snia Viscosa Procedimento ed apparecchiatura per la separazione continua per via termica di miscele liquide dicomposti termolabili.
NL8102280A (nl) * 1981-05-09 1982-12-01 Stamicarbon Werkwijze voor het zuiveren van epsilon-caprolactam.
DE3729853A1 (de) * 1987-09-05 1989-03-23 Basf Ag Verfahren zur aufarbeitung von destillationsrueckstaenden, die bei der reinigung von caprolactam anfallen
NL1003564C2 (nl) * 1996-07-11 1998-01-15 Dsm Nv Werkwijze voor het scheiden van een ketoxim of aldoxim van een amide.
US5990306A (en) 1997-09-03 1999-11-23 Alliedsignal Inc. Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet
CN110494420B (zh) * 2017-12-15 2023-05-12 阿卡费尔斯洛有限公司 不使用有机溶剂萃取而从粗己内酰胺的溶液中纯化己内酰胺的方法
CN114478343B (zh) * 2022-02-24 2024-07-23 江苏扬农化工集团有限公司 己内酰胺的精制提纯方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156683A (en) * 1964-11-10 Purification of caprolactam
US3179657A (en) * 1965-04-20 Process for purifying caprolactam
DE739953C (de) * 1940-12-03 1943-10-26 Ig Farbenindustrie Ag Verfahren zur Reinigung von Lactamen
DE745224C (de) * 1941-06-28 1944-03-01 Ig Farbenindustrie Ag Verfahren zur Reinigung von Lactamen
FR1049130A (fr) * 1951-01-18 1953-12-28 Directie Staatsmijnen Nl Procédé pour enlever du caprolactame à des solutions de cotte-substance contenuesdans de l'acide sulfurique ou de l'oléum
FR1490895A (fr) * 1965-09-01 1967-08-04 Basf Ag Purification de laurolactame
DE2035859A1 (en) * 1969-09-09 1971-03-11 VEB Chemieanlagenbau Erfurt Rudis leben, χ 5211 Rudisieben Purification of thermally unstable mater- - ials eg caprolactam
DE2224505C3 (de) * 1972-05-19 1980-09-18 Bayer Ag Verfahren zur Reinigung von Caprolactam
IT956941B (it) * 1972-06-28 1973-10-10 Snia Viscosa Procedimento per la preparazione di lattame puro da sue soluzioni primarie in solvente organico
DE2641454A1 (de) * 1976-09-15 1978-03-23 Bayer Ag Verfahren zur reinigung von epsilon-caprolactam

Also Published As

Publication number Publication date
JPS55118457A (en) 1980-09-11
IT1113404B (it) 1986-01-20
DE3007338A1 (de) 1980-09-18
US4326925A (en) 1982-04-27
IT7920612A0 (it) 1979-02-28
FR2450255A1 (fr) 1980-09-26
GB2043068A (en) 1980-10-01
DE3007338C2 (it) 1992-02-13
ES488851A0 (es) 1981-02-16
ES8103038A1 (es) 1981-02-16
MX152276A (es) 1985-06-19
BR8001154A (pt) 1980-11-04

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed