GB1294614A - A process for the purification of caprolactam - Google Patents

A process for the purification of caprolactam

Info

Publication number
GB1294614A
GB1294614A GB00347/71A GB1034771A GB1294614A GB 1294614 A GB1294614 A GB 1294614A GB 00347/71 A GB00347/71 A GB 00347/71A GB 1034771 A GB1034771 A GB 1034771A GB 1294614 A GB1294614 A GB 1294614A
Authority
GB
United Kingdom
Prior art keywords
lactam
phase
caprolactam
hydrocarbon
april
Prior art date
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
GB00347/71A
Other languages
English (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.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB1294614A publication Critical patent/GB1294614A/en
Expired legal-status Critical Current

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrrole Compounds (AREA)
GB00347/71A 1970-04-22 1971-04-21 A process for the purification of caprolactam Expired GB1294614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2019431A DE2019431C2 (de) 1970-04-22 1970-04-22 Verfahren zur Reinigung von Caprolactam

Publications (1)

Publication Number Publication Date
GB1294614A true GB1294614A (en) 1972-11-01

Family

ID=5768844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB00347/71A Expired GB1294614A (en) 1970-04-22 1971-04-21 A process for the purification of caprolactam

Country Status (9)

Country Link
US (1) US3755305A (enExample)
BE (1) BE766138A (enExample)
CA (1) CA921481A (enExample)
CH (1) CH553784A (enExample)
DE (1) DE2019431C2 (enExample)
ES (1) ES390416A1 (enExample)
FR (1) FR2086263B1 (enExample)
GB (1) GB1294614A (enExample)
NL (1) NL7104914A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641454A1 (de) * 1976-09-15 1978-03-23 Bayer Ag Verfahren zur reinigung von epsilon-caprolactam
DE2926279A1 (de) * 1979-06-29 1981-01-08 Basf Ag Verfahren zur reinigung von caprolactam
TW215084B (en) * 1992-04-17 1993-10-21 Sumitomo Chemical Co Process for producing a high purity caprolactam

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692878A (en) * 1954-10-26 Method forithe continuous produc-
US2758991A (en) * 1956-08-14 Hvvevvtofry
US2221369A (en) * 1940-11-12 Process foe producing lactams
US2861988A (en) * 1958-11-25 Caprolactam manufacture
CH450433A (de) * 1965-06-15 1968-01-31 Inventa Ag Verfahren zur Reinigung von Lactamen
GB1198428A (en) * 1967-07-18 1970-07-15 Bp Chem Int Ltd Solvent Extraction Process for Caprolactam

Also Published As

Publication number Publication date
FR2086263A1 (enExample) 1971-12-31
US3755305A (en) 1973-08-28
DE2019431C2 (de) 1981-10-15
BE766138A (fr) 1971-09-16
CH553784A (de) 1974-09-13
ES390416A1 (es) 1973-06-01
NL7104914A (enExample) 1971-10-26
DE2019431A1 (de) 1971-11-04
FR2086263B1 (enExample) 1975-07-04
CA921481A (en) 1973-02-20

Similar Documents

Publication Publication Date Title
GB1279362A (en) Single stage crystallization process for separating high purity paraxylene
GB1294614A (en) A process for the purification of caprolactam
GB1231991A (enExample)
GB1498995A (en) Method for separating and recovering hydroquinone
GB1361922A (en) Process for purifying lactams
US3069412A (en) N-aminoazetidine and preparation thereof
GB1497233A (en) Triethylenediamine recovery
KR890016014A (ko) 고순도 카프로락탐의 제조방법
US3222349A (en) Method for separating hydrocarbons
US2988546A (en) Lactam
GB1318459A (en) Process for purifying lactams
US3767724A (en) Extractive crystallization method for the separation of mixtures of alkenes and alkanes
GB1495481A (en) Process for the obtaining of isobutylene of high purity
GB1208364A (en) Purification process involving two crystallization stages for separating paraxylene from an aromatic hydrocarbon fraction
US3956394A (en) Process for purifying p-tolualdehyde
GB1283435A (en) Improved secondary butanol purification process
US3882102A (en) Process for the purification of caprolactam
GB1477081A (en) Purifying oximes
GB1229099A (enExample)
US4032581A (en) Method for separation of m- or p-cresol
GB1247550A (en) PROCESS FOR REFINING BIS-(beta-HYDROXYETHYL) TEREPHTHALATE
Ogata et al. The Synthesis of Bicyclic Lactam Ether
GB1249783A (en) Concentration of aqueous acetic acid
US3530195A (en) Separation and purification of durene
GB1275865A (en) Process for purifying isophthalic acid

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee