CA989830A - Process for preparing and recovering lactams - Google Patents
Process for preparing and recovering lactamsInfo
- Publication number
- CA989830A CA989830A CA141,066A CA141066A CA989830A CA 989830 A CA989830 A CA 989830A CA 141066 A CA141066 A CA 141066A CA 989830 A CA989830 A CA 989830A
- Authority
- CA
- Canada
- Prior art keywords
- lactams
- recovering
- preparing
- recovering lactams
- 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
Links
- 150000003951 lactams Chemical class 0.000 title 1
- 238000004519 manufacturing process 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/04—Preparation of lactams from or via oximes by Beckmann rearrangement
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7106341.A NL162375C (nl) | 1971-05-07 | 1971-05-07 | Verbeterde werkwijze voor de bereiding en winning van lactamen. |
NL7115110A NL7115110A (en) | 1971-11-03 | 1971-11-03 | Lactams - by intramoleculr reaction of corresponding - ketoximes in sulphuric acid medium |
Publications (1)
Publication Number | Publication Date |
---|---|
CA989830A true CA989830A (en) | 1976-05-25 |
Family
ID=26644654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA141,066A Expired CA989830A (en) | 1971-05-07 | 1972-05-02 | Process for preparing and recovering lactams |
Country Status (15)
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2130037B2 (de) * | 1971-06-18 | 1977-02-10 | Davy Powergas GmbH, 5000Köln | Verfahren zur herstellung von lactamen |
DE2130036B2 (de) * | 1971-06-18 | 1977-02-10 | Davy Powergas GmbH, 5000 Köln | Verfahren zur herstellung von lactamen |
NL7308100A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-06-12 | 1974-12-16 | ||
NL7308834A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-06-26 | 1974-12-30 | ||
CH593934A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-09-03 | 1977-12-30 | Inventa Ag | |
JPS523261A (en) * | 1975-06-24 | 1977-01-11 | Sumitomo Chem Co Ltd | Purification method for polluted water |
NL7601061A (nl) * | 1976-02-03 | 1977-08-05 | Stamicarbon | Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactamzwavelzuur-reac- tiemengsel. |
NL7607047A (nl) * | 1976-06-28 | 1977-12-30 | Stamicarbon | Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactam-zwavelzuur- -reactiemengsel. |
DE2656182C3 (de) * | 1976-12-11 | 1979-10-04 | Basf Ag, 6700 Ludwigshafen | Verfahren zur kontinuierlichen Extraktion von Caprolactam aus Wasser enthaltendem Rohlactam |
DE4132498A1 (de) * | 1991-09-30 | 1993-04-01 | Basf Ag | Verfahren zur herstellung von caprolactam durch beckmann'sche umlagerung von cyclohexanonoxim |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3133055A (en) * | 1964-05-12 | Production ofcaprolactam | ||
NL282684A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1961-08-30 | 1900-01-01 | ||
DE1199243B (de) * | 1963-07-10 | 1965-08-26 | Huels Chemische Werke Ag | Verfahren zur Herstellung schwefeldioxydhaltiger Gase aus ammoniumsalzhaltigen Abfallschwefelsaeuren |
NL136780C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1963-10-31 | |||
GB1084096A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1963-12-03 | 1900-01-01 | ||
DE1229995B (de) * | 1964-01-17 | 1966-12-08 | Chemiebau Dr A Zieren Ges Mit | Verfahren zur Gewinnung von Ammoniak und Schwefeldioxyd |
NL144600B (nl) * | 1964-03-07 | 1975-01-15 | Stamicarbon | Afscheiding van lactamen uit een sterk zwavelzuur milieu. |
US3404947A (en) * | 1966-02-14 | 1968-10-08 | Standard Oil Co | Process for waste disposal |
US3694433A (en) * | 1971-08-27 | 1972-09-26 | Allied Chem | Method for the recovery of caprolactam |
-
1972
- 1972-05-02 US US00249727A patent/US3852273A/en not_active Expired - Lifetime
- 1972-05-02 CA CA141,066A patent/CA989830A/en not_active Expired
- 1972-05-03 IL IL39345A patent/IL39345A/xx unknown
- 1972-05-03 AU AU41855/72A patent/AU459340B2/en not_active Expired
- 1972-05-05 CH CH671772A patent/CH605736A5/xx not_active IP Right Cessation
- 1972-05-05 AT AT395672A patent/AT316573B/de active
- 1972-05-05 DD DD162817A patent/DD96236A5/xx unknown
- 1972-05-05 BE BE783100A patent/BE783100A/xx unknown
- 1972-05-05 DE DE19722222216 patent/DE2222216A1/de not_active Ceased
- 1972-05-06 IT IT50094/72A patent/IT957747B/it active
- 1972-05-06 BG BG020415A patent/BG26667A3/xx unknown
- 1972-05-06 ES ES402472A patent/ES402472A1/es not_active Expired
- 1972-05-08 FR FR7216368A patent/FR2137622B1/fr not_active Expired
- 1972-05-08 JP JP47045286A patent/JPS528320B1/ja active Pending
- 1972-05-08 SE SE7206066A patent/SE377334B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IT957747B (it) | 1973-10-20 |
FR2137622B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-08-24 |
IL39345A (en) | 1975-07-28 |
DD96236A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-03-12 |
US3852273A (en) | 1974-12-03 |
BG26667A3 (bg) | 1979-05-15 |
SE377334B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-06-30 |
ES402472A1 (es) | 1975-04-01 |
AT316573B (de) | 1974-07-25 |
FR2137622A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-12-29 |
AU459340B2 (en) | 1975-03-20 |
DE2222216A1 (de) | 1972-11-23 |
JPS528320B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-03-08 |
BE783100A (fr) | 1972-11-06 |
CH605736A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-10-13 |
AU4185572A (en) | 1973-11-08 |
IL39345A0 (en) | 1972-07-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA972755A (en) | 3,4-dihydro-2h-isoquinoline-1-thiones and process for preparing them | |
CA989830A (en) | Process for preparing and recovering lactams | |
CA989831A (en) | Process for removing lactams | |
CA986524A (en) | Process for preparing benzoxazolones-(2) and benzothiazolones-(2) | |
CA983039A (en) | 3,4-dihydro-2h-isoquinoline-1-ones and process for preparing them | |
CA967958A (en) | Lumilysergol derivatives and process for preparing them | |
CA988526A (en) | Process for preparing triketoimidazolidines | |
AU461293B2 (en) | 17a-EIHYNYLESTRIOLS AND PROCESS FOR PREPARING SAME | |
CA967172A (en) | Process for preparing saligenol | |
AU452554B2 (en) | Process for preparing 5-hydroxy-1-tetralone | |
IL40022A (en) | 17alpha-ethynyl-16,17-dihydroxy-13beta-alkyl gona-4,9,11-triene-3-ones and process for preparing them | |
ZA722936B (en) | Improved process for preparing and recovering lactams | |
CA868408A (en) | Process for recovering m-alkylphenol | |
CA863371A (en) | Process for preparing phenylpropanals and phenylpropanols | |
CA869548A (en) | Benzenesulfonyl-ureas and process for preparing them | |
CA869563A (en) | Benzenesulfonyl-ureas and process for preparing them | |
CA872814A (en) | Benzenesulfonyl-ureas and process for preparing them | |
CA884275A (en) | Tetanus-vaccine and process for preparing it | |
IL38794A0 (en) | Thienobenzazepines and process for preparing them | |
CA866783A (en) | 22,25-epoxy-steroids and process for preparing them | |
AU459339B2 (en) | 1, 5-benzodiazepines and process for preparing them | |
CA872835A (en) | Process for preparing pseudonitrosite | |
CA861534A (en) | Process for preparing 5-nitroimidazoles | |
CA877968A (en) | Process for preparing substituted-6-trifluoromethyluracils | |
CA863312A (en) | Process for preparing m-amylphenyl-n-methylcarbamates |