BE858713A - Purification du epsilon-caprolactame - Google Patents
Purification du epsilon-caprolactameInfo
- Publication number
- BE858713A BE858713A BE180918A BE180918A BE858713A BE 858713 A BE858713 A BE 858713A BE 180918 A BE180918 A BE 180918A BE 180918 A BE180918 A BE 180918A BE 858713 A BE858713 A BE 858713A
- Authority
- BE
- Belgium
- Prior art keywords
- caprolactam
- epsilon
- purification
- Prior art date
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)
- Polyamides (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Pyrrole Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762641478 DE2641478A1 (de) | 1976-09-15 | 1976-09-15 | Reinigung von caprolactam |
Publications (1)
Publication Number | Publication Date |
---|---|
BE858713A true BE858713A (fr) | 1978-03-15 |
Family
ID=5987958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE180918A BE858713A (fr) | 1976-09-15 | 1977-09-15 | Purification du epsilon-caprolactame |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5337687A (de) |
BE (1) | BE858713A (de) |
BR (1) | BR7706142A (de) |
DD (1) | DD132128A5 (de) |
DE (1) | DE2641478A1 (de) |
ES (1) | ES462353A1 (de) |
FR (1) | FR2364905A1 (de) |
GB (1) | GB1529559A (de) |
NL (1) | NL7710151A (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2845075A1 (de) * | 1978-10-17 | 1980-05-08 | Basf Ag | Verfahren zur reinigung von rohcaprolactam |
TW215084B (en) * | 1992-04-17 | 1993-10-21 | Sumitomo Chemical Co | Process for producing a high purity caprolactam |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1397132A (fr) * | 1963-05-22 | 1965-04-30 | Halcon International Inc | Procédé chimique de purification de lactames |
FR1445047A (fr) * | 1964-08-18 | 1966-07-08 | Zimmer Verfahrenstechnik | Procédé de purification du caprolactame par oxydation |
-
1976
- 1976-09-15 DE DE19762641478 patent/DE2641478A1/de not_active Withdrawn
-
1977
- 1977-09-12 DD DD20097577A patent/DD132128A5/de unknown
- 1977-09-13 GB GB3810777A patent/GB1529559A/en not_active Expired
- 1977-09-14 JP JP11005077A patent/JPS5337687A/ja active Pending
- 1977-09-14 BR BR7706142A patent/BR7706142A/pt unknown
- 1977-09-14 ES ES462353A patent/ES462353A1/es not_active Expired
- 1977-09-15 BE BE180918A patent/BE858713A/xx not_active IP Right Cessation
- 1977-09-15 NL NL7710151A patent/NL7710151A/xx not_active Application Discontinuation
- 1977-09-15 FR FR7727926A patent/FR2364905A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
BR7706142A (pt) | 1978-07-04 |
DD132128A5 (de) | 1978-08-30 |
FR2364905A1 (fr) | 1978-04-14 |
NL7710151A (nl) | 1978-03-17 |
JPS5337687A (en) | 1978-04-06 |
FR2364905B1 (de) | 1981-11-27 |
ES462353A1 (es) | 1978-06-16 |
DE2641478A1 (de) | 1978-03-23 |
GB1529559A (en) | 1978-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI773835A (fi) | Foerfarande foer framstaellning av n-fosfonmetylglycinsalter | |
IT1085095B (it) | Produzione selettiva di para-dialchilbenzeni | |
BE837367A (fr) | Element de construction | |
PL201049A1 (pl) | Sposob wytwarzania nowych amidow pieciopeptydow | |
IT1082504B (it) | Procedimento di purificazione di salamoie | |
PL209254A1 (pl) | Sposob oczyszczania dwunitroanilin z nitrozoamin | |
FR2340298A1 (fr) | Preparation de meta-aryloxy-benzaldehydes | |
BE855965A (fr) | Preparation de gamma-pyrones | |
BE861036A (nl) | Behandeling van silica | |
JPS535165A (en) | Purification of dibenzylidenesorbitol | |
FR2291983A1 (fr) | Purification de l'urokinase | |
BE858718A (fr) | Purification du epsilon-caprolactame | |
BE858713A (fr) | Purification du epsilon-caprolactame | |
RO77284A (ro) | Procedeu pentru prepararea si purificarea rasinilor epoxidice | |
IT1080511B (it) | Procedimento per la purificazione di nistatina | |
JPS52148665A (en) | Purification of caramel | |
SE7709995L (sv) | Rening av klorgas | |
PL195311A1 (pl) | Sposob wytwarzania amidow podstawionych 2-ketopirolidyna | |
FR2308685A1 (fr) | Desucrage de la melasse | |
BE861034A (nl) | Behandeling van silica | |
BE855367A (fr) | Purification de l'epsilon-caprolactame | |
BE830371A (fr) | Purification de beta-naphtol | |
BE856414A (fr) | Preparation de trans-hexahydrodibenzopyranones | |
IT1086620B (it) | Procedimento per depurare alchilfenoli | |
IL53486A0 (en) | Purification of aminophenol |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: BAYER A.G. Effective date: 19840915 |