GB1506437A - Recycling process for the preparation of cyclohexanone oxime - Google Patents
Recycling process for the preparation of cyclohexanone oximeInfo
- Publication number
- GB1506437A GB1506437A GB1666/75A GB1666675A GB1506437A GB 1506437 A GB1506437 A GB 1506437A GB 1666/75 A GB1666/75 A GB 1666/75A GB 1666675 A GB1666675 A GB 1666675A GB 1506437 A GB1506437 A GB 1506437A
- Authority
- GB
- United Kingdom
- Prior art keywords
- synthesis zone
- cyclohexanone oxime
- hydroxylammonium
- salt
- cyclohexanone
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Cyclohexanone oxime is obtained by circulating an acidic, buffered, aqueous reaction medium between a hydroxylammonium salt synthesis zone and a cyclohexanone oxime synthesis zone. After the circulated liquid is removed from the cyclohexanone oxime synthesis zone, but before it enters the hydroxylammonium salt synthesis zone, it is heated partially and/or regularly in contact with nitrous gases at a temperature of at least 120 DEG C under a pressure of more than 1 at abs. The reaction medium contains an ammonium salt as buffer salt. The hydroxylammonium ions are formed in the synthesis zone in question by catalytic reduction of nitrate ions, while the cyclohexanone oxime is formed in the synthesis zone in question by reacting the above hydroxylammonium ions with cyclohexanone.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7405630A NL7405630A (en) | 1974-04-26 | 1974-04-26 | CIRCUIT PROCESS FOR THE PREPARATION OF CYCLOHEXANONOXIME. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1506437A true GB1506437A (en) | 1978-04-05 |
Family
ID=19821235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1666/75A Expired GB1506437A (en) | 1974-04-26 | 1975-04-22 | Recycling process for the preparation of cyclohexanone oxime |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS50154224A (en) |
| AR (1) | AR202611A1 (en) |
| BE (1) | BE828393A (en) |
| BR (1) | BR7502549A (en) |
| CH (1) | CH609335A5 (en) |
| CS (1) | CS199266B2 (en) |
| DE (1) | DE2518259A1 (en) |
| ES (1) | ES436961A1 (en) |
| FR (1) | FR2268794B1 (en) |
| GB (1) | GB1506437A (en) |
| IT (1) | IT1035465B (en) |
| NL (1) | NL7405630A (en) |
| PL (1) | PL94769B1 (en) |
| RO (1) | RO73094A (en) |
| SU (1) | SU586838A3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60138025D1 (en) | 2000-06-05 | 2009-04-30 | Dsm Ip Assets Bv | PROCESS FOR THE PREPARATION OF CYCLOHEXANONEOXIM |
| AU2001264408A1 (en) * | 2000-06-05 | 2001-12-17 | Dsm N.V. | Process for the production of cyclohexanone oxime |
| ATE322461T1 (en) * | 2001-12-04 | 2006-04-15 | Dsm Ip Assets Bv | METHOD FOR TREATING A PHOSPHATE SALT AND AQUEOUS MEDIUM CONTAINING ORGANIC COMPOUNDS |
-
1974
- 1974-04-26 NL NL7405630A patent/NL7405630A/en not_active Application Discontinuation
-
1975
- 1975-04-22 GB GB1666/75A patent/GB1506437A/en not_active Expired
- 1975-04-24 JP JP50050167A patent/JPS50154224A/ja active Pending
- 1975-04-24 DE DE19752518259 patent/DE2518259A1/en active Pending
- 1975-04-24 CS CS752884A patent/CS199266B2/en unknown
- 1975-04-24 SU SU752126766A patent/SU586838A3/en active
- 1975-04-24 IT IT49299/75A patent/IT1035465B/en active
- 1975-04-24 FR FR7512794A patent/FR2268794B1/fr not_active Expired
- 1975-04-25 BE BE155775A patent/BE828393A/en unknown
- 1975-04-25 BR BR3233/75A patent/BR7502549A/en unknown
- 1975-04-25 ES ES436961A patent/ES436961A1/en not_active Expired
- 1975-04-25 PL PL1975179927A patent/PL94769B1/en unknown
- 1975-04-25 CH CH530775A patent/CH609335A5/en not_active IP Right Cessation
- 1975-04-25 RO RO7582088A patent/RO73094A/en unknown
- 1975-04-28 AR AR258525A patent/AR202611A1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| RO73094A (en) | 1982-02-26 |
| IT1035465B (en) | 1979-10-20 |
| BE828393A (en) | 1975-10-27 |
| AR202611A1 (en) | 1975-06-24 |
| DE2518259A1 (en) | 1975-11-06 |
| JPS50154224A (en) | 1975-12-12 |
| FR2268794A1 (en) | 1975-11-21 |
| NL7405630A (en) | 1975-10-28 |
| PL94769B1 (en) | 1977-08-31 |
| SU586838A3 (en) | 1977-12-30 |
| BR7502549A (en) | 1976-03-03 |
| CH609335A5 (en) | 1979-02-28 |
| CS199266B2 (en) | 1980-07-31 |
| ES436961A1 (en) | 1976-12-01 |
| FR2268794B1 (en) | 1979-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |