ES436961A1 - Recycling process for the preparation of cyclohexanone oxime - Google Patents
Recycling process for the preparation of cyclohexanone oximeInfo
- Publication number
- ES436961A1 ES436961A1 ES436961A ES436961A ES436961A1 ES 436961 A1 ES436961 A1 ES 436961A1 ES 436961 A ES436961 A ES 436961A ES 436961 A ES436961 A ES 436961A ES 436961 A1 ES436961 A1 ES 436961A1
- Authority
- ES
- Spain
- 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 |
|---|---|
| ES436961A1 true ES436961A1 (en) | 1976-12-01 |
Family
ID=19821235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES436961A Expired ES436961A1 (en) | 1974-04-26 | 1975-04-25 | 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 |
|---|---|---|---|---|
| JP4856839B2 (en) * | 2000-06-05 | 2012-01-18 | ディーエスエム アイピー アセッツ ビー．ブイ． | Method for producing cyclohexanone oxime |
| EP1303480B1 (en) | 2000-06-05 | 2009-03-18 | DSM IP Assets B.V. | Process for the production of cyclohexanone oxime |
| TWI254028B (en) * | 2001-12-04 | 2006-05-01 | Dsm Ip Assets Bv | Process for treating an aqueous medium containing phosphate salt and 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 DE DE19752518259 patent/DE2518259A1/en active Pending
- 1975-04-24 IT IT49299/75A patent/IT1035465B/en active
- 1975-04-24 CS CS752884A patent/CS199266B2/en unknown
- 1975-04-24 FR FR7512794A patent/FR2268794B1/fr not_active Expired
- 1975-04-24 SU SU752126766A patent/SU586838A3/en active
- 1975-04-24 JP JP50050167A patent/JPS50154224A/ja active Pending
- 1975-04-25 ES ES436961A patent/ES436961A1/en not_active Expired
- 1975-04-25 CH CH530775A patent/CH609335A5/en not_active IP Right Cessation
- 1975-04-25 RO RO7582088A patent/RO73094A/en unknown
- 1975-04-25 BR BR3233/75A patent/BR7502549A/en unknown
- 1975-04-25 BE BE155775A patent/BE828393A/en unknown
- 1975-04-25 PL PL1975179927A patent/PL94769B1/en unknown
- 1975-04-28 AR AR258525A patent/AR202611A1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| RO73094A (en) | 1982-02-26 |
| FR2268794B1 (en) | 1979-10-05 |
| AR202611A1 (en) | 1975-06-24 |
| BE828393A (en) | 1975-10-27 |
| DE2518259A1 (en) | 1975-11-06 |
| FR2268794A1 (en) | 1975-11-21 |
| CH609335A5 (en) | 1979-02-28 |
| GB1506437A (en) | 1978-04-05 |
| PL94769B1 (en) | 1977-08-31 |
| IT1035465B (en) | 1979-10-20 |
| CS199266B2 (en) | 1980-07-31 |
| JPS50154224A (en) | 1975-12-12 |
| SU586838A3 (en) | 1977-12-30 |
| BR7502549A (en) | 1976-03-03 |
| NL7405630A (en) | 1975-10-28 |
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