http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-559682-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b4c5d2ce48e622172ebe9889b315dc8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-74 |
| filingDate | 1942-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1944-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-559682-A |
| titleOfInvention | Production of unsaturated ketones |
| abstract | 559,682. Unsaturated ketones. SHELL DEVELOPMENT CO. April 28, 1942, No. 5714. Convention date, June 23, 1941. [Class 2 (iii)] Unsaturated ketones are produced by contacting the vapour of a lower ketone with an alkali or alkaline earth metal salt of a weak amphoteric inorganic acid at above 250‹C. Suitable catalysts are sodium, calcium, barium, magnesium and beryllium aluminates, sodium, calcium and caesium borates, potassium and calcium zincates, magnesium and lithium plumbates, potassium and strontium stannates, sodium and magnesium antimonates, calcium aurate, sodium, rubidium and calcium arsenates, and potassium titanate. The preparation of catalysts consisting of calcium aluminate, calcium metaborate and of sodium aluminate on pumice respectively is described. Tabular particulars are given for the production of mesityl oxide and isophorone from acetone under various conditions. To obtain mainly isophorone, the mesityl oxide produced may be recycled, thus reducing the further production of this substance. Instead of acetone other ketones may be employed, especially methyl ketones, but including also cyclopentanone, cyclohexanone, and acetophenone. Specification 552,706 is referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0095783-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0095783-A3 |
| priorityDate | 1941-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.