http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-825602-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_56d89ecad9f8611b616fba72b15d713b |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-868 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-403 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C35-08 |
| filingDate | 1956-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1959-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-825602-A |
| titleOfInvention | Process for the dehydrogenation of alcohols |
| abstract | A catalyst for the dehydrogenation of saturated aliphatic or cycloaliphatic primary and secondary alcohols containing 2-6 carbon atoms consists of a carrier, copper and at least 0.1% by weight of an alkali metal oxide (referred to the total quantity of copper and alkali metal calculated as cuprous oxide and alkali metal oxide), the copper content having been obtained by heating copper tetramine complexes followed by subsequent heating with hydrogen and consisting of reduced copper with small amounts of unreduced copper oxide. The catalyst may additionally contain 0.5-3% by weight of chromium and/or chromium oxide, the alkali metal oxide being present in an amount from double to six times the molar quantity of chromium oxide or chromium calculated as chromium oxide or the chromium content may be partially or wholly replaced by bivalent zinc calculated as zinc oxide. Suitable copper tetramine complexes are obtained by reacting copper carbonate, acetate, formate, nitrate or hydroxide with ammonia. Suitable carriers are, for example, pumice and diatomaceous earth.ALSO:Aldehydes and ketones are prepared by dehydrogenating saturated aliphatic or cycloaliphatic primary or secondary alcohols containing 2-6 carbon atoms at temperatures of from 250 DEG to 380 DEG C. in the presence of a catalyst applied on to a carrier, comprising reduced copper containing small amounts of unreduced copper oxide and alkali metal oxide, the catalyst having been obtained by heating a copper tetramine complex followed by subsequent heating with hydrogen and containing at least 0.1% by weight of alkali metal oxide referred to the total quantity of copper and alkali metal content calculated as cuprous oxide and alkali metal oxide. If desired, small amounts of chromium and/or zinc may also be present in the catalyst. Examples are given of the dehydrogenation of (a) ethanol to give acetaldehyde, (b) isopropanol to give acetone, (c) secondary butyl alcohol to give methyl ethyl ketone, and (d) n-butyl alcohol to give n-butyraldehyde. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4891446-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021037990-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3217041-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022184614-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4935538-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3209034-A |
| priorityDate | 1955-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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