http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-309005-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b04f5b6a02051c94d6eaf190b751ed2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-50 |
| filingDate | 1927-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1929-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-309005-A |
| titleOfInvention | Process for the manufacture of oxygenated organic compounds |
| abstract | 309,005. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Dec. 31, 1927. Oxygenated organic compounds; acetophenone; i)iethyl- and dimethyl-phenyl carbinol; peroxides; formaldehyde.-Oxidation products are prepared from alkyl benzenes containing two or more carbon atoms in the side chain by treating them in the liquid phase and at an elevated temperature with oxygen or gases containing oxygen in the presence of an oxidation catalyst; suitable oxidation catalysts are the oxides, hydroxides, or organic salts of metals having a specific gravity above 5. Preferably, the oxidation catalysts are used in finely divided state, for instance in the colloidai state or precipitated on a support such as pumice, calcium carbonate, or silica gel. Severa) examples are given in which a mixture of acetophenone and methylphenyl carbinol is obtained from ethyi benzene by treatment with air or oxygen at a temperature of 120-190‹ C., the catalysts employed being (1; precipitated copper oxide, (2) precipitated ferric hydroxide, (3) a red iron oxide pigment, (4) iron oxide obtained in the process of Specification 263,376; (5) manganese hydroxide, copper oxide, and nickel hydroxide, each used separately a:fter precipitation in the presence of marble powder, (6) iron stearate, (7} iron benzoa.te, (8) Prussian blue, and (9) man. ganese resinate. In another example, in which precipitated zinc hydroxide is used as oxidation catalyst, an intermediate product resembling a peroxide is obtained, as well as acetophenone and phenylmethyl carbinol. The peroxide can be extracted by sodium hydroxide solution and the carbinol can be removed with sulphuric acid or oxidized to acetophenone. Two examples are given also of the oxidation of isopropyl benzene, the catalyst being copper oxide precipitated in the presence of marble powder. In one of the examples, al mixture of acetophenone and dimethylphenyl carbinol is obtained, the escaping gases containing traces of formaldehyde; in the other example, dimetl1ylphenyl carbinol only is obtained. Iron stearate is prepared by treating sodium steara,te solution with ferrous chloride, filtering, and drying the precipitate at 100‹ C. in the presence of air. Iron benzoate is prepared similarly from sodium benzoate and ferrous chloride. Manganese resinate. is prepared by extractinC rosin or colophony with sodium hydroxide solu. tion and treating the solution with manganese chloride. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0796835-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5990357-A |
| priorityDate | 1927-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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Total number of triples: 71.