| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-822
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2540-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-321
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-4053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-4046
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-786
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2404
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-4061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-50 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 |
| filingDate |
1996-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef52b6955efdd2db27dbc43f3c1feb94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d530e5676961b20c6bb249d3b2135fb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7c62c2b9e6abf33393082273bb24705 |
| publicationDate |
1998-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-19632600-A1 |
| titleOfInvention |
Process for the preparation of aldehydes |
| abstract |
Aldehydes are prepared by hydroformylation of olefinically unsaturated compounds with hydrogen and carbon monoxide in homogeneous phase in the presence of a catalyst system comprising rhodium complex compounds and aromatic phosphines in molar excess. The catalyst system is separated off from the reaction mixture by pressure filtration on a semipermeable membrane of an aromatic polyamide. The hydroformylation is carried out at pH 2.5-4.2 using a molar ratio of phosphine:rhodium of at least 60 and a rhodium concentration of at least 10 ppm weight. The aromatic phosphines are alkylammonium and/or arylammonium salts of sulphonated or carboxylated triarylphosphines of formula (I). In (I): X = sulphonate or carboxylate; a, b and c each = 0 or 1, at least one being 1; n = 1, 2 or 3; and R1 and R2 each = 8-13C alkyl, 6-10C aryl and/or 6-10C cycloalkyl, R1 can also be hydrogen, with R1 and R2 having a total of at least 30C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9694341-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7317130-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015058919-A1 |
| priorityDate |
1996-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |