| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1f8713f6ace083308920724981592661 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G51-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G51-02 |
| filingDate |
2008-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eeabb45e6276122c595d08d3de535518
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2dba42e8a517f50272c001b0d3502c6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c43dfc067cb231059b9d348f73431023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c50e270d666ea0581044f7d836309387
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb2ed23aa8571a9811cb768748f90848
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ea1e05706a1158444e0418f54fde48d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e15cdb5c5a1296a9cd61481282d0ac3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26f3ff5d9f554b6cbde70aba244ea179 |
| publicationDate |
2009-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2134880-A1 |
| titleOfInvention |
Cobalt recovery from cobalt catalysed hydroformylation reactions |
| abstract |
In a hydroformylation reaction, the circulation and recovery of cobalt carbonyl in a cobalt catalyst cycle using carbonylate as an intermediate and acidification thereof, is improved by supplying an aqueous sulfuric acid solution containing less than 16 %wt of sulfuric acid to the carbonylate to control sulfuric acid concentration in the carbonylate/acid mixture, before accounting for any acid consuming reaction, to a value of from 2% to 10% by weight. Single step and multistage liquid/liquid extraction techniques as well as vapour/liquid extraction techniques followed by the absorption of cobalt from the vapour in an organic liquid both benefit from this improvement. |
| priorityDate |
2007-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |