| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_50907fc1b392e2bf592f74fb8123032d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-141
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-58 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-141 |
| filingDate |
1996-10-15^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-03-24^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5561702acb9e24d8830d41c2425ebfd7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c4fb26f5bbca57243cd0cf1826c7142b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c039b06cc6f22721106d626b7958eac1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be2da0045c7dc67ecb5173db70d55cd5 |
| publicationDate |
1998-03-24^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5731478-A |
| titleOfInvention |
Process for preparing alkanediols |
| abstract |
An alkanediol such as 1,3-propanediol is prepared in a process which involves reacting an alkylene oxide with carbon monoxide and hydrogen in an essentially non-water-miscible solvent in the presence of a non-phosphine-ligated cobalt or rhodium catalyst and a manganese porphyrine promoter to produce an intermediate product mixture containing a hydroxyalkanal in an amount less than 15 wt %; extracting the hydroxyalkanal from the intermediate product mixture into an aqueous liquid at a temperature less than about 100 DEG C. and separating the aqueous phase containing hydroxyalkanal from the organic phase containing cobalt catalyst; hydrogenating the hydroxyalkanal in the aqueous phase to an alkanediol; and recovering the alkanediol. The process enables the production of an alkanediol such as 1,3-propanediol in high yields and selectivity without the use of a phosphine ligand with the cobalt or rhodium catalyst. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6600065-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7385090-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007179322-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6617478-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6617477-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6541414-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004059165-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7488372-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006189833-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6323374-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6465680-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6376724-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6376720-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6348632-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6348611-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6521801-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6479716-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7115540-B2 |
| priorityDate |
1996-10-15^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |