| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8857d9285f4a393618523d052bf765df |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-149 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-33
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-149
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 |
| filingDate |
2001-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddda3b6ef340934ce792e98ee492869e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f491a7f3d996539bc6e1e2795070f6f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc2222c476ef2929c669b7b6cd77e329
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60bea74afd4eb6d75f9b6df0f9285b61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9e0474ff5734babcfa1596822c605db |
| publicationDate |
2002-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0218316-A2 |
| titleOfInvention |
Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol |
| abstract |
In the process for the conversion of maleic acid to gamma-butyrolactone. 1.4-butanediol and/or tetrahydrofuran, a feedstream comprising maleic acid is hydrogenated in a first hydrogenation zone to produce a reaction product comprising succinic acid and unreacted hydrogen which is then supplied to a second hydrogenation zone, where succinic acid is converted to 1,4-butanediol, the temper atures of the feedstream comprising maleic acid and the first hydrogenation zone are controlled such that the temperature of mal eic acid in the feedstream and the first hydrogenation zone does not exceed about 130 °C, thereby minimizing the corrosive effects of the maleic acid and prolonging reactor life and improving overall process economics. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9162961-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9926578-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012316368-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011098598-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2360137-A1 |
| priorityDate |
2000-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |