| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dcb88e6c103e4974b104452c51fbb4a5 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D315-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-868 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D315-00 |
| filingDate |
1985-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a90b8132ec70f8104ef7a0278e81ee1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c690f48f7cacfcbe299c693308ec52f7 |
| publicationDate |
1986-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-3539151-A1 |
| titleOfInvention |
METHOD AND PRODUCTION OF EPSILON-BUTYROLACTONE BY CATALYTIC HYDRATION OF MALEIC ACID, FUMARIC ACID AND / OR AMERIC ACID ESTER |
| abstract |
For the preparation of gamma -butyrolactone, esters of maleic acid, fumaric acid or succinic acid or mixtures thereof are hydrogenated in the presence of copper chromite catalysts, preferably barium-containing copper chromite catalysts, in the trickle phase at a hydrogen pressure of 1 to 12 bar and temperatures of 180 to 260 DEG C. |
| priorityDate |
1984-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |