http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101868449-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-08 |
| filingDate | 2009-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101868449-B |
| titleOfInvention | Process for preparing tetrahydrofuran |
| abstract | The present invention provides a process for preparing tetrahydrofuran by absorption of C4 dicarboxylic acids and/or derivatives thereof from a crude-product mixture into an organic solvent or water as absorbent, separation of the absorbent, catalytic hydrogenation of the resulting C4 dicarboxylic acids and/or derivatives thereof, and distillation of the crude, water-containing tetrahydrofuran in at least one distillation column, wherein THF-containing waste streams from the distillation are subjected to catalytic hydrogenation with complete or partial recycling into the process. |
| priorityDate | 2008-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 83.