http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5429721-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-055 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-055 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-44 |
| filingDate | 1994-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1995-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd4293f784e764e2930be5a7f6227aae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a670a5832fa49f6763e02f3e42068c09 |
| publicationDate | 1995-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5429721-A |
| titleOfInvention | Process for preparing diacetoxybutene |
| abstract | A process for preparing diacetoxybutene, including: n reacting butadiene, acetic acid and oxygen in the presence of a palladium-based catalyst; n feeding continuously the resulting reaction product into a first distillation tower; n feeding continuously a withdrawn bottoms withdrawn from the first distillation tower into a second distillation tower; n withdrawing bottoms containing high boiling point materials from the bottom of the second distillation tower, so that the content of the high boiling point materials in the bottoms of the second distillation tower is not more than 20 wt %; n feeding continuously the withdrawn bottoms into a thin-film evaporator whose internal pressure is kept lower than the bottom pressure of the second distillation tower to carry out evaporation treatment; and n recycling the evaporated materials mainly containing diacetoxybutene into the second distillation tower. |
| priorityDate | 1993-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.