| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-573 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-573
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 |
| filingDate |
1986-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7351dbc90dd9cafc098b07f939b7f0c8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4c75c837d1f744a33554dbe2d138a47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b632525ae9ed7abe71798be6bf7cd078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50bf92c1d89bce720c2bebc5e5b2cb5e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6981321dca39c932c294a3e5ebf394f |
| publicationDate |
1986-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0191395-A2 |
| titleOfInvention |
Process for the purification of crude maleic anhydride |
| abstract |
Process for the recovery of highly pure, color-stable maleic anhydride by fractional distillation of crude maleic anhydride, whereby the vaporous maleic anhydride separated from low boilers and high boilers is partially condensed in such a way that 0.5 to 15% by weight of the vaporous maleic anhydride is separated off from the vapor phase as a liquid precondensate and the remaining vaporous high-purity maleic anhydride is then totally condensed. |
| priorityDate |
1985-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |