http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1237638-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b0a05b5340bdab2e8dbcbe15ec0a967 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-146 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-08 |
| filingDate | 2000-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_341ed46cc9b08bf47fd5e699d257b099 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65ef6a9abc8d0ad128481092c1b01371 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8bdbea5d57dce15e85628eb2b564333 |
| publicationDate | 2002-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1237638-A2 |
| titleOfInvention | Method and apparatus for purifying low grade acetonitrile and other constituents from hazardous waste |
| abstract | A method and apparatus for purifying acetonitrile from low grade acetonitriles. Low grade acetonitrile from DNA synthesis, HPLC and pharmaceutical drug manufacturing process wastes which comprise acetonitrile, a first set of impurities having a lower boiling temperature than acetronitrile and a second set of impurities having a boiling temperature greater than acetonitrile are processed to produce a purified acetronitrile by first introducing the low grade acetonitrile into a first distillation column and separating the acetronitrile and first set of impurities from the second set of inpurities, the acetonitrile and first set of impurities being drawn as a vapor from the first distillation column, the second set of impurities being produced as the first distillation column bottoms. The vapor is then condensed to produce a feed stream that is introduced into a second distillation column where the first set of impurities are separated from the acetonitrile, the purified acetronitrile being collected as the second distillation column bottoms. |
| priorityDate | 1999-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.