| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_63a838fb7b3e23f9d9d43c7f75188187 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-09 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-143
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-146 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-09 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-34 |
| filingDate |
2003-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db22caabc34a9af870ecc124b4b561fd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ccf1f0665e5ccb729e4e9eb365f73169
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21031b0df05e6a52088da03f77e052d3 |
| publicationDate |
2005-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20050029217-A |
| titleOfInvention |
Recovery of adiponitrile from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine |
| abstract |
(1) A mixture of adiponitrile (ADN), aminocapronitrile and hexamethylenediamine with bishexamethylenetriamine (BHMT) and 2-cyanocyclopentylideneimine (CPI) at least 70% ADN Distilling in a distillation column under head pressure to be obtained as this distillate; And (2) a second distillation column under head pressure such that the distillate of step (1) forms a distillate comprising a minimum temperature azeotrope between ADN and BHMT and an ADN bottom product substantially free of both BHMT and CPI. A method for recovering substantially pure adiponitrile from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine, comprising distilling at. |
| priorityDate |
2002-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |