| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b0f7335535c7ee5fe6528feb91d6fae3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-82 |
| filingDate |
1987-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02fa9e7d3fcd29ee4a23c44362162ad5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_825d23341e2bdc5859a9717a0668e300
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84fbcbe15a420f6a57008340c8302ee9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38e9b24e291616c9c926ee4aeb9ff958
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6465031fff6e228eba8d74b76091242f |
| publicationDate |
1991-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1292721-C |
| titleOfInvention |
Process for working-up aqueous amine solutions |
| abstract |
A PROCESS FOR WORKING-UP AQUEOUS AMINE SOLUTIONS ABSTRACT OF THE DISCLOSURE An amine is separated from an aqueous solution of amine and volatile organic compounds by distillation in a column. The vapors generated during distillation are condensed. The liquid remaining in the column is then passed into a separating device in which the volatile organic compounds are removed in vapor form. The liquid remaining in the separating device is then fed to the head of the distillation column. Water is removed from the column in a sidestream and diamine is the residue. This process is particularly effective in recovering aromatic diamines from solutions which accumulate during hydrogenation of dinitro aromatic compounds. |
| priorityDate |
1986-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |