| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f663bbd146931e8b8e2d3c1381efef8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2001-422
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-163 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-26 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-42 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-04 |
| filingDate |
1990-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cab546e1427e6f10ab823dc62f135ce2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3660aeedb27fdd1de26ce5859b9a373
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c14aef4736ab020226a41944cbfba927 |
| publicationDate |
1992-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DD-297950-A5 |
| titleOfInvention |
METHOD FOR REMOVING NITRATE AND / OR ORGANIC POLLUTION FROM WASTEWATERS |
| abstract |
Disclosed is a continuous process for the removal of nitrate and / or organic contaminants from effluents comprising a liquid phase extractive ion exchange with a long chain amine dissolved and salified in an organic solvent and the back extraction of the loaded organic phase with a base. after which the treated wastewater can be returned for reuse. The process is particularly suitable for the purification of effluents from caprolactam production plants and / or ammonium sulphate crystallization. Nitrate, organic impurities; Ion exchange, extractive; liquid phase; Salt; long-chain amine; Rueckextraktion; Base} |
| priorityDate |
1989-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |