http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1258485-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-08 |
| filingDate | 2002-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2005-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32856583b06e308542ccc85a4fcf2ef7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0a5125aed09d8445d284181347c1d70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce4a66a9f5b8cc69f12c84708a0f07cb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f938ee7ffc857f9fe31acfa046d56d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76f463f0f2504f15c190199d04db1811 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84081a13ad7a1fd25d2f0097b3c6918f |
| publicationDate | 2005-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1258485-B1 |
| titleOfInvention | Method for recycling of mother liquor from a high-purity triethylenediamine production process |
| abstract | Purification of triethylene diamine (TEDA) comprises crystallization and extraction of the resulting mother liquor with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process. A process for the purification of triethylene diamine (TEDA) by evaporation and feeding the TEDA vapor to a liquid solvent followed by crystallization is characterized in that following crystallization of the TEDA the resulting mother liquor is extracted with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process. |
| priorityDate | 2001-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 115.