http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101528811-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-04 |
| filingDate | 2007-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21c08de4464c231f0754311f31555f4d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3249149c86ccf3bffcce1ba655b7dfd7 |
| publicationDate | 2009-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101528811-A |
| titleOfInvention | Application of coil tube evaporators for the production of polyamides |
| abstract | The invention relates to the use of coil tube evaporators for concentrating aqueous extract solutions from the extraction of polyamides based on polyamide (6). A method for the production of polyamides based on polyamide (6) comprises the steps (b) one-phase or two-phase reaction of aqueous extract solutions from the extraction of polyamides based on polyamide (6), which are possibly enriched with caprolactam, aminocapronitrile, aminocaproic acid, or mixtures thereof, in a pre-reactor at pressures in the range of 5 to 40 bar and temperatures in the range of 150 to 300 DEG C, wherein in the two-phase reaction, the evolved gaseous phase can be separated from the liquid phase, c) discharge of the reaction mixture obtained from step b) by means of a coil tube evaporator at a temperature in the range of 220 to 300 DEG C with a reduction of pressure to approximately atmospheric pressure and separation of a gaseous phase, producing a liquid phase, d) further reaction of the liquid phase obtained from step c) at temperatures in the range of 240 to 300 DEG C and pressures in the range of atmospheric pressure to 2 bar, with a separation of a gaseous phase. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111100287-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111100287-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110938205-A |
| priorityDate | 2006-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.