http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10253094-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-16 |
| filingDate | 2002-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_afa07a647d3ed087705fbdb7a13cc97c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a81a5e3f9c07705b4b280b60ccb1bfb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf128408c7ec2c0fbf80c8003b655beb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_872007423bd16471c4389b4cb93762f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c7908a604a64c739bceb7e5e926ff60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92360cf942b3ab9113cfae4e6a31b253 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f9466ee75bc77701163fb62085e4905 |
| publicationDate | 2004-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-10253094-A1 |
| titleOfInvention | Process for the purification of caprolactam |
| abstract | Process for the purification of crude caprolactam obtained by 1) a mixture (I) containing 6-aminocapronitrile and water to a mixture (II) containing caprolactam, ammonia, water, high boilers and low boilers, reacted in the presence of a catalyst, then 2) ammonia removed from mixture (II) to obtain a mixture (III) containing caprolactam, water, high boilers and low boilers, then 3) completely or partially removed from mixture (III) water to give a crude caprolactam (IV) containing caprolactam, high boilers and low boilers, characterized in that one a) the crude caprolactam and an inorganic acid which has a boiling point above the boiling point of caprolactam under the distillation conditions according to the following steps b) to h) are fed to a first distillation device K1, b) the crude caprolactam and the inorganic acid are distilled in the first distillation device K1, a first partial stream in the bottom area and a second partial stream in the top area being removed from the distillation device K1, c) feeding the second partial stream from step b) to a second distillation device K2, d) the second partial stream from step b) is distilled in the second distillation device K2, a first partial stream in the bottom area and a second partial stream in the top area being taken from the distillation device K2, e) the first partial stream from step d) a ... |
| priorityDate | 2002-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 106.