http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100311914-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1bc8d5b80410c3a0594da023cfabcbe0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-02 |
| filingDate | 1994-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb6a666fb710143ad52064cd4c4636d2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_460c9d960b7a49a4b5c7d5efb4d0f53a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3380bb55c72f12004b861efd72959c5 |
| publicationDate | 2002-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100311914-B1 |
| titleOfInvention | Purification method of low purity caprolactam |
| abstract | The present invention relates to a method for purifying low purity caprolactam.n n n An object of the present invention is to provide a method capable of more efficiently removing organic impurities contained in low-purity caprolactam, and effectively removing oil and dye components.n n n In the present invention, in the purification of low-purity lactam obtained by depolymerization of polyamide, after making low-purity lactam into 40-80% aqueous solution, peroxide is added thereto, ferrous ammonium sulfate is added to the aqueous solution, and then activated carbon tower It is characterized by distilling and concentrating the liquid through. |
| priorityDate | 1994-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.