| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2acb150ef0d8e7b69de0ce046c813a34 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0488
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-148
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D223-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D223-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-24 |
| filingDate |
2016-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_624e024cb52ff196e6f462af34b701a4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_518028d344a9f22500297e10dd8e9532
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d52338aec4155db0c4e8c1244f1ffe0 |
| publicationDate |
2018-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9902700-B2 |
| titleOfInvention |
Method and system for preparing caprolactam |
| abstract |
The present disclosure provides a method for preparing a caprolactam and the method includes steps of subjecting cyclohexanone oxime and sulfuric acid to a Beckmann rearrangement reaction to obtain a rearrangement mixture; neutralizing the rearrangement mixture and extracting the neutralized rearrangement mixture using an organic solvent sequentially; and subjecting the extracted organic solution to a hydrogenation reaction so as to simplify the process to produce a high quality caprolactam. |
| priorityDate |
2015-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |