http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107216274-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D223-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D223-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-16 |
| filingDate | 2017-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107216274-B |
| titleOfInvention | System and method for continuously removing impurities from solvent benzene in caprolactam extraction process |
| abstract | The invention relates to a system and a method for continuously removing impurities from solvent benzene in a caprolactam extraction process, wherein the system comprises an impurity benzene decanter, the impurity benzene decanter is connected with a first static mixer through an impurity benzene delivery pump, the first static mixer is connected with a second static mixer, the second static mixer is connected with a high-efficiency coalescer, the high-efficiency coalescer is connected with a benzene rectifying tower through a crude benzene delivery pump, and the high-efficiency coalescer is also connected with a benzene stripping tower. Separating heavy phase insoluble in benzene in solvent benzene by decantation, and enabling benzene subjected to water washing and alkali washing after primary separation of free impurities in the benzene to enter a coalescer to remove a water phase; benzene separated by the coalescer enters a benzene rectifying tower for continuous rectification and impurity removal, heavy component impurities in the benzene are removed, the benzene subjected to rectification and condensation is removed in a crude caprolactam benzene extraction section, the 290nm extinction value of the rectified benzene is reduced to be below 0.1 from 0.25, and the purity is more than 99.98%. |
| priorityDate | 2017-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.