http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112316753-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68 |
| filingDate | 2020-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112316753-B |
| titleOfInvention | Preparation method of high-flux loose hollow fiber nanofiltration membrane |
| abstract | A preparation method of a high-flux loose hollow fiber nanofiltration membrane is characterized by comprising the following steps: dissolving a metal silver salt in water to prepare a metal silver salt solution, then adding ethylenediamine into the metal silver salt solution, and stirring to obtain a uniform water phase solution; soaking the hollow fiber ultrafiltration membrane into the prepared water phase solution, taking out after soaking, and removing residual solution on the surface of the hollow fiber ultrafiltration membrane; soaking the hollow fiber ultrafiltration membrane obtained in the step two into the prepared oil phase solution, and carrying out interfacial polymerization reaction on the surface of the hollow fiber membrane; and fourthly, taking the hollow fiber ultrafiltration membrane obtained in the third step out of the oil phase, drying, soaking in a salt solution, taking out, and then washing with pure water to obtain the hollow fiber nanofiltration membrane. The silver chloride nano particles can be uniformly distributed in the ultrathin separating layer in an in-situ production mode, and cavities formed after the nano particles are dissolved can greatly improve the flux while ensuring the interception performance of the nanofiltration membrane. |
| priorityDate | 2020-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.