http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108295667-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A20-131 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-00 |
| filingDate | 2017-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108295667-B |
| titleOfInvention | Forward osmosis composite membrane based on large-aperture base membrane and preparation method thereof |
| abstract | The invention discloses a forward osmosis composite membrane based on a large-aperture base membrane and a preparation method thereof, wherein the forward osmosis composite membrane consists of the large-aperture base membrane and an ultrathin desalting layer; the polyamide ultra-thin desalting layer is prepared by adopting a microporous membrane which is super-hydrophilic, has the aperture of 0.1-1 micron and the porosity of more than 85 percent as a large-aperture base membrane, carrying out heat treatment on the large-aperture base membrane, and then carrying out interfacial polymerization on a polyamine active monomer aqueous phase solution and an acyl chloride active monomer oil phase solution on the surface of the base membrane. The invention effectively solves the adverse effect on the performance of the forward osmosis composite membrane caused by adopting a small-aperture ultrafiltration membrane structure as a base membrane at present, eliminates the problem of infirm combination of a polyamide ultrathin desalting layer and the base membrane, greatly improves the concentration polarization phenomenon in the membrane, reduces the mass transfer distance and resistance, improves the water flux, the salt rejection rate and the anti-pollution characteristic of the forward osmosis composite membrane, and has good application prospect. |
| priorityDate | 2017-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.