http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113318598-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A20-131 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0016 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0081 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0095 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-68 |
| classificationIPCInventive | 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/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2021-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113318598-B |
| titleOfInvention | A method for enhancing the permselectivity of reverse osmosis membrane by adjusting the pore size of base membrane |
| abstract | The invention discloses a method for enhancing the selective permeability of reverse osmosis membrane by adjusting the pore size of base membrane. After the non-woven fabric is placed on the non-woven fabric, it undergoes phase inversion in the coagulation bath. Due to the addition of the highly hydrophilic end of sodium dodecyl sulfate, the exchange rate between the solvent and the non-solvent is accelerated, so that the rate of phase inversion is delayed by phase separation. It is transformed into instantaneous phase separation, resulting in the formation of base membranes with different pore sizes, on which a layer of polyamide ultra-polyamide is synthesized by interfacial polymerization of amine monomers dissolved in water phase and polybasic acid chloride monomers dissolved in oil phase. thin layer to form a thin-layer composite reverse osmosis membrane. By modifying the base membrane, the invention increases the pore size of the base membrane to a certain extent, improves the compactness of the separation layer, improves the water flux and salt retention rate of the final membrane product, improves the selective permeability of the membrane, and achieves Good technical effect. |
| priorityDate | 2021-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.