http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114797493-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A20-131 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-445 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-10 |
| filingDate | 2022-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114797493-B |
| titleOfInvention | Temperature-resistant composite separation membrane and preparation method thereof |
| abstract | The invention provides a temperature-resistant composite separation membrane and a preparation method thereof, and relates to the technical field of membrane separation. The temperature-resistant composite separation membrane is prepared through the following steps: preparing a supporting layer casting solution and a sacrificial layer casting solution, the viscosity of the supporting layer casting solution is greater than that of the sacrificial layer casting solution; Simultaneously cast a film with the sacrificial layer casting solution to obtain an initial film, and the support layer is located at the lower part of the sacrificial layer, and then put the glass plate into the first solvent for phase separation, and separate the initial film from the substrate after phase separation; the separated The initial film is soaked in the second solvent until the sacrificial layer is completely dissolved, and the supporting layer is taken out, and the side of the supporting layer close to the sacrificial layer is taken as the top; a polyamide active layer is grafted on the top of the supporting layer. The separation membrane prepared by the method can withstand a temperature of 90°C, and under the condition of keeping the salt rejection rate basically unchanged, the membrane flux can reach three times that of the normal temperature condition, and can be applied to the treatment of high-temperature liquids. |
| priorityDate | 2022-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.