http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114432896-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cb63013c3622169c72ad0a08072078b2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e09996f2311bc8494d66c73368858651 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-125 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 |
| filingDate | 2020-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a58e38b2d0871e284ffe1aa5d983ded http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d35259705132388f95fcb9ae8459c746 |
| publicationDate | 2022-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114432896-A |
| titleOfInvention | A kind of preparation method of nanofiltration membrane |
| abstract | The invention discloses a preparation method of a nanofiltration membrane. The method includes: (1) providing a film making device, which includes a container, a base film placed almost horizontally, and liquid injection ports respectively located above the base film and below the base film; (2) preparing a film casting liquid: the film casting liquid includes Two kinds of reaction monomer solutions; (3) at the film-forming temperature, add the reaction monomer solutions from the liquid injection ports above and below the base film into the film-forming device, respectively, so that the two kinds of reaction monomer solutions are separated from the upper and lower parts of the base film. The two sides enter the membrane hole, and the interfacial polymerization reaction is carried out here; (4) After reacting for a certain period of time at the film-forming temperature, the membrane is taken out from the membrane-making device to obtain a nanofiltration membrane. The method of the invention can effectively adjust the mass transfer and reaction behavior of the reaction monomer at the interface, and solve the problem of porosity and permeability in the traditional membrane-making process, thereby helping to improve the performance of the nanofiltration membrane. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114797504-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115569526-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115569526-A |
| priorityDate | 2020-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.