http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112191108-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-444 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2020-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112191108-B |
| titleOfInvention | Preparation method of polyvinylidene fluoride hollow fiber ultrafiltration membrane capable of intercepting heavy metal ions |
| abstract | The invention relates to a preparation method of a polyvinylidene fluoride hollow fiber ultrafiltration membrane capable of intercepting heavy metal ions. Preparing a casting film raw material and uniformly blending; (2) melting and mixing at high temperature; (3) extruding; (4) quickly curing and forming; (5) and extracting to remove the diluent. The method utilizes the characteristics of high-temperature high-shear dispersion and extremely-fast cooling solidification molding of a thermally-induced phase separation membrane preparation method, disperses and fixes the nano attapulgite or the modified attapulgite in the form of aggregates of 10-50 mu m in an ultrafiltration membrane matrix at one time, and has excellent interception capability on heavy metal ions. The invention has simple production process, and the finished product has the performance of high flux and high efficiency in intercepting heavy metal ions, and has good membrane strength, difficult damage and long service life. |
| priorityDate | 2020-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.