http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114100381-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e411e847865d5ba8fd889d3347812b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-125 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4dbe8bf50e2c0c6436752e0c8125355 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_199da9eb1b2d87ae85c6a7d80e7fda7a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb9265dea7c668d6701cccec280ceaa3 |
| publicationDate | 2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114100381-A |
| titleOfInvention | Preparation method of high-flux reverse osmosis membrane |
| abstract | A preparation method of a high-flux reverse osmosis membrane. The preparation method of the high-flux reverse osmosis membrane is low in preparation cost and capable of greatly improving the membrane flux under the condition that the desalting performance of the reverse osmosis membrane is not reduced. The method comprises the following steps: s1: immersing the basement membrane into an aqueous solution containing 4-methylpyridine and polyamine monomers, and filling the pores with the aqueous solution; s2: and after removing the redundant water phase, immersing the membrane into an oil phase solution containing polyacyl chloride, carrying out interfacial polymerization reaction on the surface of the base membrane to generate a polyamide layer, and drying to obtain the high-flux reverse osmosis membrane. Soaking in the aqueous phase solution for 5-180 s. Soaking in the oil phase solution for 3-120 s. The preparation method of the aqueous phase solution comprises the following steps: adding 4-methylpyridine and polyamine monomer into pure water, and stirring for 30min at 30 ℃ by using a constant-temperature water bath kettle to prepare the product. The invention has the excellent effects of not reducing desalination but greatly improving flux. |
| priorityDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.