http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110745902-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-44 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-42 |
| filingDate | 2019-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110745902-B |
| titleOfInvention | Method for extracting heavy metals of chromium (VI) and cadmium (II) in water body step by step |
| abstract | The invention discloses a method for extracting heavy metals of chromium (VI) and cadmium (II) in a water body step by step, which comprises the steps of respectively preparing polymer gel liquid films for selective extraction of chromium (VI) and cadmium (II); respectively constructing an electric film extraction system of heavy metal chromium (VI) and heavy metal cadmium (II), and respectively separating and extracting the chromium (VI) and the cadmium (II). The invention introduces the mixed feed liquid containing chromium (VI) and cadmium (II) into a chromium (VI) electro-membrane extraction system to separate and extract chromium (VI); and introducing the residual liquid into a cadmium (II) electro-membrane extraction system for separating and extracting cadmium (II). The method and the process for extracting, separating and enriching chromium (VI) and cadmium (II) in the water phase in a stepwise manner with high efficiency and high selectivity have the advantages of continuous operation, simple and convenient process, flexible occupied area, small chemical reagent consumption, energy conservation and environmental protection. Can simultaneously realize the standard discharge of heavy metal wastewater and the recycling of low-concentration chromium and cadmium metals. |
| priorityDate | 2019-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.