http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113174499-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_edba331323cc8ac15a87318e17019827 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B61-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-44 |
| filingDate | 2021-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cbf5254b07de2d5e3268b1f5eacebcfc |
| publicationDate | 2021-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113174499-A |
| titleOfInvention | A kind of enrichment and recovery method of trace rhenium in very low concentration dilute solution |
| abstract | A method for enriching and recovering trace amounts of rhenium in a dilute solution with extremely low concentration, in particular to a method for enriching and recovering extremely low concentration trace amounts of rhenium from adsorption tail fluid obtained by in-situ leaching and mining of uranium from sandstone-type uranium mines. Iron salts FeCl 3 or Fe 2 (SO 4 ) 2 , or aluminum salts AlCl 3 or Al 2 (SO 4 ) 2 are dissolved in water to prepare iron- or aluminum-containing stock solutions. Before use, dilute the stock solution with water, then add a certain quality of water-soluble quaternary ammonium salt type cationic surfactant, dissolve and mix well, and prepare a spray agent for use. Spray the spray agent directly on the surface of the aqueous solution containing very low concentration of trace rhenium at pH 5 to 9. After standing for a period of time, the solid-liquid separation is performed, and the rhenium-containing filter residue is collected. The method for enriching and recovering extremely low concentration trace rhenium has high efficiency, low cost, simple operation and wide application range. After flocculation adsorption and solid-liquid separation, the concentration of rhenium in the filtrate can be reduced to 0.001-0.006mg/L, and the mass percentage of rhenium in the flocculation sedimentation sediment can be richer than that in the in-situ leaching adsorption tail liquid. Set thousands of times. |
| priorityDate | 2021-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.