http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109650437-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G15-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G15-00 |
| filingDate | 2019-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109650437-B |
| titleOfInvention | Method for preparing thallium nitrate and thallium sulfate by thallium-containing acidic wastewater |
| abstract | The invention discloses a method for preparing thallium nitrate and thallium sulfate by thallium-containing acidic wastewater. This method comprises the steps of: 1) adding bromine water into the thallium-containing acidic wastewater in the smelting plant, and carrying out mixed reaction until the wastewater is orange yellow to obtain the thallium-containing trivalent complex anionThe wastewater of (4); 2) mixing the wastewater treated in the step 1) with anion exchange resin, performing adsorption treatment, filtering and collecting the resin; 3) mixing the resin obtained in the step 2) with a reducing agent solution, carrying out elution treatment, and filtering to obtain the product rich in Tl + The solution of (1); 4) to be rich in Tl + Adding sulfide into the solution to react, and filtering to obtain thallium sulfide; 5) and reacting thallium sulfide with dilute nitric acid or dilute sulfuric acid to obtain thallium nitrate or thallium sulfate. The method adopts anion exchange resin to directly adsorb and extract thallium at high acidity, does not need alkali to neutralize acidity, has simple process and low cost, and has the advantage of thallium resource recycling. |
| priorityDate | 2019-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.