http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111333099-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y40-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y40-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G3-02 |
| filingDate | 2020-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111333099-B |
| titleOfInvention | Method for preparing nano copper hydroxide from acidic copper chloride etching waste liquid |
| abstract | The invention discloses a method for preparing nano copper hydroxide from acidic copper chloride etching waste liquid, which comprises the steps of adding an auxiliary agent and water into the acidic copper chloride etching waste liquid with a proper amount, uniformly mixing, adding a precipitator, adjusting the pH value of the solution, stirring, reacting, aging, filtering, washing a filter cake with water until no chloride ion exists, and drying the filter cake to constant weight to obtain a product of nano copper hydroxide; adjusting the pH of the filtrate to be neutral by concentrated hydrochloric acid, evaporating, crystallizing, and drying to constant weight to obtain a byproduct sodium chloride or potassium chloride. The method takes the acidic copper chloride etching waste liquid as a raw material, adopts a simple process, and can prepare the nano copper hydroxide product with the purity of more than 99.0 percent, the chloride content (Cl) of less than or equal to 400ppm, fibrous appearance, average diameter of 40-100 nm and average length of 1-2.5 mu m in one step. The recovery rate of copper in the method can reach more than 99.9 percent. |
| priorityDate | 2020-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 72.