http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115074784-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_089d40759d5e23b2760341e8f5fd5ce8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25C1-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25C7-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25C7-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25C1-12 |
| filingDate | 2021-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f813026618fcf10d86e72fd48afa3e21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3499fa2653c1335882e057f8b25852e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a710787f736d5f108bfc967f1d49c42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_855b5e0d1be1d4497c1d33299fd69314 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1638bffc45ba4ffa4f4ac2955ec98db |
| publicationDate | 2022-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-115074784-A |
| titleOfInvention | A method for efficient electrolysis of arsenic in refining copper electrolyte |
| abstract | The invention discloses a method for high-efficiency electrolysis and removal of arsenic in refining copper electrolyte, and belongs to the field of non-ferrous metal metallurgy. The method includes the following steps: the concentrations of copper and arsenic in the refined copper electrolyte are 32.5g/L and 38.9g/L respectively, the lead plate is used as the anode, the copper plate is used as the cathode, the exposed area of the electrode is 2×2cm 2 , and the rest of the Covered with silica gel, the temperature during electrolysis was 20°C, and the current density was 0.5 A/cm 2 . Take 300 mL of arsenic-containing electrolyte, first electrolyze the electrolyte with constant current for 4 hours, and then filter to separate the solid and liquid. CuSO 4 ·5H 2 O was added to the filtered electrolyte to maintain the copper concentration in the electrolyte at 2g/L, and then the current density was maintained at 0.5A/cm 2 . CuSO 4 ·5H 2 O maintains the copper ion concentration in the electrolyte. After 8 hours of electrolysis, the concentration of arsenic in the electrolyte can be reduced to 6.5g/L, which meets the production demand. The advantages of the invention are that the high-efficiency removal of arsenic in the refined copper electrolyte is realized, the process is simple, the removal efficiency is high, the generated solid can be sold as blister copper, the electrolyte can be returned to the production system for recycling after the arsenic removal, and the economic benefit is high. Provide support for the harmless treatment and recycling of arsenic-containing waste liquid in the copper refining process. |
| priorityDate | 2021-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.