http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113247953-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-72 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G37-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-004 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-868 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G37-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-00 |
| filingDate | 2021-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113247953-B |
| titleOfInvention | Method for solidifying chromium slag by copper-containing electroplating sludge |
| abstract | The invention belongs to the fields of chromium chemical industry and solid waste disposal, and particularly relates to a chromium slag detoxification method. The invention mixes the copper-containing electroplating sludge as an additive with the chromium slag, and the quantity ratio of Cu in the copper-containing electroplating sludge to Cr in the chromium slag is controlled to be n (Cu)/n (Cr) 1-1.2. After the copper-containing electroplating sludge and the chromium slag are mixed, a ball mill is used for dry grinding for 2-3h to mix uniformly, the mixed material is transferred into a high-temperature kiln to be heated for 1-2h, and the temperature is controlled at 1300 ℃ and 1350 ℃. The leaching concentration of hexavalent chromium in the treated sintering product is lower than the limit value of hazardous waste identification standard-toxicity identification (GB5085.3-2007), and the hexavalent chromium meets the regulation. The chromium slag detoxification method provided by the invention has the advantages of low cost, rapid reaction, difficult reoxidation of detoxified chromium slag, and good popularization and application prospects. |
| priorityDate | 2021-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.