http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111995276-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P40-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2201-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B14-106 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B18-0481 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B12-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B14-044 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B18-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B12-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B14-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B14-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-00 |
| filingDate | 2020-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111995276-B |
| titleOfInvention | Method for solidifying heavy metal in copper tailings by using industrial waste carbide slag and kaolin |
| abstract | The invention discloses a method for solidifying heavy metals in copper tailings by using industrial waste carbide slag and kaolin, which comprises the following steps: s1, drying, crushing and sieving industrial waste carbide slag to obtain carbide powder, drying, crushing and sieving copper tailings to obtain copper tailings powder; s2, uniformly mixing the calcium carbide powder and the copper tailing powder according to the mass ratio of 0.15-0.25: 1 to obtain a mixture A; s3, adding NaOH into water glass, stirring uniformly, modulating the modulus of the water glass to 1.2-1.8, and standing at normal temperature for 20-24 hours to obtain an alkali activator; s4, uniformly mixing the mixture A, the alkali activator and water, wherein the water-cement ratio is 0.2-0.4: 1, the mass ratio of the mixture to the alkali activator is 100: 5-8, obtaining a mixture B; s5, placing the mixture B into a mold, curing at 30-40 ℃ for 28 days, demolding, and standing at normal temperature for 24-28 hours to obtain the geopolymer. The method has simple operation and cheap and easily-obtained raw materials, can reduce the curing cost of the copper tailings, and relieves the environmental pressure on the surrounding ecological environment caused by long-term stacking of the carbide slag and the copper tailings. |
| priorityDate | 2020-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.