http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110078113-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af413ce99c99a3b2e7b3149517fef472 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G9-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G9-02 |
| filingDate | 2019-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c87f3610901edfcc2df0a3407eb19dc8 |
| publicationDate | 2019-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110078113-A |
| titleOfInvention | A kind of production process of leaching, calcining and purifying secondary zinc oxide |
| abstract | A production process for leaching, calcining and purifying sub-zinc oxide, comprising the following steps: mixing sub-zinc oxide powder with water for granulation; sending sub-zinc oxide particles into a roasting kiln for 2-3 hours, and the kiln temperature is 300°C-500°C; cooling Afterwards, ammonia water is used as the leaching agent, and the liquid-solid volume-to-mass ratio is 5-8:1; the leaching temperature is 40-50 °C; the leaching time is 1-3 h, and filtered; hydrogen peroxide is added to the filtrate, the temperature is 45-65 °C, and the temperature is maintained at 0.5 ‑1h, filter; heat the filtrate to 80～100℃, at 0.02～0.05MPa until the liquid is completely volatilized; wash the product 3-5 times, and the volume ratio of liquid to solid is 2-3:1; dry and pulverize the washed product It is then placed in a calcining kiln, calcined at 600-700°C for 2-3 hours, and cooled to obtain purified secondary zinc oxide. The invention has obvious social environmental protection benefits, simple process, low cost and low energy consumption. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110735049-A |
| priorityDate | 2019-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.