http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112408461-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23K20-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23K20-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G9-02 |
| filingDate | 2020-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112408461-B |
| titleOfInvention | A kind of preparation method of feed grade active zinc oxide |
| abstract | The invention discloses that the invention provides a preparation method of feed-grade active zinc oxide, comprising the following steps: 1) putting zinc oxide in ammonia water, and then slowly adding ammonium carbonate solution, the concentration of the ammonia water is 10-15wt%, The concentration of the ammonium carbonate solution is 10-20wt%, the temperature is kept at 35-40°C, and the leaching is performed for 3-3.5 hours; 2) filtrate is obtained by filtration, and the ammonium carbonate solution with a concentration of 10wt% is added to the filtrate, stirred evenly, and adjusted The solubility of ammonium ion is 8-10mol/L; 3) slowly add zinc powder, heat to 50-60 ℃ simultaneously, keep 10-30min, filter to obtain filtrate; 4) add potassium permanganate in the filtrate, filter; 5 ) add slaked lime, stir evenly, then add ferrous sulfate, be warming up to 80-85 ℃, filter after precipitation; 6) slowly add zinc powder again, after the replacement reaction is completed, filter; 7) thermally deammonia the filtrate, wash with water, Dry and roast to obtain feed-grade active zinc oxide. The active zinc oxide prepared by the invention can be used in feed addition, and has few impurities and high uniformity. |
| priorityDate | 2020-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.