http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110921688-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/C22B23-0461 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F5-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G51-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F5-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G53-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F5-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F5-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G51-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G53-04 |
| filingDate | 2019-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110921688-B |
| titleOfInvention | Active magnesium oxide and preparation method and application thereof |
| abstract | The invention relates to the technical field of inorganic salt, and provides active magnesium oxide and a preparation method and application thereof, wherein the preparation method comprises the following steps: mixing light-burned magnesium powder, magnesium chloride and water, and carrying out hydrothermal reaction to obtain magnesium hydroxide precipitate and calcium chloride solution; immersing the magnesium hydroxide precipitate in an ammonium chloride aqueous solution for leaching to obtain a magnesium chloride solution, ammonia gas and leaching residues; mixing the magnesium chloride solution, ammonia gas and carbon dioxide to carry out magnesium precipitation reaction to obtain basic magnesium carbonate precipitate; and drying and calcining the basic magnesium carbonate precipitate in sequence to obtain the active magnesium oxide. According to the invention, through magnesium chloride decalcification and ammonium chloride magnesium leaching, insoluble impurities such as silicon, calcium and the like are left in ammonium chloride leaching residues, which is beneficial to improving the purity and activity of a final product. The magnesium oxide obtained by the method provided by the invention has high purity and activity, the mass content of MgO in the active magnesium oxide is more than or equal to 98%, and the activity is more than 95%. |
| priorityDate | 2019-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.