http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112028101-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-18 |
| filingDate | 2020-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112028101-B |
| titleOfInvention | A kind of preparation method of dispersible calcium carbonate |
| abstract | The invention belongs to the technical field of calcium carbonate preparation, and in particular relates to a method for preparing dispersible calcium carbonate. The method is to prepare precipitated calcium carbonate by twice carbonization of calcium hydroxide powder, and obtain calcium hydroxide by high-temperature digestion of calcium oxide dry method Powder, after the powder is slag-removed by air flow, it is prepared into calcium hydroxide slurry with water. First, a small part of the calcium hydroxide slurry is carbonized at low temperature to form calcium carbonate with a small particle size as a seed crystal, and then most of the calcium hydroxide slurry is added to the In the calcium carbonate slurry after the above-mentioned carbonization reaction is completed, after the second carbonization reaction, the precipitated calcium carbonate product is obtained through dehydration, drying, crushing, packaging and other processes. Using this method to produce precipitated calcium carbonate products has the advantages of not being affected by climate in production regulation, controllable particle size, good dispersibility, etc., and is suitable for multi-variety production. |
| priorityDate | 2020-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.