http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020010689-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dc0b0e0d75ac05b340a665bcfba1ae74 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-84 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-024 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C3-063 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-185 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-021 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-18 |
| filingDate | 2018-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb9786fa07f533d2f8e4baeef34061c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2bf7e1506f65a2c6f69b945ed714955 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e533564eb22b8a367231dfc3c4fa8c39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f13cf6577810a2ffd1b9207445a31fba |
| publicationDate | 2020-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2020010689-A1 |
| titleOfInvention | Preparation method for nanoprecipitated calcium carbonate having core-shell structure |
| abstract | A preparation method for nanoprecipitated calcium carbonate having a core-shell structure, comprising the following steps: (1) the preparation of core-nanoprecipitated calcium carbonate: calcining low-grade limestone to obtain quicklime, digesting and removing slag, and adjusting the solid content of a first lime slurry; delivering the first lime slurry into a carbonation tower for a carbonation reaction to obtain a core-nanoprecipitated calcium carbonate suspension; (2) the coating of the shell: calcining high-grade limestone to obtain quicklime, digesting and removing slag, and adjusting the solid content of a second lime slurry; to coat a shell, mixing the core-nanoprecipitated calcium carbonate suspension with 10-30 wt.% of the second lime slurry, and preparing a suspension of nanoprecipitated calcium carbonate having a core-shell structure by employing a method of carbonation or a method of aging; obtaining nanoprecipitated calcium carbonate having a core-shell structure after post-treatment. The preparation method controls the shell coating process, and ensures that the nanoprecipitated calcium carbonate having a core-shell structure has a cube-like shape. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115557524-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114291835-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114291835-A |
| priorityDate | 2018-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.