| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4ddb90f1a94edb75826bad96c47f23c2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3428fd4aa4224737f04e748bc5923a6f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2-045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B14-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-181 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-18 |
| filingDate |
2010-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_297439d645075e5b94b380773b9e5eed |
| publicationDate |
2012-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2012128572-A1 |
| titleOfInvention |
Method of producing calcium carbonate |
| abstract |
A method of producing calcium carbonate. In the method a calcium oxide material is contacted in aqueous phase with carbon dioxide in a plurality of carbonation units. According to the invention, the calcium oxide material is carbonated in a first carbonation unit in an aqueous slurry at a pH in excess of 11.0 in order to produce a calcium carbonate into the aqueous slurry, from the first carbonation unit is withdrawn an effluent formed by an aqueous slurry containing calcium carbonate and calcium hydroxide, and the calcium hydroxide of the withdrawn effluent is then carbonated in a second carbonation unit to produce a calcium carbonate slurry having a pH of less than 6.9. The method allows for the production of both monodisperse particles with a narrow molecular weight distripution and multidisperse particles with a broad molecular weight distribution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2805924-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104129809-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10226747-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114873948-A |
| priorityDate |
2009-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |