| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c83bb27b0dc6744eb51330402c636ba6 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-265
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-181
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F5-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F5-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B31-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-181
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-185 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-18 |
| filingDate |
2012-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62c6870261426706f44fb490b9664f8d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f001973a82180c15330c29d963ae484 |
| publicationDate |
2015-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20150058558-A |
| titleOfInvention |
Precipitated calcium carbonate from pulp mill waste having an improved brightness, method for the production and use thereof |
| abstract |
The present invention relates to a process for the preparation of a precipitated divalent metal ion carbonate product from a divalent metal ion carbonate recovered from waste wherein the precipitated divalent metal ion carbonate product has an improved brightness, Providing a low purity bivalent metal ion carbonate material recovered from the waste; Calcining the divalent metal ion carbonate material to obtain a divalent metal ion oxide; Slaking divalent metal ion oxides to obtain an aqueous suspension of divalent metal ion hydroxides; Carbonating the aqueous suspension of divalent metal ion hydroxide with a carbon dioxide containing compound to obtain fine precipitated divalent metal ion carbonate particles; Treating the fine precipitated divalent metal ion carbonate particles to obtain fine discontinuous precipitated divalent metal ion carbonate particles; Adding a fine discrete precipitated divalent metal ion carbonate particle to an aqueous suspension of a divalent metal ion hydroxide obtained by digestion of a high purity divalent metal ion hydroxide to obtain a resulting reaction mixture; And carbonating the resulting reaction mixture to obtain a precipitated divalent metal ion carbonate product with improved brightness. |
| priorityDate |
2011-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |