http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2652233-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0fe8881558312c6b470a4b5ee5a78258 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-265 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D17-004 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D17-001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B14-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C3-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-675 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-185 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B14-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-67 |
| filingDate | 2014-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76bc457cc1ef7ab39437be1774a61e71 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e07bd87bbd7e6683eedfc45ac5739919 |
| publicationDate | 2018-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2652233-C2 |
| titleOfInvention | Process for improving the particle size distribution of a calcium carbonate-containing material |
| abstract | FIELD: chemistry. n SUBSTANCE: invention can be used for producing paper and cardboard products, cosmetic, plastic products, sealing materials, paints, coatings. For the preparation of an aqueous suspension comprising at least one calcium carbonate-containing material, the process comprises providing a substantially dispersant-free aqueous suspension of calcium carbonate-containing material and pre-heating the suspension to a temperature of from 40 to 95 °C. Aqueous suspension is contacted before and/or during and/or after pre-heating step and/or before and/or during and/or after wet-grinding step, with a base for obtaining an aqueous suspension having a pH measured at 25 °C of > 9.0. Wet-grinding of the pre-heated suspension is performed at an initial temperature of 40–95 °C for obtaining an aqueous suspension of calcium carbonate-containing, having an average size value [d 80 /d 20 ] of particles having an average particle size d 80 and particles, having an average particle size d 20 value is not more than 2.5. Maximum temperature achieved during wet-grinding is approximately 100 °C. Wet-grinding is carried out using a milling medium having a weight median particle size diameter d 50 , which is from 0.1 to 2.5 mm. n EFFECT: invention allows to obtain narrow particle size distribution at low BET specific surface area, to reduce the amount of dispersing agents. n 16 cl, 3 dwg, 8 tbl, 11 ex |
| priorityDate | 2013-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.