FIELD: chemistry.
SUBSTANCE: invention can be used in the chemical industry. A method of obtaining a precipitated calcium carbonate product includes the following stages: (a) formation of a water suspension of precipitated calcium carbonate grains by carbonisation of Ca(OH)2 suspension in the presence of 0.005-0.03 mol Sr in the form of Sr(OH)2 per mol of Ca(OH)2 and (b) formation of the water suspension of the precipitated calcium carbonate product by carbonisation of Ca(OH)2 slurry in the presence of 0.5-5% of dry weight of the precipitated calcium carbonate grains. The precipitated calcium carbonate grains have D50, which is lower than D50 of the precipitated calcium carbonate product. The precipitated calcium carbonate grains also have a content of aragonite polymorph higher or equal to its content in the precipitated product - calcium carbonate.
EFFECT: invention makes it possible to increase the content of aragonite polymorph in the precipitated calcium carbonate.
18 cl, 2 tbl, 3 ex
| Title |
Year |
Author |
Number |
| PROCESS FOR OBTAINING PRECIPITATED CALCIUM CARBONATE |
2014 |
- More, Mark
- Shlotterbakh, Tomas
- Skshipchak, Mate
- Pirker, Robert
|
RU2648923C2 |
| COMPOSITION AND METHOD FOR CONTROLLING WETTABILITY OF SURFACES |
2013 |
- Shelkopf, Joakhim
- Vajttsel, Khans-Joakhim
|
RU2599668C2 |
| METHOD OF PRODUCING DEPOSITED CALCIUM CARBONATE USING LOW-CHARGE POLYMER CONTAINING ACRYLATE AND/OR MALEATE |
2009 |
- Gejn Patrik Artur Charl'Z
- Bjuri Mattias
- Pol' Mikhaehl'
|
RU2509788C2 |
| PRECIPITATED CALCIUM CARBONATE PRODUCTION |
2015 |
- Maurer, Marc
- Jacquemet, Christian
- Skrzypczak, Mathieu
|
RU2660880C2 |
| METHOD OF PRODUCING PRECIPITATED CALCIUM CARBONATE, METHOD OF INCREASING CONTENT OF DRY SUBSTANCE OF PRECIPITATED CALCIUM CARBONATE PRODUCT AND REACTOR SYSTEM FOR PRODUCING PRECIPITATED CALCIUM CARBONATE |
2008 |
- Khansen Kore Vid
- Pedersen Mogens
|
RU2436734C2 |
| SURFACE-TREATED PRECIPITATED CALCIUM CARBONATE, METHOD FOR PRODUCTION THEREOF AND USE THEREOF |
2008 |
- Dzherard Daniel' E.
- Gejn Patrik A.Ch.
- Shol'Kopf Joakhim
- Vajttsel' Gans-Joakhim
|
RU2470052C2 |
| PROCESS FOR PREPARING SCALENOHEDRAL PRECIPITATED CALCIUM CARBONATE |
2013 |
- Uenk Dzho
- Sonders Dzhordzh
- More Mark
- Skshipchak Mate
|
RU2596763C2 |
| CALCIUM CARBONATE WITH CHEMICALLY TREATED SURFACE FOR USE AS A LUMPING INHIBITOR |
2015 |
|
RU2664575C1 |
| OBTAINING HIGHLY PURE PRECIPITATED CALCIUM CARBONATE |
2011 |
- Tavakkoli, Bakhman
- Zetemann, Jorg
- Pol, Mikhael
- Shmeltser, Tomas
|
RU2602140C2 |
| METHOD OF PRODUCING MINERAL MATERIAL USING ZIRCONIUM OXIDE GRINDING BEADS CONTAINING CERIUM OXIDE, OBTAINED PRODUCTS AND USE THEREOF |
2006 |
- Rajner Kristian
- Pol' Mikhel'
|
RU2432376C2 |
