FIELD: polygraphy.
SUBSTANCE: invention relates to the production of paper, namely the use of colloidal precipitated calcium carbonate (cPCC) for adsorption and / or reduction of the amount of at least one organic material in an aqueous medium, which is produced in the paper making or pulping processes. Applied cPCC has a specific surface area of at least 5 m2/g when measured using nitrogen and the BET method. At that, cPCC is in the form of individual particles aggregates of precipitated calcium carbonate (PCC).
EFFECT: enabling effective removal of organic materials from the aqueous medium.
15 cl, 9 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| HYDROPHOBISATED CALCIUM CARBONATE PARTICLES | 2012 |
|
RU2556517C1 |
| METHOD OF REMOVING RESIN | 2008 |
|
RU2469144C2 |
| METHOD FOR MANUFACTURING CALCIUM CARBONATE-CONTAINING MATERIAL WITH PROCESSED SURFACE AND THEREOF APPLICATION FOR REMOVAL OF ORGANIC MATERIAL FROM WATER MEDIUM | 2011 |
|
RU2574242C2 |
| PAPER FILLER | 2004 |
|
RU2345189C2 |
| METHOD OF PRODUCING MATERIALS FROM CALCIUM CARBONATE WITH IMPROVED ADSORPTION PROPERTIES OF SURFACE OF PARTICLES | 2009 |
|
RU2499016C2 |
| PROCESSING OF MATERIALS CONTAINING CALCIUM CARBONATE TO INCREASE AMOUNT OF FILLER IN PAPER | 2013 |
|
RU2585785C1 |
| USE OF ZINC-TREATED PRECIPITATED CALCIUM CARBONATE IN HYGIENE PRODUCTS | 2018 |
|
RU2759668C2 |
| AQUEOUS SILICON-CONTAINING COMPOSITION AND PAPER MAKING PROCESS | 2002 |
|
RU2274692C2 |
| FABRICATION OF COATED SUBSTRATES | 2012 |
|
RU2560349C2 |
| PRECIPITATED CALCIUM CARBONATE WITH HIGH CONTENT OF SOLID SUBSTANCE, WITH DEPOLYMERIZED CARBOXYLATED CELLULOSE | 2016 |
|
RU2680067C1 |
