MAKING ARTICLE PRIMARILY BOUND BY CARBONATE VIA CARBONISATION OF ALKALINE MATERIALS Russian patent published in 2013 - IPC C04B40/02 C04B28/08 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention relates to making articles by carbonisation. The method of making an article primarily bound by a carbonate involves producing granular alkaline material with pH of at least 8.3, containing at least one alkali-earth metal silicate phase, pressing said material to obtain a workpiece with porosity of not more than 37 vol. % and permeability of at least 1·10^-12 cm², reacting the workpiece, not saturated with moisture, with CO₂ at temperature of at least 70°C and pressure of at least 0.5 MPa in the presence of water to obtain at least 5 wt % carbonates. The article primarily bound by a carbonate is obtained using said method. The invention is developed in subclaims.

EFFECT: improved mechanical and/or physical-chemical properties.

34 cl, 10 tbl, 22 dwg