Surface modification of calcite by wet-stirred ball milling and its properties

This paper investigates the surface modification of calcite from the Niğde region of Turkey with sodium oleate (SDO) as a modification agent, which is incorporated into the calcite with wet ultra-fine grinding in a laboratory stirred ball mill. The effect of surface modification is evaluated by a floating test, which measures the active ratio (AR), fourier transform infrared spectrometry (FT/IR) and thermogravity analyses (TG-DTA). The results indicate that the hydrophilic surface of calcite becomes hydrophobic after the incorporation of SDO through wet-stirred ball milling.

This study investigates the modification of calcite with sodium oleate (SDO), which is incorporated into the calcite with wet ultra-fine grinding in a stirred ball mill. Firstly, the optimum modification trial parameters were determined using the Yates technique. In the second study, the active ratio was measured, and FT/IR and TGA analyses of the obtained modified product were conducted.Figure optionsDownload as PowerPoint slideHighlights
► We investigated surface modification of calcite with sodium oleate (SDO).
► The tests were made by using wet stirred ball mill.
► The results were evaluated by a floating test.
► The results indicate that the calcite surface becomes hydrophobic after modification.