Flotation of fine particles of Egyptian ground calcium carbonate as added value of filler in some industries

Abstract

A flotation process is presented and the work carried out to find optimum conditions to minimise the colouring material in ground calcium carbonate is described. The feed material is the overflow product from a hydrocyclone, which results from using a Denver attritioning machine with semiautogenous grinding for 1 h at 1:1 ore/water ratio. By using sodium silicate as deprassant and oleic acid as collector with pH 9, the iron content (as colouring material impurities) is decreased from ,0 . 9 in the original sample to ,0 . 45 in the rougher concentrate. However, by cleaning the rougher concentrate, the iron content is decreased to 0 . 26%.

Beneficiation of Beni-Khaled Limestone Ore for Beneficial Industrial Uses

“…Still remain the most important industrial uses of limestone, as it is considered as a necessary material for more than hundred industry such as metallurgical industries, glass, food industries, chemical industries and as a filling material, in addition to its environmental purposes [9][10][11].…”

Characterization of Calcium Carbonate Rocks, East El Minya Deposits for Possibility Uses as Industrial Raw Materials

“…The most significant constituents of limestones as above mentioned are calcium oxide (CaO), alumina (Al2O3), iron oxide (Fe2O3), magnesium (MgO), and silica (SiO2) [1,3]. Industrial specifications of calcium carbonate (%) for some different uses are shown in Table 1 [4][5][6][7][8][9][10]. Some research work has been carried out on the evaluation of Egyptian carbonate rocks for construction purposes include geotechnical analyses of limestone specimens from north to south Egypt.…”