Method for determining quartz, calcite and dolomite with critical sizes from a mixture of raw materials for Portland cement clinker preparation

(22) 25.09.2017

(43) 29.03.2019

(57) The invention relates to a method for determining the content of quartz, calcite and dolomite with critical sizes from a mixture of raw materials for Portland cement clinker preparation. The claimed method consists in wet sifting, on the sieve of 125 μ m, followed by optical microscopy on the resulting wet residue, for determining the content of calcite with sizes higher than 125 μ m, or successively dissolving the wet residue in acetic acid solution and hydrochloric acid solution, followed by determining the content of dolomite, namely, wet sifting on the sieve of 45 μ m, followed by dissolving the residue in hydrochloric acid solution, followed by determining the content of quartz with sizes higher than 45 μ m by optical microscopy.

(71) Ceprocim S.A. (RO)