An overview of the composition of wolframite ores of the Akchatau deposit and the technologies for processing concentrates using NaOH and Na₂CO₃ by hydro- and pyrometallurgical methods is given, and the disadvantages associated with both the technology and the equipment are noted. To develop a technology for processing Akchatau wolframite concentrates, samples of ore materials were taken, the chemical and mineralogical composition of the samples was studied, and enrichment was carried out to obtain rich concentrates. The kinetics of the sintering of the wolframite concentrate with soda was investigated, the dependences of the degree of transformation of the tungsten minerals into sodium tungstate were obtained, and the rate constants, the order of the reaction, and the values of the apparent activation energy were calculated. The results of sintering an enlarged sample of wolframite concentrate with soda in a muffle furnace are presented. After the subsequent leaching, studies were carried out to purify the obtained solutions of sodium tungstate from the impurities while eliminating the operations of the neutralizing solutions through the use of electrodialysis with an MK-40 cation-exchange membrane. The scheme of processing the wolframite ores of Akchatau is proposed.

An effective process flow-sheet for valuable component recovery from fine fractions has been developed based on Satpayev deposit ilmenite ore mineralogical and technological property analysis. Ore mineral composition was studied using X-ray diffraction and electron probe microanalysis. Experimental studies were conducted using a Falcon L40 centrifugal concentrator and a WHIMS 3X4L high-gradient magnetic separator. High efficiency of fine fraction centrifugal beneficiation was established: titanium relative recovery efficiency from fine fractions exceeded 86% for −0.03 + 0.02 mm fraction and exceeded 57% for the −0.02 + 0.01 mm fraction. Larger particle size classes bigger than 0.03 and 0.04 mm titanium recovery exceeded 94%. Concentrate cleaning using high-gradient magnetic separation resulted in a product with a TiO₂ grade of 47% and titanium recovery of up to 90% from the operation. The process flow-sheet designed resulted in ilmenite concentrate production with a TiO₂ grade of 53.40% and a recovery rate of 92.30%, as well as zircon-bearing and quartz products suitable for further processing.