Abstract

The conducted experiments with the waste asbestos production of the fraction -0,5÷+0,074 mm at 40-100% changes of expense of sulfuric acid for magnesium oxide sulfation allowed to control the residual magnesium content in the filter cake and sulfuric acid in the solution, the degree of magnesium and iron extraction in productive solutions, the speed of lightening productive solutions. The investigations proved that there is ability to make leaching and two-stage rinsing of the filter cake in one unit