The result of industrial tests of the technology super deep desiliconization of alumina liquors with fractional dose hydrocarboaluminate of calcium 4CaO×Al2O3×0,5CO2×11H2O. Due to this technology solution alumina liquors with higher silicon module (relative weight Al2O3/SiO2) without increasing lime carbonate expenditure.
Industrial tests on the improvement of coarse-grained alumina at the PAR-SUAL Branch are conducted during the period of stable operation of the enterprise. Hydrate hydro classification was included in the apparatus-technological scheme of aluminate solutions processing on special hydro classifiers (HC) of VAMI design. The unbalanced part of fine fractions was eliminated in production.