摘要：Changing the source of raw materials for producing aluminum
and the emergence of a huge number of secondary alumina waste (foundry
slag, sludge, spent catalysts, mineral parts of coal and others that are formed
in various industrial enterprises) require the creation of scientific and theoretical foundations for their processing. In this paper, the aluminum alloys
(GOST 4784-97) are used as an aluminum raw material component, containing the aluminum component produced as chips in the machine-building
enterprises. The aluminum waste is a whole range of metallic aluminum alloys including elements: magnesium, copper, silica, zinc and iron. Analysis
of the aluminum waste Al- Zn-Cu-Si-Fe shows that depending on the content of the metal the dissolution process of an aluminum alloy should be
treated as the result of the chemical interaction of the metal with an alkaline
solution. It is necessary to consider the behavior of the main components of
alloys in an alkaline solution as applied to the system Na2O - Al2O3 - SiO2 -
CO2 - H2O.
