Almalyk branch of NUST MISIS, Almalyk, Uzbekistan:

S. R. Khudoyarov, Cand. Eng., Associate Professor, Deputy Director for Educational Work, e-mail: suleyman0677@yandex.ru

Kh. R. Valiev, Cand. Eng., Associate Professor, Dept. of Metallurgy

Almalyk branch of the Tashkent State Technical University, Almalyk, Uzbekistan.
M. M. Yakubov, Dr. Eng., Professor, Dept. of Metallurgy

JSC Uzmetkombinat, Bekabad, Uzbekistan:
R. Kh. Pirmatov, General Director

The article deals with the involvement of accumulated and formed technogenic formations in the form of steel-making slag and dust-like waste from ferrosilicon production into processing, in order to obtain additional valuable components from industrial waste. To isolate them, various methods of hydraulic classifi cation, jigging, enrichment have been investigated, and gravitational enrichment on a concentration table is recognized as the most optimal. The possibilities of using technogenic waste of aspiration dust from the production of ferroalloys – microsilica containing at least 85% amorphous silica in its composition – can be used for the production of sodium silicate binder (liquid glass) by the autoclave method. The resulting material can be used as an import-substituting raw material in the production technology of manual arc welding electrodes.

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