Dry Sintering of Nepheline – A New More Energy Efficient Technology

The future development of mineral raw material base in alumina's production is vary widely with resources development of low-grade alumina stock. It is actual for countries and regions with limit or stock out of traditional bauxite raw. Significant opportunities are presents the natural aluminosilicate as part of urtite, rischorrit, ijolite and the others alkali rocks and also the dump waste products of mine-mill consist of the alumosilicates incorporated overburden rocks and stocker's middlings. At the same time essential to the efficient use such materials is considerations of their chemical and mineral composition, mole ratio in calciferousaluminosilicate dry mix, sintering temperature and other parameters that determine the recovery of valuable raw material components. The future development of raw material base for the production of alumina in the central part of Siberia is strongly associated with the development Goryachegorsk deposits of nepheline ores. Experimental results is allow to clarify chemical and mineralogical composition of sample of nepheline concentrate' obtained by Goryachegorsk field's ore beneficiation and to determine the optimal conditions for its processing with the extraction in an alkaline aluminate solution alumina and alkaline components. The obtained results establish the possibility of achieving valuable components extraction rates of more than 90%, which exceeds or matches the existing level for the same raw materials, and combined with the implementation of other resource-saving solutions can rely on high efficiency of the process.

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Dry Sintering of Nepheline – A New More Energy Efficient Technology

Cited by 8 publications

References 1 publication

Low-Quality Aluminum-Containing Raw Materials: Experience, Problems and Prospects

Low-Quality Aluminum-Containing Raw Materials: Experience, Problems and Prospects

Opportunities of Pseudoboehmite Processing from Aluminum Content Raw Material at Sintering Method

Determination of the Optimal Technological Conditions of Processing of the Alkali Alumosilicate

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