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Vol 167 No 1
Pages:
217-219
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RUS
Research article
Metallurgy

Experimental-industrial tests of lime hydrochemical treatment of nepheline sludge from alumina production

Authors:
A. V. Starshinov
About authors
  • Postgraduate student G.V. Plekhanov Saint Petersburg Mining Institute
Date submitted:
2005-06-28
Date accepted:
2005-07-19
Date published:
2006-01-01

Abstract

The necessity of additional extraction of alkali from nepheline sludge and increase of its activity is shown. The chemistry of interaction of alkaline phases of nepheline sludge with lime milk and carbon dioxide is given. On the basis of experimental studies, the technological mode of extraction of alkali from nepheline sludge is substantiated. The changes made in the apparatus-technological scheme necessary for the process are presented. Experimental-industrial results of application of lime treatment are given.

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