Abstract
There were presented results of mineral and chemical composition of ash and slag waste study from Aleksin CHP (Tula Region). There was proposed scheme of ash and slag waste treatment for the purpose of separation of particles not contained rare earth metals (REM) as well as contained REM, for increase of recovered elements in ashes. For preliminary concentrating of valuable elements in ashes and slags, as experimental studies shows, we should carry out treatment of ashes and slags on concentrating table with subsequent magnetic or electromagnetic separation. Preparation of ashes and slugs under a proposed technique allows substantially increase recovery of precious and rare earth metals from ashes and slugs on the average by 10-25 % as well as decrease volume of treated semi-products, and hence, increase productivity of plant for bacterial leaching of metals.
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