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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.00 seconds. 
Milling activators use in the very fine powder material practice.
 Borguľová, Eva ; Kejík, Pavel (referee) ; Svěrák, Tomáš (advisor)
This work deals with the study of clinker dry milling using ball mill with the sferical shaped steel grinding elements in it. Grinding aids are surface active substances, wich separate particles of milled substance and prevent their reaglomeration and can active the proces of the grinding.There will be used PEG, TEA and HEAas a surfactans. Characterization of samples will be performed by granulometry.
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Solubility of power plant fly ashes in high-alkali environment
 Kejík, Pavel ; Opravil, Tomáš (referee) ; Šoukal, František (advisor)
This work deals with study of alkali activated ashes from high-temperature and fluidized bed coal combustion in thirteen powerplants in Czech republic. A solution of 50% sodium hydroxide was used as an alkali activator in this case. Because the two main elements of these secondary raw materials are silica and aluminum, the main part of the work is study of their evolution to solution and dissolve time dependence. The second part is comparing of the phase composition of powerplant ashes before alkali activation and after that.
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National Repository of Grey Literature : 12 records found   previous11 - 12  jump to record:
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5 Kejík, Petr
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