A PROCESS FOR THE MANUFACTURE OF SUPER POZZOLAN FROM ASH (INCLUDING FLY ASH) OBTAINED BY THE COMBUSTION OF COAL OR COKE AND SUPER POZZOLAN OBTAINED BY THE SAID PROCESS

摘要

: A process for the manufacture of super pozzolan from ash (including flyash) obtained by the combustion of coal or coke comprisesg the steps of separating the silica and alumina present as phase A in the said ash from the silica and alumina present as reactive phase B in the said ash, by separation means, such as (i) air classification (ii) hydro-cycloning (iii) flotation (iv) sieving. The separated reactive phase B so obtained is ground, if necessary, to a fineness necessary for rendering the said reactive phase B super pozzolanic.