WO 2015/028115 A1

Process and apparatus for production
of lime products and pozzolan

(22) 31.07.2014

(43) 05.03.2015

(57) The process of the invention for production of lime products and pozzolan is characterized in that a. cement raw meal is heat-treated in a suspension-type heat exchanger to give hot meal, b. any free lime present in the hot meal is slaked by addition of water, c. the hot meal, after the free lime has been slaked, is subjected to an attrition grinding operation, such that a Ca-rich finer fraction of lower specific gravity and an Si-rich coarser fraction of higher specific gravity arise and d. the Ca-rich finer fraction of lower specific gravity and the Si-rich coarser fraction of higher specific gravity are separated from one another.

(71) ThyssenKrupp Industrial Solutions AG, ThyssenKrupp-Allee 1, 45143 Essen (DE)

(84) ARIPO (BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW), Eurasian (AM AZ BY KG KZ RU TJ TM), European (AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR), OAPI (BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN TD TG)

x

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