METHOD FOR PRODUCING PURE stable suspension of superfine calcium hydroxide

摘要

1. A process for preparing a stable suspension of finely divided calcium hydroxide, characterized by mixing reagent grade calcium hydroxide, and chemically precipitated calcium carbonate in the ratio of 2: 0.1-2 on a sieve with mesh size less than 100 microns with subsequent heat treatment furnace during heating from 10 to 30 degrees / min to 600-1000 ° C and holding at this temperature for 1-5 hours, after holding the reaction mass is cooled when disconnecting heating for 1-12 hours, the cooled product was passed through a sieve with a mesh size of 50 microns and a sprinkled portionwise with esitel with a high speed mixer, maintaining the internal temperature not above 30 ° C, and after the last portion of the resulting suspension was stirred without air for 2-3 p.2. A method according to claim 1, characterized in that the heat transfer is accomplished by circulating water in a water jacket.