PROCESS FOR PRODUCING GRANULATES OF ALKALI METAL CYANIDE AND ALKALINE EARTH CYANIDE, AND CYANIDE GRANULATES WITH HIGH PURITY OBTAINED IN SUCH A MANNER

摘要

the invention concerns a procedure for the direct production of alkalicyanid and erdalkalicyanid granules from an hcn containing gas and an aqueous solution or suspension of an alkali or erdalkalihydroxids.$a and implemented within a fluidised bed reactor for spru00fchgranulation, with a solution or suspension of the hydroxide to be sprayed onto seeds of cyanide and, at the same time, the reactor containing a cyanwasserstoff gas into water by means of a fluidisierungsgase it evaporates. $a preferred fluidisierungsgas is water vapor.the reaction gases from a bma or andrussow process with water quenched and the gas mixture used as fluidisierungsgas. $a, using a co2 free hcn containing gas are alkalicyanidgranulate with outstanding eigenschaftskombination, including a content alkalicarbonat and alkaliformiat of less than 0.4 wt.% available.