method for electrostatic treatment of mineralgemischen

摘要

Conditioning agents (e.g. o-cresotic acid, salicylic acid) used for the preliminary chemical treatment of mineral mixtures, esp. of crude K-salts, before electrostatic separation, are subjected to acidic or basic gases or vapours before use. The separation thereby requires less conditioning agent. The treatment can be carried out with a single gas/vapour, mixtures or several cpds. applied successively. The gas/vapour state (if not existing under normal conditions) is attained by reduced pressure or elevated temp. The conditioning agent can be in pure form as a mixture, in soln. or on a carrier.