Process for preventing caking and obtaining flowability of alkali chlorides and salt mixtures thereof
AssigneeDuetsche Gold- und Silber-Scheideanstalt vormals Roessler
InventorsHelmut Knorre, Joachim Fischer, Gerhard Pohl
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Abstract
Caking of industrial alkali metal chlorides and mixtures containing them in storage is prevented and a flowable product is obtained by adding a hydrophilic and/or a hydrophobic material, in combination with a complex iron cyanide, on a hydroxyl group containing carrier to produce a permanent moisture content of at least 0.01 weight percent of water on the salt.
Claims14
A flowable alkali metal chloride composition resistant to caking on storage including as an anticaking agent (A) a complex iron cyanide (B) a water insoluble, inorganic, inert, finely divided hydroxyl group containing precipitated or pyrogenically formed metal oxide or metalloid oxide carrier material, (C) a hydrophobizing material and (D) a polycarboxylate hydrophilizing material, said materials (A), (C) and (D) being present on B, said anticaking agent providing a permanent moisture content of at least 0.01 weight % of water on the salt.
Dependencies are inferred from the claim text.