FLOTATION PROCESS FOR RECOVERING FELDSPAR FROM A FELDSPAR ORE

摘要

A flotation process for recovering feldspar from a feldspar containing feed material comprising the following steps: (1 ) forming an aqueous suspension of a feldspar containing feed material in the absence of hydrofluoric acid wherein the suspension comprises from 0.004 to 0.3 %wt. of a flotation reagent comprising: (a) one or more amines containing at least one aliphatic hydrocarbon chain linear or branched saturated or unsaturated comprising 8 to 50 carbon atoms or a salt thereof; and (b) one or more primary secondary or tertiary alcohols containing at least one aliphatic hydrocarbon chain linear or branched saturated or unsaturated comprising 8 to 50 carbon atoms; the ratio of (a) to (b) ranging from 500:1 to 1 :40 by weight; (2) agitating the obtained suspension to produce a feldspar containing fraction and (3) separating the feldspar containing fraction.