The froth flotation of a metal sulfide mineral is carried out using a thioamide as the collector in which the thioamide is of the formula ##STR1## R designating C.sub.5 to C.sub.17 alkyls, R' being H or (CH.sub.2).sub.n OR" and n an integer of 1 to 6, while Z is --OR" or ##STR2## where R" means H, CH.sub.3 or C.sub.2 H.sub.5.
一种
金属
硫化物矿物的泡沫浮选是使用一种
硫代酰胺作为收集剂进行的,其中
硫代酰胺的
化学式为##STR1## R代表C.sub.5到C.sub.17烷基,R'为H或(CH.sub.2).sub.n OR",n为1到6的整数,而Z为--OR"或##STR2##其中R"表示H, CH.sub.3或C.sub.2 H.sub.5。