| 摘要 |
<p>The invention relates to a process for the separation of phosphate minerals from a phosphate ore, especially from a phosphate-carbonate ore, by using in the flotation as the reagent selective for phosphate mineral a compound having the general formula I, or a salt or amide <IMAGE> of the same, in which formula X is -CH-CH-, <IMAGE> Y is <IMAGE> n is a number 0-40, in which case, when n is greater than 1, groups <IMAGE> may be the same or different, m is 0 or 1, B is -NRR2 or, when m and n are 0, <IMAGE> R is H, R3 or <IMAGE> and R1, R2, R3, R4 and R5, which may be the same or different, each stand for an aromatic, araliphatic or straight-chain or branched aliphatic hydrocarbon which contains 1-30 carbon atoms and which is possibly substituted by an oxygen or nitrogen function, with the exception of sulfosuccinic acid monolkyl amide according to Formula I. The invention also relates to such a reagent. <IMAGE> I</p> |
