The results of foamy separation of diamond-containing kimberlites at "ALROSA" beneficiation plants are presented. The variants of reactant procedures using in flotation of diamond-bearing ores with varying basic reactants relating their collecting properties and selectivity are presented. Actuality of oil fuel replacement by new MMF-280 reactant collector, fabricated via processing of oil from Irelyakhskoe deposit, as well as of usage of electrochemically processed waste water as activating reactant is substantiated.