The features of flotation of hard grained materials during beneficiation of diamond-bearing ores have been conduced. The methods of flotation: foam separation, flotation in pneumatic type of machine, membrane flotation have been considered. The short description of main and assisting equipments has been done.

1. Zlobin M. N. Razrabotka i promyshlennoe osvoenie tekhnologii i oborudovaniya dlya izvlecheniya almazov iz rud (Development and industrial exploration of technology and equipment for diamond extraction from ores). Avtoref. dis. ... d-ra tekhn. nauk (Abstract of a thesis ... Doctor of Engineering Sciences). Mirny, 1995.

2. Zlobin M. N. Sovershenstvovanie tekhnologii i oborudovaniya dlya flotatsionnogo obogashcheniya almaznykh rud (Improvement of technology and equipment for flotation beneficiation of diamond ores). Gornyy Zhurnal – Mining Journal. 1996. No. 7-8.

3. Zlobin M. N. Sovershenstvovanie osnovnogo i vspomogatelnogo oborudovaniya dlya krupnozernistoy flotatsii almazosoderzhashchikh rud (Improvement of base and service equipment for coarse-grained flotation of diamond-bearing ores). Obogashchenie rud – Mineral processing. 1998. No. 4.

4. Zlobin M. N. Sostoyanie i nekotorye puti razvitiya tekhnologii obogashcheniya almazosoderzhashchikh rud na predpriyatiyakh AK «ALROSA» (Conditions and some ways of development of technology of diamond-bearing ores at “ALROSA” Company enterprises). Almazy : sb. nauch. tr. (Diamonds. Coll. of Scientific Paper). Moscow, 2000.