Moscow State Mining University, Moscow, Russia:

A. A. Abramov, Professor, e-mail: AbramovAA31@mail.ru

The essence of selectivity of reagents-modifiers action is considered along with requirements of flotation theory to this selectivity and conditions for realization of these requirements in practice. It is shown that increasing of selectivity of reagents-modifiers in the processes of bulk and selective flotation can be reached by application of physical-chemical models for optimum operating conditions of these reagents-modifiers in automation systems. There are given the theoretically proved and experimentally confirmed models, whichare necessary for increasing of selectivity and stabilization of technological processes, and for increasing of technological indices of flotation and realization of a full water-turn at factory. There is discussed the outlook of usage of complex inorganic, organic and metal-organic compounds as new selective reagentsmodifiers. It is proved that the theoretical essence of selectivity of these compounds is based on the conformity of electronic and steric parameters of reagent and a surface of minerals.

1. Abramov A. A. Flotatsionnye metody obogashcheniya (Flotation methods of concentration). Third edition, revised and enlarged. Moscow : Publishing House of Moscow State Mining University, 2008. 710 p.
2. Abramov A. A. Tekhnologiya pererabotki i obogashcheniya rud tsvetnykh metallov. Tom III. Kniga 1. Rudopodgotovka i Cu-, Cu – Py-, Cu – Fe-, Mo-, Cu – Mo-, Cu – Zn- rudy (575 s.). Kniga 2. Pb-, Pb – Cu-, Zn-, Pb – Zn-, Pb – Cu – Zn-, Cu – Ni-, Co-, Bi-, Sb-, Hg-soderzhashchie rudy (472 s.) (Theory of processing and concentration of non-ferrous metals` ores. Volume III. Book 1. Ore preparation and Cu, Cu – Py, Cu – Fe, Mo, Cu – Mo, Cu – Zn ores (575 p.). Book 2. Pb, Pb – Cu, Zn, Pb – Zn, Pb – Cu – Zn, Cu – Ni, Co-, Bi-, Sb-, Hg- contai ning ores (472 p.)). Moscow : Publishing House of Moscow State Mining University, 2005.
3. Abramov A. A. Flotatsiya : sobranie sochineniy. Tom 6 : Fiziko-khimicheskoe modelirovanie protsessov (Flotation : collection of proceedings. Volume 6 : Physical and chemical modeling of processes). Moscow : Publishing House of Moscow State Mining University “Gornaya kniga”, 2010. 607 p.
4. Abramov A. A. Flotatsiya : sobranie sochineniy. Tom 7 : Reagenty-sobirateli (Collection of proceedings. Volume 7. Flotation. Reagents-collectors). Moscow : Publishing House of Moscow State Mining University “Gornaya kniga”, 2012. 606 p.
5. Konev V. A. Flotatsiya sulfidov (Flotation of sulphides). Moscow : Nedra, 1985. 262 p.
6. Bocharov V. A., Ignatkina V. A. Osobennosti ispolzovaniya kompozitsiy sobirateley v tekhnologii selektivnoy flotatsii piritnykh rud tsvetnykh metallov (Peculiarities of usage of the collectors' compositions in the technology of selective flotation of pyrite ores of non-ferrous metals). Trudy mezhdunarodnogo nauchnogo simpoziuma “Nedelya gornyaka 2010” : sbornik statey (Proceedings of international scientific symposium “Miner's week 2010” : collection of articles). Moscow State Mining University, January 2010. 4 p.
7. Arsentev V. A., Gorlovskiy S. I., Ustinov I. D. Kompleksnoe deystvie flotatsionnykh reagentov (Complex effect of flotation reagents). Moscow : Nedra, 1992. 160 p.
8. Yushina T. I. Razrabotka metoda flotatsionnogo razdeleniya sulfidov svintsa i medi s primeneniem reagentov gruppy azinov : avtoreferat dissertatsii … (Development of method of flotation separation of lead and copper sulphides with application of azine group reagents : thesis of inauguration of Dissertation ...). Moscow, 1997. 21 p.