Determination of optimal pressure parameters for the system of pulp microaeration dispersants in column flotation

The article presents the results of experiments intended to beneficiate gold-bearing mineral raw materials by column flotation with the use of micro aeration of pulp through a dispersant system. The influence of the pressure level in the pressure system of dispersants within the range from 202,65 to 1013,25 KPa was studied during the experiments. It was found that the parameter of 607,95 KPa enables to achieve the optimal balance of the precious metal mass yield and the content in the concentrate, with a final gold recovery of 87 %

SOCIAL AND POLITICAL INTEGRITY AND POLITICAL AND LEGAL ORDER

Abstract: The article analyzes the essence and main characteristics of political integrity and political order. It presents various interpretations and research positions related to the justification of the latter. The theoretical and methodological basis of the work is domestic and foreign studies of political scientists, sociologists and lawyers. The paper uses ideological (phenomenological, sociocultural, systemic, etc.), general scientific (analysis, synthesis, analogy, etc.), as well as concrete scientific (historical-political, the method of political modeling) approaches and methods. The authors argue that in the context of the interrelationship of state, legal, political integrity and order, it is necessary to use the conceptof “political and legal order” as more adequate, since the latter allows to comprehensively present and investigate the institutional and normative organization of society, based on political, legal norms, ideas, values and ideals, that ensures the orderliness of relations and reflects the specifics and patterns of development of a particular socio-cultural system.Keywords: power, state, law, politics, order, political process, society, social dynamic

Intensification of copper leaching from heaps using biological oxidation

The article presents the results of experiments intended to leach copper from ore heaps of complex mineral composition biochemically. The processing of such heaps is complicated due to the presence of oxidized copper minerals among significant fragments of sulfide minerals and iron-calcium silicates. This factor does not allow to perform standard sulfuric acid leaching effectively without the use of additional oxidation catalysts, or to apply beneficiation methods for that kind of raw materials. Use of A. Ferrooxidans bacteria adapted to the composition of the copper dump, as a bio-catalytic agent, significantly accelerates the leaching process and increases the copper recovery degree into the productive solution

MANAGEMENT DEVELOPMENT TO POWERS OF THE PRODUCTION CAPITAL FUND OF THE BUILDING ENTERPRISE

In article are considered problems of the estimation and management development to powers of the main fund of the building enterprise. It is conducted critical analysis of the ways of the estimation to powers of the main fund, offered different author, and on this base is improved way, connected with choice leading link. The offered methods, allowing adjust the structure of the main fund of the building enterprise with provision for available beside it building technology

Intensification of copper leaching from heaps using biological oxidation

The article presents the results of experiments intended to leach copper from ore heaps of complex mineral composition biochemically. The processing of such heaps is complicated due to the presence of oxidized copper minerals among significant fragments of sulfide minerals and iron-calcium silicates. This factor does not allow to perform standard sulfuric acid leaching effectively without the use of additional oxidation catalysts, or to apply beneficiation methods for that kind of raw materials. Use of A. Ferrooxidans bacteria adapted to the composition of the copper dump, as a bio-catalytic agent, significantly accelerates the leaching process and increases the copper recovery degree into the productive solution