IVS Joint Venture, Saint-Petersburg, Russia:

M. A. Arustamyan, Chief Operating Officer, Candidate of Engineering Sciences, rivs@rivs.ru
L. M. Solovyova, Deputy Director of Production Research Department
S. V. Naumov, Project Manager

The article discusses key features of the modern approach to industrial construction and modernization project management in terms of renovation of Nikolaevskaya Processing Plant (NPP), Kazakhmys Corporation. The new practice developed within the project for processing of ore of current production included new operations of flotation circuit, new reagent regime based on advanced reagents and new equipment of IVS Joint Venture manufacture in all flotation cycles and pulp preparation processes, which allowed considerable improvement of complex ore processing performance. In the period of implementation of NPP renovation project, IVS Joint Venture specialists accomplished supervision of the technology, which enabled detecting violation of the quality standards of ore fed for treatment in the form of reduced contents of almost all valuable metals. For instance, the content of zinc of initial ore reduced from 6.11 to 3.84% (at standard quality level of 5.07%), lead — from 1.66 to 0.73% (1.39%) and gold — from 1.27 to 0.34 g/t (0.8 g/t). In connection with this, the management company developed and issued new charts of production procedures concerning consumption of reagents per each process circuit for ore with different contents of valuable components.

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