This case study shows how, in today’s market climate, taking a constructive approach to addressing reagent input supply problems at the Process Plant of the Ghanaian Mine, Tarkwa, is the secret to maintaining higher efficiency and competitive advantage. In practise, the cases examined revealed the presence of reagent control models used at the Tarkwa Mine in Ghana, as well as the lack of advance warnings about reagent inventory control maps, quality control models, and lime consumption control methods. Furthermore, inventory management was limited in the minimum and maximum model applications to accommodate rapid changes in consumption rates. Clearly, the paper addresses a lack of constructive interventions in the field of model-specific limits for corrective behaviour. The future warning signal of slope analysis is largely determined by the focus of the given reference variables. As a consequence, convergence of opposing target variables denotes a deteriorating future, while divergence denotes a more promising future. Conversely, convergence of similar focus variables implies a better future, while divergence indicates a deteriorating future. The paper recommended using slope analysis as one of several complementary methods for enhancing positive assessment of all reagent control models and gaining a competitive advantage in the company’s endeavour. More research into the cost and consumption variances analysis model as a method for enhancing constructive reagent control at the Ghanaian Mine, Tarkwa, Mineral Processing Plant operations is recommended in this paper.

Author (s) Details

James Obiri-Yeboah
Metallurgical Manager, Akroma Gold Company Limited, Nkawkaw, Ghana.

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