An approach on dilution and ore recovery / loss calculations in minearal reserve estimations at the Cayeli mine, Turkey

Download
2006
Soyer, Nihat
Dilution and ore recovery/loss have an important role in calculation of mineral reserves. Each percent increase in dilution and decrease in recovery negatively affects economic value of the reserve. These parameters are mainly controlled by the quality of the mine design and stoping practice. This study provides an approach developed for dilution and recovery/ore loss calculations. The contribution of mine design software (MineSight) and the recent survey technique called Cavity Monitoring System (CMS) were presented in this study. The purpose was to compare the new approach with the old system where the calculations had been done according to some assumptions and to optimize mineral reserve estimation process. Results indicate that the new approach used in reserve estimation process gives ~1.6% closer tonnages to the actual numbers and the grades are both ~1.6% closer to the actual values numbers when compared with the old system.

Suggestions

Modeling the effects of variable coal properties on methane production during enhanced coalbed methane recovery
Balan, Hüseyin Onur; Gümrah, Fevzi; Department of Petroleum and Natural Gas Engineering (2008)
Most of the coal properties depend on carbon content and vitrinite reflectance, which are rank dependent parameters. In this study, a new approach was followed by constructing a simulation input database with rank-dependent coal properties published in the literature which are namely cleat spacing, coal porosity, density, and parameters related to strength of coal, shrinkage, swelling, and sorption. Simulations related to enhanced coalbed methane (ECBM) recovery, which is the displacement of adsorbed CH4 in...
A decision support system for electricity generation investment
Alpagut, Merih Ayşe; Güyagüler, Tevfik; Department of Mining Engineering (2010)
In the recent years, ongoing debates in the mineral sector has shown that efficient use of natural resources is of vital importance as the use of minerals is essential for modern living. Especially, in the context of sustainable development, it is required that mineral resources should be exploited to maximize the contribution to the well being of current generation without depriving the potential for future generations to meet their own needs. The aim of this thesis is to develop a decision support system ...
A computer simulator for ball mill grinding
Yeşilay, Yasemin; Hoşten, Çetin; Department of Mining Engineering (2004)
Ball mill grinding is an important operation in the processing of most minerals, in that it may be used to produce particles of the required size and shape, to liberate minerals from each other for concentration purposes, and to increase the powder surface area. Grinding of minerals is probably the most energy consuming task and optimization of this operation has vital importance in processing plant operations to achieve the lowest operating costs. Predicting the complete product size distribution, mill spe...
Developing a coal transportation cost estimation model for Turkish coal enterprises
Demir, Ebru; Karpuz, Celal; Department of Mining Engineering (2009)
Transportation cost is an important item in total operating cost of an open pit mining operations. In some projects, the transportation cost may reach to 60 % of total operating cost. Turkish Coal Enterprises (TKİ) delivers the demanded coal to all cities of Turkey within the context of Prime Ministry Social Solidarity and Aid Fund. The project duration, demanded coal amount whether the coal is needed as packed or unpacked form are determined by local governors. In this study, a model is developed through s...
Computer modeling of the initial cavern for Beypazari Trona ore on the basis of leaching rates, insoluble contents and thickness of trona layer
Tunçay Saygun, İlkay; Arol, Ali İhsan; Department of Mining Engineering (2008)
Trona ore located in Beypazarı is extracted by solution mining method with well pair connected by directional drilling technology. This thesis covers the determination of the dimensions of the initial (vertical) caverns formed in underground by use of a computer modeling (trademark: WinUbro/Poland) on the basis of horizontal and vertical leaching rates. The leaching rates were determined using the trona core samples from the ore deposit. The effect of insoluble content and the thickness of trona layer and s...
Citation Formats
N. Soyer, “An approach on dilution and ore recovery / loss calculations in minearal reserve estimations at the Cayeli mine, Turkey,” M.S. - Master of Science, Middle East Technical University, 2006.