Tools of a Metallurgist

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Evaluating Copper Flotation Cleaner Circuit Grade – Recovery Results

To facilitate the presentation of the modal data, the cleaner circuit of this case concentrator was separated into three operations. The first cleaner circuit, which includes the cleaner-scavenger bank is discussed first, this is followed by a discussion of the operation of the column cleaner circuit. Finally, an analysis of the overall cleaner circuit operation is … Read more

Calculate a Mill’s Operating Work Index

Use this online formula to calculate a Ball Mill, Rod Mill or SAG Mill Operating Work Index. Based on Fred Bond’s work you can estimate the energy used into your grinding circuit. This is the most accurate and informative method, but much of the data necessary for its application is not yet available. A) Total … Read more

Mass Balancing Extended to Machine Learning

The methodology MIDAS Tech International has been developing has migrated from mass balancing to information theory to machine learning. It appears these methods are the only ones available that allow unit processes to be modelled in detail; entirely from the data. This is ideal for a simulation system that can be used for both data-driven … Read more

Circulating Load Calculation Formula

Here is a formula that allows you to calculate the circulating load ratio around a ball mill and hydrocylone as part of a grinding circuit. For example your ball mill is in closed circuit with a set of cyclones. The grinding mill receives crushed ore feed. The pulp densities around your cyclone are sampled and known … Read more

Metallurgist Handbook – Reference Tables & Charts

 Metallurgist Handbook – Reference Tables & Charts International atomic weights Absolute Viscosity of water Thermometric Conversions Thermometric Conversions Fahrenheit to Centrigrade Absorption of Gases By Water Table of Pressure Boiling Point of Water at Various Pressures Stages in Decomposition of Pyrites Value of Lime as an Electrolyte Solubility of Lime in Water at Different Temperatures … Read more

Online Formula & Calculator Disclaimer

Nothing contained in the calculators, equations or other information on this website constitutes advice. Access to the calculators, equations and other information is donated for academic and research purposes only, and must only be used by qualified comminution/process engineers. Comminution/Process engineers considering the calculators, equations and other information must use their own professional judgement, knowledge … Read more

How to Select a Rainwater Catch Basin

You need to know how much water will be draining to your catch basin in order to select the right catch basin for your project. Catch basins are an effective way to collect surface water that is draining to one specific area like a low spot in the yard or below a rain gutter downspout. … Read more