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The investment necessary to start a mine is of the order of 10's to 100's of millions of dollars. In order for the investment to be profitable, the potential product in the ground must be present in adequate quantities and quality to justify a decision to invest. Mining and processing systems used to extract the products must then operate so as to produce revenue to offset the planned investment and to provide an acceptable profit. Clearly, all technological and financial decisions regarding planned production are built on an understanding of the mineral assets available. Thus, the estimation of grade and location of material in the ground (in situ resources) must be known with an acceptable degree of confidence. This is especially true of certain large, low grade deposits for which grade is only slightly above minimum profitable levels, and for some precious metal deposits where only a small percentage of mineralized ground can be mined at a profit. Mining profits are strongly leveraged to product price and to realized grade of material mined. A small difference between planned (estimated) and realized production grade, or a small change in metal price, can have a large impact on mine profitability. The three undertakings, ore estimation, mine planning and grade control, are complementary in an efficient mining operation and are natural progressions one to another. The integration of these three endeavors is important because the grade control system must balance with the ore reserve as well as with the final products of the operating plant, and both estimation and grade control are influenced by planned operational procedures. If this balance is not achieved then the original investment may be in jeopardy. Reappraisals of mineral inventories can be necessary many times both prior to and during the life of a mine. Resource/reserve estimation procedures commonly are considered in two categories, empirical and geostatistical. This course is confined to the principal empirical methods of estimation. Authors Alastair J. Sinclair   Duration: 18 Hours Access: 90 Days Category: Exploration Level: Specialize Version Date: June 22, 2006 ​Need to train a team? Whether you're looking for a customized training program or developing a team, we have enterprise solutions to fit your needs. Learn More Read more

Economic Geology 101 is a course for beginners in exploration geology, people requiring a basic understanding of ore deposits, students, and anyone who is inquisitive about mineral deposits and how these form. The course provides an overview of the three major rock types (igneous, sedimentary, and metamorphic rocks), and introduces the geologic processes that form or influence ore deposits. In this course, you will learn about ore deposits that are typical for various metals, including abundant metals (iron, manganese, titanium) as well as scarce base (nickel, copper, lead, zinc) and precious (platinum group elements, gold and silver) metals. World-renowned deposits are described and illustrated with numerous figures and photographs. This course is based on the Geological Framework for the Business of Exploration and Mining, authored by David Groves, produced by Market Motion Media. Authors David Groves (Author)   Duration: 9 Hours Access: 90 Days Category: Exploration Level: Introduce Version Date: January 16, 2016 ​Need to train a team? Whether you're looking for a customized training program or developing a team, we have enterprise solutions to fit your needs. Learn More   Read more

Concentration and Purification of Leach Solutions is the third in a series of four hydrometallurgy courses by the author, written for university students as well as practicing engineers and metallurgists. The Hydrometallurgy series covers the elementary theoretical basis of solution chemistry, the engineering aspects, and the technical applications for a large variety of raw materials, e.g. metals, oxides, sulfides, phosphates, silicates, and others. It also covers the purification-concentration steps such as adsorption on activated charcoal, ion exchange, and solvent extraction. Finally, the general aspects of precipitation from aqueous solutions are covered with numerous examples. The series is characterized by clear and simplified flowsheets, numerous chemical equations written mainly in ionic form, many illustrations for equipment and plants, and finally a lucid style presenting the facts point by point as concisely as possible. Hydrometallurgy 3 - Concentration and Purification of Leach Solutions covers the processes of activated charcoal adsorption, ion exchange and solvent extraction and how they relate to the concentration and purification of leach solutions. Authors Fathi Habashi   Duration: 15 hours Access: 90 Days Category: Mineral Processing Level: Specialize Version Date: June 24, 2008   Need to train a team? Whether you're looking for a customized training program or developing a team, we have enterprise solutions to fit your needs. Learn More Read more

Leaching Processes is the second in a series of four hydrometallurgy courses by the author, written for university students as well as practicing engineers and metallurgists. The Hydrometallurgy series covers the elementary theoretical basis of solution chemistry, the engineering aspects, and the technical applications for a large variety of raw materials, e.g. metals, oxides, sulfides, phosphates, silicates, and others. It also covers the purification-concentration steps such as adsorption on activated charcoal, ion exchange, and solvent extraction. Finally, the general aspects of precipitation from aqueous solutions are covered with numerous examples. The series is characterized by clear and simplified flowsheets, numerous chemical equations written mainly in ionic form, many illustrations for equipment and plants, and finally a lucid style presenting the facts point by point as concisely as possible. Hydrometallurgy 2 - Leaching Processes covers the leaching processes used for hydrometallurgical treatment of mineral ores, concentrates and metals. It covers treatment of the ore types and metals susceptible to hydrometallurgical treatment, from precious metals to oxides, hydroxides, sulfides, phosphates, silicates and others. Authors Fathi Habashi   Duration: 18 Hours Access: 90 Days Category: Mineral Processing Level: Specialize Version Date: May 14, 2008 Need to train a team? Whether you're looking for a customized training program or developing a team, we have enterprise solutions to fit your needs. Learn More Read more

Introduction to Leaching is the first in a series of four hydrometallurgy courses by the author, written for university students as well as practicing engineers and metallurgists. The Hydrometallurgy series covers the elementary theoretical basis of solution chemistry, the engineering aspects, and the technical applications for a large variety of raw materials, e.g. metals, oxides, sulfides, phosphates, silicates, and others. It also covers the purification-concentration steps such as adsorption on activated charcoal, ion exchange, and solvent extraction. Finally, the general aspects of precipitation from aqueous solutions are covered with numerous examples. The series is characterized by clear and simplified flowsheets, numerous chemical equations written mainly in ionic form, many illustrations for equipment and plants, and finally a lucid style presenting the facts point by point as concisely as possible. Hydrometallurgy 1 - Introduction to Leaching covers solution chemistry, leaching mechanisms and processes, leaching methods and equipment, engineering aspects and microorganisms. Solution chemistry introduces the structure of minerals and water, elementary concepts of acids and bases, oxidation and reduction, complex formation and precipitation. These concepts are included because many metallurgy students do not have this chemistry background. The rest of the course is devoted to the general aspects of leaching of ores and concentrates, the reagents used, methods and equipment, the engineering aspects, and the role of microorganisms. Authors Fathi Habashi   Duration: 18 Hours Access: 90 Days Category: Mineral Processing Level: Specialize Version Date: March 5, 2008   Need to train a team? Whether you're looking for a customized training program or developing a team, we have enterprise solutions to fit your needs. Learn More Read more

In this course, we discuss the water and chemical mass balance of a mine site and the many components or facilities that go to make up a mine. There are as many water and chemical mass balances as there are mines. And there are as many mass balances as there are facilities on a mine. In this course we focus on the fundamental theories and methods and illustrate these with examples that are intended to assist and guide in compiling water and chemical mass balances for a mine and its various facilities. This course is one of a series of related courses, others in the series include: Groundwater in Mining Surface Water Management at Mines Objectives Reasons for undertaking a facility or site water balance study may include: evaluating strategies for optimum use of limited water supplies; establishing procedures for limiting site discharge and complying with discharge requirements; estimating the demands on water treatment plants, holding ponds, evaporation ponds, or wetlands. Authors Jack Caldwell P.E., MS.(Eng.), LLB   Duration 14 Hours Access 90 Days Category Geotechnics Level Specialize Version Date  December 19, 2013   ​Need to train a team? Whether you're looking for a customized training program or developing a team, we have enterprise solutions to fit your needs. Learn More   Read more