The process design of gold leaching and carboninpulp circuits. Two main types of material balances are commonly made. Metallurgical accounting formulas concentration and. Allowance for material change in business z automatic download of new versions. The process design of gold leaching and carbon in pulp circuits 14 januaryfebruary 1999 the journal of the south african institute of mining and metallurgy figure 2the carbon in pulp cip process figure 1computeraided process engineering cape. Materials and energy balance online course video lectures. This section provides a list of importantenvironmental regulations and supporting documents that may apply to the gold and copper mining and mineral processing industries.
As your strategic partner or independent technical consultant, we can help you improve your existing met accounting system, or establish a completely new. Preamble materials balance water balance dilution ratio illustration conclusion references key words. Mass balance the cornerstone of chemical oceanography the chemical distributions on the earth and in the ocean reflect transport and transformation processes, many of which are cyclic. This list does not include every environmental regulation that potentiallyapplies to these two sectors, but only the major regulations. Therefore, this study will focus on the method for increasing the manganese fraction in low grade manganese ore by utilizing one. Principles of extractive metallurgy rakes h kumar email. Mineral processing design and operations 2nd edition. An introduction, second edition, helps further understanding of the various methods commonly used in mineral beneficiation and concentration processes. Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body. Securing supply chains, materials and technologies. Mass balancing and data reconciliation mass balancing is a common practice in metallurgy. The goal is to produce granular material which meets a specific set of requirements in terms of material composition and physical characteristics especially granulation. Mining and mineral processing full notes ebook free. Secondary data calculations based on mass balance around the equipment must then be shown.
Apr 04, 2012 materials and energy balance in metallurgical processes by prof. These will all be scheduled in weeks 7 and 12, on mondays, and tuesdays in the semester 2. Lecture 6 mass balance questions and answers 1 only one of the following is the essential approximation made when assuming steady state. Ratio of concentration can be thought of as the number of tons of feed required to produce 1 ton of concentrate. Mass balance calculations around mineral processing units. Dont need to grind in moving bed related processing i. Practical integrated metallurgical accounting solutions. The mineral beneficiation involves separation of gangue minerals from ore. Ironmaking, reduction of iron oxide, material balance introduction the blast furnace is essentially a continuous counter. Offers 35 free metallurgy tutorials, exercises and examples for students in mineral processing of future metallurgist. The purpose of a material balancing is to mathematically examine the known flow parameters to solve for the unknown flow parameters. Microsoft word introduction to minerals processing full course notes. The oxygen in mineral processing plays an important role in extractions of minerals from ares such as gold and silver processing.
The liberation phenomenon is of paramount importance in mineral processing science. The mass balance of a circuit is needed for several reasons. Many other steps in the mining process are identified in the vision but are not addressed in this document. In this work, a complete procedure based on image analysis and stereology is proposed for the. Mineral processing plant design university of technology. Energy balance of a reheating furnace, rotary kiln,etc, integration of energy balance. Practical integrated metallurgical accounting solutions for. These are removed by thermal regeneration of the eluted carbon, typically in a rotary kiln at temperatures of 650750c. Material balance in froth flotation using microsoft excel solver. Mod01 lec10 introduction to mineral beneficiation youtube. Mining is the extraction of valuable minerals or other geological materials from the earth, from an. Water and energy balances in mineral processing plants osvaldo bascur and ales soudek. Material balance, ball mill, hydro cyclone, flotation. Sgs minerals services t3 sgs 905 0920 optimizing your metallurgical processing operation sgs is a global technical leader in the field of metallurgical accounting.
Mod01 lec01 introduction physics of materials duration. Mineral processing is the first step in the solid mineral extractive process. Models in mineral processing have been difficult to develop because of the complexity of the unit operations that are used in virtually all mineral recovery systems. Pdf this presentation outlines the mining, mineral processing and extractive metallurgy. Preamble an important aspect of any mineral processing study is an analysis of how material is distributed whenever streams split and combine. Mod01 lec12 exercises in mineral processing youtube.
For a flotation circuit, material balance calculations define an engineering problem where flow parameters between unit operations are partly known. The shape and dimensions of the lifters control the tumbling action of the media. The mineral is physically separated from the remaining pulp material and is removed for further processing. The more details you give on your situation, the better we can help you. Ore dressing is a process of mechanically separating the grains of ore minerals from the gangue minerals, to produce a concentrate.
Lecture notes materials processing materials science and. The key concepts are best learned by problem solving. Lesson 2 circuit mass balancing mining mill operator. At some metallic mineral processing plants, material is stored in enclosed bins between process operations. Materials balance in mineral processing and faq video. The process design of gold leaching and carboninpulp circuits contaminants. These formulas are here in the hope that they would prove of value to others in the ore dressing industry. Mod01 lec11 materials balance in mineral processing and faq.
Lecture 11 clay minerals powerpoint ppt presentation lecture 10. If it is not possible to apply heat direct to the material to be dried, rotary dryers of the indirect heating design can be furnished so that the heated gases will not come in direct contact with the material. This knowledge is necessary when a flow sheet is being designed and is also essential when making studies of operating plants. A typical set of data which can be processed by the proposed method contains flowrates measurement, particlesize analyses, global chemical analyses and, simultaneously, chemical analyses within particlesize classes. The process design of gold leaching and carboninpulp. Local labor costs often dictate what material can be best used economically in a. Even though the air bubbles often break at this point, the mineral remains on the surface of the froth. Material balance in mineral processing contents nptel. Chief among these difficulties is the fact that the feed material is invariably a particulate solid. The air bubble and mineral particle rise through the pulp to the surface of the froth or foam that is present on the flotation cell. Materials balance in mineral processing and faq video lecture. Leave your phone number if you would like us to call you. Geometallurgy, comminution, sizing, classification in air and water, gravity concentration, flotation. The students should know the principles for designing mineral processing circuits, as well as the basic principles for dimensioning and scaling.
Principles for process design will be given along with examples of processes for various raw materials. Cain and paterson 1986 find a significant materials using bias in technological change in nine of. In order to be trained on using a systematic procedure to solve material balance problems, you are advised to. Mineral, renewable and secondary raw material processing current engineering challenges. Materials balance in iron making introduction illustration key words. Course minerals processing, advanced course tgb4300 ntnu. Water and energy balances in mineral processing plants. Mining and mineral processing full notes ebook free download pdf.
Find materials for this course in the pages linked along the left. The following formulas were developed during a long association not only with design and construction, but also with the operation of ore dressing plants. The course describes the mineral processing circuits as a system based on combining the fundamental unit operations. Mining and mineral processing full notes ebook free download pdf this list does not include every environmental regulation that potentiallyapplies to these two sectors, but only the major regulations. Mineral processing plant design general procedure for plant design o process design. Lecture notes materials processing materials science. This paper proposes an extension to an already available mass balance algorithm for mineral processing data. Metallic and nonmetallic ores, coals, and secondary resources.
The basic principles of scaling and projecting circuits are adressed. Mineral dressing orebeneficiation the first process most ores undergo after they leave the mine is mineral dressing processing, also called ore preparation, milling, and ore dressing or ore beneficiation. Materials and energy balance in metallurgical processes by prof. Materials and energy balance covers the basic chemical principles that relate thermodynamics to chemical metallurgy the goal of a metallurgical engineer is to keep a metallurgical production process running as efficiently as possible charge calculations, fuel calculations and estimation of the product yield are primary. The general principle of material balance calculations is to put and. Preamble materials and heat balance of metal extraction processes constitute a very important exercise to know the flow of materials and energy and to identify the amount of wastes produced and energy consumed. Cbe2124, levicky 1 chapter 4 material balances note. Ii mineral comminution and separation systems toshio inoue encyclopedia of life support systems eolss discussion is also extended to the treatment of the solid wastes and wastewater occurring from the mineral processing plants, and also to the environmental problems associated. Basic principles and calculations in chemical engineering.
The flowchart is fully labeled if the composition and flowrate or amount of each process stream can be expressed in terms of the labeled quantities. Material balances for processes involving reaction. Intro to minerals proc notes lecture 1 welcome lecture 2 ore preparation crushing. Introduction to mineral processing chevron phillips chemical. The course aims to give the students an understanding of how the basic mineral processing unit operation can be combined into specific processes. Of the different types of dryers that there are the most common is the rotary drum dryerkiln, this type of drier is common not only in the mining industry but you will find them in fertilizer plants, cement plants, and peat hogs to name but a few the theories behind these machines are very simple, heat an air space up, and then tumble the material to be dried through this space until it is. Material balance in mineral processing contents nptel,in this lecture. Whenever possible to apply heat direct to the material to be dried, rotary dryers of the direct heating design are used.
Mod01 lec 11 materials balance in mineral processing and faq. Ore is an aggregate of minerals and contains valuable and gangue minerals. Pdf circulating load calculation in mineral processing closed,pdf a. The ratio, k, for a separation can be obtained directly from the product weights or from the product assays if the weights are not known. Thus, material balances are often compared to the balancing of current accounts. In many mineral processing applications, the focus is to maintain maximum. The particles with attached air bubbles are then carried to.
Regeneration is carried out in a steam atmosphere to minimize carbon degradation due to oxidation. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. They are used in industry to calculate mass flow rates of different streams entering or leaving chemical or physical processes. Set up of material balance problems in mineral processing unit operations, set up and illustration of energy balances in various unit processes like calcinations, sintering, roasting, smelting, converting, refining, gasification, carbonization, case studies. Application of theory to practice is explained at each stage, helping operators understand associated implications in each unit process. Mod01 lec11 materials balance in mineral processing and. Material in process often cannot be weighed without a disturbance of continuity. Mod01 lec04 lecture 04 mineral benefication techniques. In this lecture basics of material balance in mineral processing is discussed.
This energy is required to cause grinding of the material in the mill. Be sure to read carefully through all the examples in this chapter. The tumbling action is difficult to describe accurately but certain regions in the mill can be characterized in terms of the basic pattern of motion of material in the mill. Depending on the operations at any particular mining or mineral processing facility. The air bubble and mineral particles rise through the pulp to the surface of the froth. Mineral processing has a long history well covered in a publication by habashi 18 which points out bthe ancient egyptians knew already that it would be easier to melt an earth rich in gold.
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