valuation method of mine tailing
valuation method of mine tailing; Valuation (finance)In finance, valuation is the process of determining the present value (PV) of an assetValuations can be done on assets (for example, investments in marketable securities such as stocks, options, business enterprises, or intangible assets such as patents and trademarks) or on liabilities (eg, bonds issued by a company) Valuations are This study describes the life cycle cost (LCC) analysis and environmental valuation for several coal mine tailings management scenarios The economic feasibility of six different options was assessed using the Net Present Value (NPV) and BenefitCost Analysis (BCA) methodsLife cycle cost estimation and environmental valuation of Mining Valuation –NPV Corporate adjustments are made at the end Each mining asset valued independently Expressed as P/NAV NPV of corporate overhead Debt Cash equivalents Minority interest / equity investments The value of all mining assetsMining Financial Model Valuationvaluation method of mine tailing OVERVIEW OF PGM PROCESSINGOutput •Run of mine Ore (Merensky/ UG2/Platreef, 36 4E g/t) •Composite concentrate ( 4E g/t) •Tailings (to tailings dams) •Chromite recovery •Converter matte (>2,800 4E g/t) •Sulphuric acid •Autocatalysts •Jewellery •Other Industrial products (eg chemicals, electronics, fuel cells) Mining Crushing Milling Froth valuation method of mine tailing paraguayrestaurantdeValues should be derived using more than one valuation method whenever possible The method applied depends on the nature of the valuation, the development status of the mineral property and the extent and reliability of available information There are three generally accepted valuation approaches in the mining industry:Valuation of Mineral Exploration Properties – AMC Consultants
Valuation of Mineral Exploration Properties – AMC Consultants
Given the subjectivity of the valuation methods used for exploration properties, it is not usually sensible to produce values more detailed than the nearest $01 million for significant projects or than the nearest $10,000 for lesser projects The final valuation is an experiencebased judgement based on weighting of the individual values It should always be expressed as a range in order to The value of the mine in this case is obtained by computing (27) using the higher operational costs opex2 and subtracting the higher capital expenditure capex2 from the result In particular, we assume that dry processing mines have no risk of tailings dam failure The expected value of the mine in this case is V 0 d r y = $ 6 49 B (+ 20 %)Accounting for tailings dam failures in the valuation of This study describes the life cycle cost (LCC) analysis and environmental valuation for several coal mine tailings management scenarios The economic feasibility of six different options was assessed using the Net Present Value (NPV) and BenefitCost Analysis (BCA) methods These options were belt press (OPT 1), tailings paste (OPT 2), thickened tailings (OPT 3), and OPT 1 with technology Life cycle cost estimation and environmental valuation of negative impacts, or value 'tradeoffs', must be understood, transparent and easily communicated This paper describes how the general methodology of "Multiple Accounts Analysis" may be adapted, specifically for tailings site selection, during mine planning and the project approval processA Multiple Accounts Analysis for Tailings Site SelectionFigure 1: Valuation methods depending on the stage of development on the mineral property Source: Redrafted from InfoMine MVENMYN Appraised Value Method (Cost Approach) The Appraised Value Method is based on the premise that the real value of an Exploration asset lies in its potential for the existence and discovery of an economic mineral deposit The Appraised Value Method assumes that Methods for valuating earlystage mineral projects CSA
Independent Tailings Review Board (ITRB)Presentation
Both methods require integrating tailings planning into mine planning This has not been common practice in the industry to date, as the Mount Polley case has shown, and the synergies to be achieved are mostly unexplored Apart from this, surface storage using filtered tailings technology is a prime candidate for BAT”tailings in impoundments or freestanding piles, backfilling underground mine workings and openpits, subaqueous disposal, and the most common method, the disposal of tailings slurry in impoundments Modern tailings impoundments are engineered structures for permanently disposing of the finegrained waste from mining and milling operations At Technical Report: Design and Evaluation of Tailings Dams Mintails, a mine tailings processor, has developed new technology to process 350,000 tons of slimes from its extensive tailings resources It expects to recover 58 kg of gold per month, and has enough slimes to last until 2025 Goldfields has also developed new technology for a tailings retreatment plant, and processes 12,000 tons of current tailings and 88,000 tons of old tailings a month From Tailings to Treasure? Miners Make Money Reprocessing Mine tailings' size and composition depends on the mining method For hardrock metal mines, tailings are usually a very fine mud or powder, which is left over after ore is crushed and valuable minerals are extracted from it Tailings may also contain chemicals used for mineral extraction Tailings are distinct from “waste rock”, which is the nonore rock which miners move and discard as Mine Tailings Deposition Methods of Tailings Figure 1: Single point discharge of tailings (Subaerial technique) (© Jon Engels) Introduction For conventional storage the tailings are generally discharged from spigots/outfalls located along the embankment(s) of the facility For surface thickened and paste storage the tailings are generally discharged from a central location either through risers or from Tailingsfo Deposition Methods of Tailings
How to generate value from tailings with reprocessing to
A standard method of reprocessing involves dragging tailings from an existing dam back to the concentrator and using required mineral processing solutions to liberate the valuable metals The The value of the mine in this case is obtained by computing (27) using the higher operational costs opex2 and subtracting the higher capital expenditure capex2 from the result In particular, we assume that dry processing mines have no risk of tailings dam failure The expected value of the mine in this case is V 0 d r y = $ 6 49 B (+ 20 %)Accounting for tailings dam failures in the valuation of M aximizing value from waste W ith progressive technology and a more environment friendly vision, mining companies have been exploring effective waste management methods to handle mine tailings Driven by both stored mineral value and reclamation, reprocessing offers an interesting proposition for longterm tailings managementCreating value from waste Canadian Mining The aim of this work is to show a methodological proposal for the analysis of soil intervention values in mine tailings in order to determine the intervention requirements in the commune of Andacollo in northern Chile The purpose of this analysis is to guide the intervention policies of both private and public organizations The evaluation method is based on the Dutch legislationEvaluation of soil intervention values in mine tailings in negative impacts, or value 'tradeoffs', must be understood, transparent and easily communicated This paper describes how the general methodology of "Multiple Accounts Analysis" may be adapted, specifically for tailings site selection, during mine planning and the project approval processA Multiple Accounts Analysis for Tailings Site Selection
Independent Tailings Review Board (ITRB)Presentation
Both methods require integrating tailings planning into mine planning This has not been common practice in the industry to date, as the Mount Polley case has shown, and the synergies to be achieved are mostly unexplored Apart from this, surface storage using filtered tailings technology is a prime candidate for BAT”a new mine opening without legacy tailings or legacy pit development Actual site conditions could favour some methods over others and the use of two or more processes over the mine life Given the differences between virtual mine and actual mine conditions, only sitespecific plans can evaluate the constraints and opportunities against the actual process risk factors inherent in the different Fluid Fine Tailings Management MethodsPaste tailings is a modification to the conventional methods of disposal of tailings (pond storage) Conventional tailings slurries are composed of a low percent of solids and relatively high water content (normally ranging from 20% to 60% solids for most hard rock mining) and when deposited into the tailings pond the solids and liquids separate In paste tailings the percent of solids in the Tailings WikipediaEither method of measuring tailing can be used – unless it is defined in a method or standard – but note the methods are not interchangeable Acceptable Tailing Since most columns exhibit some peak tailing, what is considered an acceptable A s value? A new column is considered acceptable if the A s value is 09 12 (09 indicates slight fronting) In practical terms, an A s value below What is Peak Tailing? Chromatography TodayDeposition Methods of Tailings Figure 1: Single point discharge of tailings (Subaerial technique) (© Jon Engels) Introduction For conventional storage the tailings are generally discharged from spigots/outfalls located along the embankment(s) of the facility For surface thickened and paste storage the tailings are generally discharged from a central location either through risers or from Tailingsfo Deposition Methods of Tailings
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