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A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.6 + 0.008x, measured in thousands of dollars per ton. Start-up costs are $100,000. a. What is the cost of extracting the first …
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A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.8 + 0.008x, measured thousands of dollars per ton. start-up costs are $130,000. what is the cost of extracting the first 50 tons of copper? what is the cost of extracting the next 50 tons?
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Let's look at the process involved in extracting copper from its ore. Step 1: The first step in the extraction process is mining. Copper ore must be mined using open-pit or underground mining methods. After the copper ore is mined out of the ground, it is crushed into a powdery consistency and then mixed with water. This mixture, known as ...
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This flowchart made of machinery icons explains or expresses in simple but clear terms the step of the Copper Mining and Copper Extraction Process. Starting from either open-pit or …
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In this investigation, a laboratory-scale study to extract copper (Cu) from its oxide ore (0.425–11.2 mm particle size) was conducted using varied sulfuric acid (H2SO4) concentrations (0.05–0.5 M) as a lixiviant. Through a physicochemical and mineralogical analysis of real field ore samples from the Almalyk mine heap site (Tashkent, …
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A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is . 0.8 + 0.008x, measured in thousands of dollars per ton. Start-up costs are $130,000. a) Set up an expression involving an integral that can be used to find the cost (in thousand $) of extracting the first 50 tons of copper.
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Moreover, copper extraction is said to be profitable when the selling price of copper is above $6 per kg ($6,000/tonne) and unprofitable when the price falls below $3,000/tonne. At a current price of $7,162 per tonne (3.24/lb or $7.16/kg), copper miners should all be booking profits. ... Since 1994, copper mining supply has doubled while …
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A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.5 + 0.008x, measured in thousands of dollars per ton. Start-up costs are $140,000. What is the cost of extracting the first 50 tons of copper? $ What is the cost of extracting the next 50 tons? $
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A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.9 + 0.008x, measured in thousands of dollars per ton. Start-up costs are $130,000.Set up an expression involving an integral that can be used to find the cost (in thousand $) of extracting the first 50 tons of copper.
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1. A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.5 + 0.008 x, measured in thousands of dollars per ton. Start-up costs are $140, 000. a. SET UP an expression involving an integral that can be used to find the cost (in thousand $) of extracting the first 50 tons of copper. b.
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A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.7 + 0.008x, measured in thousands of dollars per ton. Start-up costs are $130,000. Set up an expression involving an integral that can be used to find the cost (in thousand $) of extracting the first 50 tons of copper.
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The primary methods used to extract minerals from the ground are: Underground miningSurface (open pit) miningPlacer mining The location and shape of the deposit, strength of the rock, ore grade, mining costs, and current market price of the commodity are some of the determining factors for selecting which mining method to use.Higher …
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Find step-by-step Calculus solutions and your answer to the following textbook question: A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.6 + 0.008x, measured in thousands of dollars per ton. Start-up costs are $100,000. What is the cost of extracting the first 50 tons of copper? What about the …
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After successfully extracting copper from an intact sulfidic porphyry Cu ore drill core sample, the group is confident the idea will also work in the field, not only for copper but also for a wide ...
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Copper can be extracted from non-sulfide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a …
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cost of extracting T tons of ore is : C = f (T) View the full answer. Step 2. Unlock. Answer. Unlock. Previous question Next question. Transcribed image text: The cost of extracting T tons of orc from a copper mine is C = f(T) dollar. What does it mean to say that f' (2000) = 100? Not the question you're looking for? Post any question and get ...
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The search for copper during this early period led to the discovery and working of deposits of native copper. Sometime after 6000 bce the discovery was made that the metal could be melted in the campfire and cast into the desired shape. Then followed the discovery of the relation of metallic copper to copper-bearing rock and the possibility of reducing ores to …
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The mixed oxide-sulfide copper‑nickel ore used in this study was provided by Jinchuan Group Ltd. (JNMC), China. The ore powders obtained by grinding the crushed ore in a ball mill at 100 r/min for 15 min were sieved into six narrow size ranges: 75–80 μm, 80–96 μm, 96–109 μm, 109–120 μm, 120–150 μm and 150–180 μm, and the main …
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mining, process of extracting useful minerals from the surface of the Earth, including the seas.A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure. (One organic substance, coal, is often discussed as a mineral as …
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Extraction in open-pit mines begins with typical hard-rock mining methods, like blasting. Ore-bearing rock is loaded 200 to 300 tonnes at a time by enormous loaders and shovels into mammoth haul ...
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What is the cost of extracting the first 50 tons of copper? What about the next 50 tons? A mining company estimates that the marginal cost of extracting $ x $ tons of copper ore from a mine is $ 0.6 + 0.008x $, measured in thousands of dollars per ton. Start-up costs are $100,000. What is the cost of extracting the first 50 tons of copper?
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Most current copper extraction processes burn sulfide minerals in air, which produces sulfur dioxide, a harmful air pollutant that has to be captured and reprocessed, but the new method produces elemental sulfur, which can be safely reused, for example, in fertilizers. The researchers also used electrolysis to produce rhenium and molybdenum ...
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A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.8 +0.008x, measured in thousands of dollars per ton. Start-up costs are $140,000. What is the cost of extracting the first 50 tons of copper? $ 190000 What is the cost of extracting the next 50 tons? $ 210400 .
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The extraction of copper and iron increases linearly as the leaching temperature increases from 20 to 60 °C. Copper extraction was 80% after 2 h at 60 °C with the addition of the oxidant ferric sulfate at a concentration of 5 g/L Fe 3+ ions. The highest degree of copper leaching was observed at a stock consistency of 33%.
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Copper ore is extracted using two basic methods of mining - open pit or underground mining.
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The search for copper during this early period led to the discovery and working of deposits of native copper. Sometime after 6000 bce the discovery was made that the metal could be melted in the campfire and …
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Except for bauxite, iron and manganese, which are listed as ores (gross weight), metal production is reported as metal content (net weight). In order to construct a homogeneous measure of extracted crude ore that is used as an input from the natural environment to the economic system, we applied country- and commodity-specific …
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Copper can be extracted from non-sulfide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a …
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The process of extracting copper for its ore is quite complex and varied. It largely depends on the type of ore in question, particularly whether it is a sulfide or oxide type. Copper mining has typically been performed through open-pit mining, where stepped benches are dug deeper and deeper into the ground over time. To remove the …
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A two-stage mineral leaching and metal recovery protocol was developed to extract copper from tailings generated as waste materials in two mines currently …
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