secondary copper ore recovery

secondary copper ore recovery

Mar 01, 2017 Initial tests were conducted to optimise chalcopyrite and secondary copper sulphide mineral recovery using only SIBX and this showed that a dosage of 30 g/t SIBX gave the highest Cu recovery (24.7%) at a grade of 14.5%. This dosage was then used in subsequent tests.

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Secondary recovery of a copper heap leach Dale F. Rucker, hydroGEOPHYSICS, Inc., USA Shawn Calendine, hydroGEOPHYSICS, Inc., USA Abstract Structural uniformity, that is, the degree to which hydraulic properties are homogenized over space, will affect the degree to which ore is effectively leached. Nonuniform ore has been shown to form preferential

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Dec 31, 2019 The recovery of precious metals from the WEEE is currently performed in copper-making circuits including copper smelters, converters and secondary (black) copper smelters. Black copper smelting is typically implemented for low-grade copper scrap, which may be highly oxidized and includes a wide range of impurities, typically lead, tin, zinc ...

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Copper values are efficiently recovered from a copper ore, including secondary sulfides, by first crushing the ore to a particle size P-80 of about 1 to 2 inches, then grinding the so crushed ore to a particle size P-80 of between Tyler 4 mesh and 20 mesh, and then classifying the ground ore into a fines fraction of less than 65 mesh and one or more coarse fractions of more than 65 mesh.

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Secondary copper production emits the least pollutions. ... for the recovery of copper and iron from malachite ore. For the dissolution of copper and iron, H2SO4 was employed as well as H2O2 as an ...

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Dithiophosphate Aqueos (MC-208) Has excellent selective properties for copper ore flotation and an excellent collector for gold, silver and copper. Collector Blend (MC-347E) Partially water soluble and widely used in copper sulphide ore flotation, particularly when a secondary mineralization of molybdenum or silver exists.

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Mar 02, 2021 For example, a copper ore grade of 1% means that in 100 tons of the ore, we have 1 ton of copper. If the copper ore contains 40 tons of calcite gangue, we can also say 40% of calcite in the ore. A gold deposit with a grade equal to 5 g/t (gram per ton) means that in one ton of the ore, we have 5 …

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Copper Cobalt Africa, ... The recovery of other valuable metals such as gold and silver can be carried out economically. ... Ferric sulphate leaching of secondary sulphide ores has been successfully commercialised at the Cobre Las Cruces (CLC) and Sepon copper plants.

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Jul 25, 2013 But for the majority of porphyry ores, this is not practiced. The objective of this paper is to address Reasons 2-6 proposed above, and provide a clear picture of the pros- and cons- for the use of hydroxamates for oxide copper recovery. Reason 1 is certainly beyond the scope of this paper.

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Copper ore sold or treated. method of treatment. and recoverable metala ... fom of recovery. short tons ... Production of secondary copper and copper-alloy products, short tons.. ..... Composition of secondary copper-alloy production, short tons ..... Production of copper sulfate, short tom ...

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Copper ores. An ore is a rock containing enough valuable mineral to make it worth extracting. In the case of copper, it is worth extracting when there is about 2 kg of copper per 1,000 kg of ore (0.2%). Copper minerals are found in over one hundred varieties, although only a few have been worked for copper on a large scale.

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IN SECONDARY COPPER SMELTING AND ALLOYING PROCESSa Furnace And Charge Type Control Equipment Total Particulate EMISSION FACTOR RATING PM-10b EMISSION FACTOR RATING Leadc EMISSION FACTOR RATING Cupola Scrap iron (SCC 3-04-002-13) Insulated copper wire (SCC 3-04-002-11) Scrap copper and brass (SCC 3-04-002-12) None None ESPd None ESPd 0.002 120 5 ...

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Nov 09, 2020 As with oxide ores, SX-EW tech is used to recover copper from a pregnant leach solution. Secondary sulfides, which are formed by supergene secondary enrichment, are resistant to sulfuric leaching ...

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Aug 11, 2020 Copper is an important nonferrous metal that has been used for thousands of years due to its versatile and highly applicable properties.1 The increasing demand for copper and depletion of high-grade ores have prompted intensive investigation on metal recovery from low-grade ores and secondary copper-bearing resources.2 For low-grade ores or secondary resources, such as copper …

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The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance.

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May 16, 2016 Even though these minerals occur in relatively small amounts they can often be economically recovered as by-products for the expense of mining, crushing, and grinding is absorbed in recovery of the copper. A Copper Flotation Flowsheet

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The results obtained showed that increasing solids (from 10 to 20%) was bad for bacteria. The highest copper recovery was equivalent to 69.91%, obtained after 21 days at 35 degrees using the Acidi Thiobacillus Ferrooxidans bacteria and a K9 medium with a pulp density of 10% and pH 1.5.

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