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Bacterial leaching of ores and other materials

Bacterial leaching of ores and other materials R Nveke Institut fr Mikrobiologie Technische Universitt Braunschweig Fed Rep Germany Summary In nature sulfidic ores are decayed by weathering under the influence of oxygen and water Get price

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Mo

neutral to basic water molybdenite weathers to stable detrital minerals so that Mo anomalies are recognisable in stream sediment for many kilometres downstream from the source illustrating the use of Mo as a pathfinder element in geochemical exploration for gold under certain conditions and for porphyry copper-gold mineralisation Get price

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RU2403981C1

FIELD process engineering SUBSTANCE invention relates to enrichment of mineral resources and can be used for flotation of copper-molybdenum copper-nickel and other bimetal ores Method comprises grinding ore and open-cycle bulk flotation of two and more metals in alkaline medium produced by line and re-cleaning of reground crude concentrate Get price

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Molybdenum Mining

Molybdenum is contained in various minerals but only molybdenite (MoS 2) is suitable for the industrial production of marketable molybdenum products Molybdenite can occur as the sole mineralization in an ore body but is often associated with the sulphide minerals of other metals notably copper Get price

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Mo

neutral to basic water molybdenite weathers to stable detrital minerals so that Mo anomalies are recognisable in stream sediment for many kilometres downstream from the source illustrating the use of Mo as a pathfinder element in geochemical exploration for gold under certain conditions and for porphyry copper-gold mineralisation Get price

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Bacterial leaching of ores and other materials

Bacterial leaching of ores and other materials R Nveke Institut fr Mikrobiologie Technische Universitt Braunschweig Fed Rep Germany Summary In nature sulfidic ores are decayed by weathering under the influence of oxygen and water Get price

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Ore enrichment

A mechanical process of copper ore enrichment is essential for effective smelting The concentration level obtained at the enrichment stage makes the copper material fit for further processing at the smelter This processing is required due to the fact that the copper ore deposits mined by KGHM in Poland contain on average only 1 52% of copper Get price

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OPTIMIZATION OF FLOTATION PARAMETERS FOR

behavior of low-grade porphyry copper-molybdenum ore obtained from the Kirklareli region of Turkey The ore sample used in this study contained 0 18% Mo and 0 15% Cu In this study the effect of several parameters such as particle size pH types and amounts of collector depressant and frother on the flotation were investigated Get price

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what do you mean by enrichment of ores ?

24/07/2007Best Answer Enrichment of ores means increasing the metal (or non-metal) content of an ore by removing as much of the minerals in the ore that do not contain the desired substance This can be done by several means including screening gravity Get price

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RU2403981C1

FIELD process engineering SUBSTANCE invention relates to enrichment of mineral resources and can be used for flotation of copper-molybdenum copper-nickel and other bimetal ores Method comprises grinding ore and open-cycle bulk flotation of two and more metals in alkaline medium produced by line and re-cleaning of reground crude concentrate Get price

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Molybdenum ore beneficiation methods

If higher Molybdenum plant processed ore grade ore (0 2% to 0 3%) enrichment ratio is 133 to 155 times its original design featured a total of seven times and a plant Jinduicheng processed raw ore grade of about 0 1% molybdenum enrichment ratio of 430 to 520 the total number of selected 12 times Get price

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(PDF) Enrichment of Molybdenum and Fluorite by

However for molybdenum production from ores containing molybdenum in the first step enrichment is required Therefore the flotation method was applied Molybdenum usually occurs as molybdenite in nature and enrichment of molybdenum is much easier in comparison to other ores with high yield Get price

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Molybdenum Chemical Element

In the United States molybdenum ores are found primarily in Alaska Colorado Idaho Nevada New Mexico and Utah Isotopes Seven naturally occurring isotopes of molybdenum exist molybdenum-92 molybdenum-94 molybdenum-95 molybdenum-96 molybdenum-97 molybdenum-98 and molybdenum-100 Isotopes are two or more forms of an element Get price

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How Ore Deposits Are Formed?

The enrichment process of these metals follows physical principles that are similar to the extraction of deep geothermal energy by hydraulic fracturing of the rock Porphyry-type ore deposits rank among the world's most important sources of copper molybdenum and gold Get price

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Economic geology

10/01/2017For sulphide copper and silver ores iron oxides and certain uranium ore deposits the supergene enrichment process is of economic significance 22 The oxidation of sulphur and iron in one mole of pyrite (FeS2) (or marcasite) produces four moles of acidity Get price

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what is meant by enrichment of ore

Ore enrichment factors (wt % metal in ore/wt % metal in source rock) are calculated from analyses of ore and source rocks assuming that seawater-derived brines leached ore materials from underlying rocks and precipitated them at the point of brine discharge onto the seafloor Get price

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Enrichment of Molybdenum and Fluorite by Flotation of

The molybdenum and fluorite were obtained in different phases with the flotation of fluorite ore containing molybdenum obtained from Karaamagaradere-Keban-Elazig district in Turkey It has been found that the original ore contains 1 08 % Mo 0 05 %Cu 1 20 % Pb 1 12 % Zn and 12 0 % F It was determined that molybdenum and fluorite could not be enriched in different phases with satisfactory Get price

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what is meant by enrichment of ore

Ore enrichment factors (wt % metal in ore/wt % metal in source rock) are calculated from analyses of ore and source rocks assuming that seawater-derived brines leached ore materials from underlying rocks and precipitated them at the point of brine discharge onto the seafloor Get price

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Stockwork Molybdenum Deposits in the Western

Paragenetically molybdenum occurs early in a mineralizing stage in ores that are commonly near the center of igneous activity The stockwork ores and some other classes of molybdenum deposits occur in igneoustectonic provinces where intrusives are localized by crossing fractures lineaments or domes Get price

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Economic geology

10/01/2017For sulphide copper and silver ores iron oxides and certain uranium ore deposits the supergene enrichment process is of economic significance 22 The oxidation of sulphur and iron in one mole of pyrite (FeS2) (or marcasite) produces four moles of acidity Get price

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Molybdenum Chemical Element

In the United States molybdenum ores are found primarily in Alaska Colorado Idaho Nevada New Mexico and Utah Isotopes Seven naturally occurring isotopes of molybdenum exist molybdenum-92 molybdenum-94 molybdenum-95 molybdenum-96 molybdenum-97 molybdenum-98 and molybdenum-100 Isotopes are two or more forms of an element Get price

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Modeling the Formation of Porphyry

21/12/2012Porphyry-copper ore systems the source of much of the world's copper and molybdenum form when metal-bearing fluids are expelled from shallow degassing magmas On page 1613 of this issue Weis et al ( 1 ) demonstrate that self-organizing processes focus metal deposition Specifically their simulation studies indicate that ores develop as consequences of dynamic variations in rock Get price

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what do you mean by enrichment of ores ?

24/07/2007Best Answer Enrichment of ores means increasing the metal (or non-metal) content of an ore by removing as much of the minerals in the ore that do not contain the desired substance This can be done by several means including screening gravity Get price

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what is meant by enrichment of ore

Ore enrichment factors (wt % metal in ore/wt % metal in source rock) are calculated from analyses of ore and source rocks assuming that seawater-derived brines leached ore materials from underlying rocks and precipitated them at the point of brine discharge onto the seafloor Get price

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Enrichment of U Mo V Ni and Ti from asphaltite ash

Enrichment of U Mo V Ni and Ti from asphaltite ash The uranium ore from Jaduguda mine in India is one such deposit which needs to be looked into from this point of view Apart from uranium it also contains valuable minerals such as sulfide minerals of copper molybdenum and nickel as well asGet price

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enrichment process of copper ore

Mining and enrichment | KGHM Corporate Website Geological resources of copper ore according to state on 31122015 are above 1 7 billion Mg of average grade of Cu 1 84% and Ag around 52 5 g/Mg The amount of metals in geological resources is over 31 million Mg Cu and over 90 Get price

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Enrichment of Molybdenum and Fluorite by Flotation of

The molybdenum and fluorite were obtained in different phases with the flotation of fluorite ore containing molybdenum obtained from Karaamagaradere-Keban-Elazig district in Turkey It has been found that the original ore contains 1 08 % Mo 0 05 %Cu 1 20 % Pb 1 12 % Zn and 12 0 % F It was determined that molybdenum and fluorite could not be enriched in different phases with satisfactory Get price

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Modeling the Formation of Porphyry

21/12/2012Porphyry-copper ore systems the source of much of the world's copper and molybdenum form when metal-bearing fluids are expelled from shallow degassing magmas On page 1613 of this issue Weis et al ( 1 ) demonstrate that self-organizing processes focus metal deposition Specifically their simulation studies indicate that ores develop as consequences of dynamic variations in rock Get price

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Geochemical behavior of Mo and precious metals during

Supergene oxidation-leaching and secondary sulfide enrichment in the SarCheshmeh porphyry Cu-Mo deposit generated a supergene profile to depths of 20 to 80 meters with oxide ore reserve about 22 Mt 1 08% Cu and sulfides ore reserve~106Mt 1 27% Cu Geochemical distribution and behavior of trace metals associated with Cu namely Mo Au and Ag in the supergene profile of the SarCheshmeh were Get price

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Method of flotation enrichment of sulphidic copper

SUBSTANCE invention relates to enrichment of mineral resources and can be used for flotation of copper-molybdenum copper-nickel and other bimetal ores Method comprises grinding ore and open-cycle bulk flotation of two and more metals in alkaline medium produced by line and re-cleaning of reground crude concentrate Get price

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Molybdenum Mining

Molybdenum is contained in various minerals but only molybdenite (MoS 2) is suitable for the industrial production of marketable molybdenum products Molybdenite can occur as the sole mineralization in an ore body but is often associated with the sulphide minerals of other metals notably copper Get price

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aerofloat 25 flotation reagent for copper molybdenum ores

SUBSTANCE invention relates to enrichment of mineral resources and can be used for flotation of copper molybdenum copper nickel and other bimetal ores Method comprises grinding ore and open cycle bulk flotation of two and more metals in alkaline medium produced Get price

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Geochemical behavior of Mo and precious metals during

Supergene oxidation-leaching and secondary sulfide enrichment in the SarCheshmeh porphyry Cu-Mo deposit generated a supergene profile to depths of 20 to 80 meters with oxide ore reserve about 22 Mt 1 08% Cu and sulfides ore reserve~106Mt 1 27% Cu Geochemical distribution and behavior of trace metals associated with Cu namely Mo Au and Ag in the supergene profile of the SarCheshmeh were Get price

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molybdenum flotation selectivity

Molybdenum Ore Processing by Flotation The flotation tailings from this circuit are the final copper concentrates which go to thickening and filtering as shown The rougher molybdenum concentrates also go to a separate thickener ahead of conditioning and prior to subsequent enrichment Get price

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