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International Biodeterioration & Biodegradation

Review A review of sulfide minerals microbially assisted reactors Akrama Mahmoud a, *, Pierre C!ezac a, Andrew F.A. Hoadley b, François Contamine a, Patrick DHugues c a ...

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  • Improving the process performance of gold cyanide leaching ...

    Improving the process performance of gold cyanide leaching ...

    Cyanide leaching of gold is carried out in very large mechanically stirred tank reactors. The reactor size can be up to 5000 m3. A typical agitator configuration is two downward- pumping hydrofoil impellers, which requires a low mixing power input and results in low shear rates inside the reactor.

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  • Products_The Nile Co., Ltd.

    Products_The Nile Co., Ltd.

    Double impellers Non-cyanide gold agent Flotation separator Magnetic Separator Disc vacuum filter Plate and Frame Filter Press Jigging Machine Shaking table Centrifugal Gold Concentrator Adsorption and Elution Column Chute ore washer Water cyclone separator Other Equipment Mobile Trommel Gold Wash Plant

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  • 93% Cu Recovery in a stirred tank bioleach amenability ...

    93% Cu Recovery in a stirred tank bioleach amenability ...

     · copper dissolution profiles Six - 1 metre columns have been initiated at Mintek on -4.7mm, -3.35mm and -2.36mm mineralized material and the copper recovery is progressing ahead of plan.

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  • Continuous Stirred Tank Reactors - Visual Encyclopedia of ...

    Continuous Stirred Tank Reactors - Visual Encyclopedia of ...

    Continuous reactors CSTRs are open systems, where material is free to enter or exit the system, that operate on a steady-state basis, where the conditions in the reactor dont change with time. Reactants are continuously introduced into the reactor, while products are continuously removed.

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  • Modeling, simulation, and optimization of bacterial ...

    Modeling, simulation, and optimization of bacterial ...

    sets bacterial apart from other biochemical reac-tors, because few other bacterial processes include the re-action of particulate material. Mathematical models of of particulate material in continuous - reactors have received much attention Crundwell, 1994a, 1994b Crundwell and Bryson, 1992 Dixon, 1996 Sepul-

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  • Biohydrometallurgy - Grinding Solutions Ltd

    Biohydrometallurgy - Grinding Solutions Ltd

    Concentrate / reactors Grinding Solutions have the ability to assess the amenability of a sample to biological . Typically, this involves batch tests, usually of up to two weeks duration depending on concentrate type and temperature in small …

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  • Microbial Cell Factories BioMed Central

    Microbial Cell Factories BioMed Central

    4.2. processes processes highly aerated, continuous-flow reactors placed in series are used to treat the mineral. Finely milled mineral concentrate or ore is added to the first together with inorganic nutrients in the form of ammonia- and phosphate-containing fertilizers. The min-

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  • Elevating Type Stirred Tank - machineto.com

    Elevating Type Stirred Tank - machineto.com

    XBT elevating type , this kind of equipment is used for lifting the ore slurry to make up the Lack of loop height difference of slurry in beneficiation process, its suction distance is about 0.2m, and Lifting height is about 1m, also take the stirring action.

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  • Heap and tank leaching of copper and nickel from a ...

    Heap and tank leaching of copper and nickel from a ...

    Heap and of copper and nickel from a Platreef flotation concentrate using ammoniacal solutions. ... 2 CO 3, buffered in the pH range 9–10, was used as base case lixiviant in column and batch reactor tests, around which the effects of total ammonia concentration and operating temperature were explored further. At ...

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