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Patent US8388729

... solution containing free ammonia, producing a pregnant leach ... solution containing free ammonia at atmospheric ... matte was leached at ambient ......

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Atmospheric acid leaching of nickel

Atmospheric acid leaching of nickel-copper matte from Impala Platinum Refineries The pre-leach stage in the second process route alternative, described above, is the ......

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METHOD FOR AMMONIACAL LEACHING

Jul 22, 2010 · METHOD FOR AMMONIACAL LEACHING ... solution containing free ammonia at atmospheric ... consume a portion of the ammonia in the leach ......

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atmospheric ammonia leach matte

atmospheric ammonia leach matte. cyanide leach tank south africa; acid leach chrome ore mines in turkey; carbon in leach process; cip gold leach ppt;...

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Impacts of Ammonia

Impacts of Ammonia. ... When in gaseous form, ammonia has a short atmospheric lifetime of about 24 ... or will be removed from the soil in runoff or leaching ......

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Parametric Effects on Leaching Behavior of Nickel

Parametric Effects on Leaching Behavior of Nickel-Copper Matte in Ammonia ... Atmospheric leaching of matte at the port nickel refinery....

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Selective leaching of a high

Selective leaching of high iron cobalt matte in sulfuric acid at atmospheric pressure is being reported. The matte assaying 4.55%Co, 13.58%Ni, 3.72%Cu and 53.6%...

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Nickel ore processing flow chart

Nickel ore processing flow chart. ... by a flow diagram of atmospheric heap leach of ... laterite ammonia leach process is presented in ......

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Atmospheric acid leaching of nickel

The leaching behaviour of nickel-copper matte in an acidic-copper sulphate solution during the repulping stage at Impala Platinum Refineries has been studied....

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Nitrogen cycle

The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into various chemical forms as it circulates among the atmosphere and terrestrial and ......

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Nickel Smelting and Refining

Nickel Smelting and Refining ... to the furnace to produce a matte for processing. ... Ammonia leach is usually...

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atmospheric leaching pachuca equipment

leaching of manganese ore; atmospheric ammonia leach matte; equipment for leaching by sulphuric acid ... a 18-hour leach at atmospheric pressure and 185O F ......

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NICKEL MATTE CHLORIDE LEACHING

atmospheric pressure, ... NICKEL MATTE CHLORIDE LEACHING An innovative new process for nickel ... to an ammonia solution, ......

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Copper Smelting

Copper Smelting Industry Description ... ammonia, or wood. The fire-refined copper is cast into an- ... operate at atmospheric pressure or as pressure leach circuits....

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What is Ammonia?

What is Ammonia? Ammonia (NH3) is a compound composed of one nitrogen (N) and three hydrogen (H) molecules. It is usually found as a gas and is known for its pungent ......

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Nickel Smelting and Refining

Nickel Smelting and Refining ... Ammonia leach is usually ... Various processes are used to refine nickel matte....

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Atmospheric acid leaching of nickel

Atmospheric acid leaching of nickel-copper matte from Impala Platinum Refineries on ResearchGate, the professional network for scientists....

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Pressure oxidative leaching of lead

Read "Pressure oxidative leaching of lead-containing copper matte" on DeepDyve - Instant access to the journals you need!...

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A fundamental evaluation of the atmospheric pre

A fundamental evaluation of the atmospheric pre-leaching section of the nickel-copper matte treatment process...

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Parametric Effects on Leaching Behavior of Nickel

(2013). Parametric Effects on Leaching Behavior of Nickel-Copper Matte in Ammonia. Particulate Science and Technology: Vol. 31, No. 4, pp. 319-325. doi: 10.1080 ......

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atmospheric leaching pachuca equipment

atmospheric ammonia leach matte; equipment for leaching by sulphuric acid tantalite ... laterite or other nickel oxide ore to an atmospheric heap leach process 10. ......

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Method for ammoniacal leaching

In accordance with the present invention there is provided a method for leaching one or more target metals from an ore, the method comprising the method steps of ......

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Atmospheric oxidative and non

SYNOPSIS. The atmospheric leaching of copper-bearing matte by acidic ferric chloride solution was studied at the laboratory scale. The aim was to achieve maximum ......

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Cobalt extraction techniques

Cobalt extraction techniques ... roasting or flash smelting to produce matte from which nickel and cobalt ... ore can use sulfuric acid or ammonia leach ......

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US Patent # 4,094,754. Leaching of Ni

Leaching of Ni-Cu-Fe-S matte Abstract. Nickel is selectively leached efficiently and rapidly from Ni-Cu-Fe-S matte under oxidizing conditions at ordinary pressure by ......

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