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The Analysis of Fe Behavior in Zinc Pressure Leaching

Zinc sulfide concentrate mainly contains zinc and iron, of which the iron content is about 5–15%. During Zn hydrometallurgy, the iron in the concentrate is one of the key concerns in the selection of Zn metallurgical process as it will determine the length of the process, and will directly affect the zinc leaching rate and the comprehensive recovery methods and effect of the …

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(PDF) Recovery of zinc from leach residues with minimum iron

Hydrometallurgy 40: 37–49. Buban KR, Collins MJ, and Masters IM (1999) Iron control in zinc pressure leach processes. Journal of Metallurgy 51: 23–25. Downloaded from wmr.sagepub at UNIV OF SOUTH FLORIDA on October 27, 2011 Alizadeh et al. 171 Dutrizac JE, Monhemius AJ (1986) Iron Control in Hydrometallurgy.

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Research on Behavior of Iron in the Zinc Sulfide …

Minerals 2020, 10, 224 2 of 16 proceeds, the dissolved FeSO4 is then oxidized to Fe2(SO4)3.Since the processing temperatures of the pressure leaching process are generally high, the ferric iron is ...

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Recovery of zinc from leach residues with minimum iron …

Buban KR, Collins MJ, and Masters IM ( 1999) Iron control in zinc pressure leach processes. Journal of Metallurgy 51: 23-25. Google Scholar. Dutrizac JE, Monhemius AJ ( 1986) Iron Control in ... Dutrizac JE, Harris GB (eds.) Iron Control and Disposal . Canada: The Canadian Institute of Mining, Metallurgy and Petroleum, Montreal, 135 ...

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Zinc Pressure Leaching Technology at HudBay Minerals, …

Sherritt provided the zinc pressure leach process technology and know how for the HudBay Minerals ... and iron residue. In 1993, this application of the Sherritt Zinc Pressure Leach ... Canada T8L 4K7 T +780 992 8000 E info@sherritt . Title: Microsoft Word - 2020 Case Study -Zinc Pressure Leaching at Hudbay Flin Flon Manitoba KL Feb 27 ...

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Iron control in zinc pressure leach processes | ScienceGate

Formation of Massive Gunningite-Jarosite Scale in an Industrial Zinc Pressure Leach Autoclave: A Characterization Study Canadian Metallurgical Quarterly 10.1179/cmq.2009.48.2.99

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Operation of the Sherritt Zinc Pressure Leach Process at the …

The Sherritt Zinc Pressure Leach Process has been applied successfully at the HBMS zinc plant in Flin Flon, Manitoba since 1993. The HBMS plant was the first commercial application of the two ...

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Research on Behavior of Iron in the Zinc Sulfide Pressure Leaching Process

Agitation leaching is a promising technology in hydrometallurgy for treating copper–cobalt oxide ores. In this work, the behavior of oxide ores containing around 2.3% Cu and 0.3% Co received ...

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Mathematical modeling of the zinc pressure leach …

the shrinking core modeF 9,1~ with surface reaction control- ling. For most sulfide minerals, the rate of shrinkage (in ... are oxidized by the ferric ion (Fe3+). Thus, in the zinc pressure leaching process, the rate of fer- rous to ferric oxidation and the ratio of ferrous to ferric ... that in the zinc pressure leach, iron is removed from ...

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The Behavior of Zinc and Iron in Neutralized Residue During Pressure …

In two-stage zinc pressure leaching process, zinc calcine is used to neutralize the acid pressure leaching solution. The residue usually contains a certain amount of zinc, iron, and other elements.

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Commercial Applications of the Sherritt Zinc Pressure Leach Process …

Four iron precipitation processes have been commercialized: the jarosite process; the goethite process; the paragoethite process; and the hematite process. The paper describes the commercial applications of the Sherritt Zinc Pressure Leach Process and its integration with the commercially applied iron precipitation processes.

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Recovery of zinc from leach residues with minimum iron …

Leaching was performed to recover zinc from a zinc leach residue which contained 9.87% Zn and 4.93% Fe. ... Dutrizac GB (eds.) Iron Control and Disposal. Canada: The Canadian Institute of Mining, Metallurgy and Petroleum, Montreal, 627-642. ... ( 1999) Iron control in zinc pressure leach processes. Journal of Metallurgy 51: 23-25. Google ...

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Hydrometallurgical Zinc Plants and Processes

or goethite. As a result of the precise control of iron oxidation and the acidity of the process solution, iron precipitation is carried out either during or after the leaching process, depending on the needs of the customer. Zinc calcine leaching Zinc calcine produced in roasting contains zinc oxide and zinc ferrite.

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The Behavior of Zinc and Iron in Neutralized Residue During …

In two-stage zinc pressure leaching process, zinc calcine is used to neutralize the acid pressure leaching solution. The residue usually contains a certain amount of zinc, iron, …

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Influence of Low Iron Inputs on Impurity Co-Precipitation in …

In the zinc plant, zinc concentrates are roasted to produce calcine, which is then processed in the leaching circuit for zinc recovery. Calcine is first dissolved at pH <2.0. This is …

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Control of Iron in the Hudson Bay Zinc Pressure Leach Plant

A key feature of the successful leaching operation is the presence of iron in solution, which facilitates oxygen transfer in the autoclaves and enables rapid oxidation of zinc sulphide …

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Iron control in zinc pressure leach processes

The integration of Dynatec's zinc pressure leach process with existing roast-leach-electrowin plants employing various methods of iron rejection is briefly described in this article, along with …

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Iron Control in Hydrometallurgy

leaching of coppe r or zinc sulphides proceeds via a two-step process: the oxidation of the sulphide, leaching of the metal with the production of ferrous sulphate, followed by the …

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Iron control in zinc pressure leach processes | JOM

The integration of Dynatec's zinc pressure leach process with existing roast-leach-electrowin plants employing various methods of iron rejection is briefly described in this article, along with …

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Recovery of zinc from leach residues with minimum iron …

Leaching was performed to recover zinc from a zinc leach residue which contained 9.87% Zn and 4.93% Fe. During sulfuric acid leaching, Fe was dissolved as well as Zn which can reduce the Zn extract...

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Effects of Various Precipitants on Iron Removal from a Zinc …

Autoclave leaching of zinc concentrate (Sphalerite) is an environmentally friendly process compared to roasting, which discharges pollutants into the atmosphere. Due to the amount of iron in the final product, a study is proposed to evaluate different reagents for eliminating iron from the autoclave outcome, minimizing Zn losses. The colloid formation, zinc losses, iron removal, …

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Iron control in zinc pressure leach processes | ScienceGate

The oxidation of ferrous sulphate by molecular oxygen under zinc pressure-leach conditions

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(PDF) Recovery of zinc from leach residues with …

Hydrometallurgy 40: 37–49. Buban KR, Collins MJ, and Masters IM (1999) Iron control in zinc pressure leach processes. Journal of Metallurgy 51: 23–25. Downloaded from wmr.sagepub at UNIV OF SOUTH FLORIDA on …

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Starting up the Sherritt Zinc Pressure Leach Process at …

The first commercial application of the Sherritt two-stage zinc pressure leach process commenced operation at the Hudson Bay Mining and Smelting Company metallurgical complex in Flin Flon, Manitoba (Canada), on July 2, 1993. The start-up was relatively smooth, and full design rate for the plant was achieved by September 12, 1993. Since that time, zinc …

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Research on Behavior of Iron in the Zinc Sulfide Pressure Leaching Process

Dissolved iron exerts significant effects on mineral leaching, impurity removal, and solution purification in the zinc hydrometallurgy process. To date, iron oxidation and migration behaviors are yet to be fully understood and further research on effective regulation mechanisms of iron is required. In this paper, zinc sulfide concentrate was used as the research object. The …

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Iron Control In Pressure Hydrometallurgy

The Goethite Process (70-90°C), Jarosite Process (90-100°C) and Hematite Process (T>185°C) produce solids that have high iron content and can be easily extracted from the hydrometallurgical ...

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Zinc pressure leaching at HBMS

2. Process chemistry In the zinc pressure leach process, zinc concentrate is acid leached in an autoclave at 145 to 150 and in an oxygen enriched atmosphere with a total pressure of 1100 kPa gauge. The concentrate is oxidized by ferric iron generated in the leach to produce a zinc sulphate solution and elemental sulphur.

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Control of Iron in the Hudson Bay Zinc Pressure Leach Plant

The first commercial application of the Dynatec two-stage zinc pressure leach process commenced operation at the metallurgical complex of Hudson Bay Mining and Smelting Co., Limited in Flin Flon, Manitoba in 1993. A key feature of the successful leaching operation is the presence of iron in solution, which facilitates oxygen transfer in the autoclaves and enables …

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An Overview of Iron Precipitation in Hydrometallurgy

The jarosite process is firmly established in the zinc industry, and the technique also has been used for iron control in cobalt processing (Aird, Celmer and May, 1980; Harris, Monette and Stanley, 1982), in the leaching of platinum-rich nickel-copper mattes (Plasket and Dunn, 1986), in the processing of maganese ores (Teixeira and Tavares ...

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Integration of Sherritt Zinc Pressure Leach Process at Ruhr …

The third commercial application of the Sherritt Zinc Pressure Leach Process commenced operation at the Ruhr-Zink refinery in March 1991. ... Hematite — the solution to a disposal problem — an example from the zinc industry, in Iron Control in Hydrometallurgy, ed. J.E. Dutrizac and A ... Sherritt, Inc., Fort Saskatchewan, Canada. M. J ...