+86 15516432285

skorpion leaching process

skorpion leaching process

SKORPION ZINC: OPTIMISATION AND INNOVATION

2009-8-26  The Skorpion process was developed to treat a complex non-sulphide oxide ore body using atmospheric leaching followed by solvent extraction and electrowinning of zinc (1,2,3) . Sauconite is the largest contributor to the zinc grade with lesser amounts of zinc hydroxides. The gangue minerals are mainly quartz, K-feldspar and muscovite mica. The

Read More
Skorpion Zinc: Optimisation and Innovation Request PDF

The Skorpion process comprises three processing steps, atmospheric leaching in sulphuric acid, zinc solvent extraction and electrowinning to produce special high grade zinc. The major mode of ...

Read More
Review of the hydrometallurgical processing of non-sulfide ...

2014-10-1  The Skorpion process has three processing steps, i.e., direct atmospheric leaching in sulfuric acid, zinc solvent extraction, and electrowinning, to produce special, high-grade zinc. Fig. 3 shows Skorpion's simplified flowsheet of the process. The leaching process is conducted in a series of agitated tanks at about 50 °C. The final pH is ...

Read More
v118n7a3 Investigation of secondary zinc oxides as an ...

2018-9-19  Investigation of secondary zinc oxides as an alternative feed to the Skorpion Zinc process: Part 1 passing 180 μm. The leaching section consists of five agitated tanks in series with a total residence time of 2 hours. Sulphuric acid is used as lixiviant at 50°C and pH 1.8–2 in the final leaching tank. A detailed process description is

Read More
Skorpion zinc solvent extraction: the upset conditions

2015-4-22  Skorpion Zinc became the first mine-to-metal operation to commer-cially apply a purely hydrometallurgical process route to exploit a zinc oxide orebody. The novel technology, known as The Modified ZincexTM Process patented by Tecnicas Reunidas, comprises sulphuric acid atmospheric leaching, zinc solvent extraction (SX)

Read More
EVALUATION OF PROCESSING OPTIONS FOR THE

2021-10-6  direct leaching of the ore, purification with via a solvent extraction process and conventional electrowinning to produce the final zinc product on site. The Skorpion zinc oxide resource will

Read More
SKORPION ZINC SOLVENT EXTRACTION: THE UPSET J.M ...

2009-8-26  Skorpion Zinc is located 25km North West of the small settlement of Rosh Pinah in southern Namibia. Commissioned in early 2003, Skorpion Zinc became the first mine-to- metal operation to commercially apply a purely hydrometallurgical process route to exploit a zinc oxide ore body. The novel technology, known as The Modified ZincexTM

Read More
Stripping conditions to prevent the accumulation of rare ...

2013-1-1  At Skorpion Zinc mine in south-west Namibia, zinc silicate oxide ore is refined through sulfuric acid leaching, neutralisation, clarification, solvent extraction, electrowinning and finally casting of 99.995% Zn metal. ... If the solution is recycled to the leaching process directly from the stripping stage, ...

Read More
Solvent extraction in hydrometallurgy

2021-3-19  Skorpion flowsheets are discussed. Solvent extraction (SX) is a process by which closely related elements or com-pounds in solution are separated based on the differences in partitioning of the species between two immiscible phases. In the SX process the species of interest is typically extracted from an aqueous phase into an organic phase.

Read More
Leaching and solvent extraction purification of zinc from ...

2021-1-15  An integrated hydrometallurgical process was used for the zinc leaching and purification from a zinc ore containing 9.75 wt% zinc. The zinc minerals in the ore were hemimorphite, willemite, and ...

Read More
Skorpion zinc: Optimization and innovation Request PDF

The Skorpion process comprises three processing steps-atmospheric leaching in sulfuric acid, zinc solvent extraction and electrowinning to produce special high grade zinc.

Read More
Review of the hydrometallurgical processing of non-sulfide ...

2014-10-1  The Skorpion process has three processing steps, i.e., direct atmospheric leaching in sulfuric acid, zinc solvent extraction, and electrowinning, to produce special, high-grade zinc. Fig. 3 shows Skorpion's simplified flowsheet of the process. The leaching process is conducted in a series of agitated tanks at about 50 °C. The final pH is ...

Read More
EVALUATION OF PROCESSING OPTIONS FOR THE

2021-10-6  direct leaching of the ore, purification with via a solvent extraction process and conventional electrowinning to produce the final zinc product on site. The Skorpion zinc oxide resource will

Read More
Paper: Disposal of Belt Filtered Tailings – Skorpion Zinc ...

Abstract: Skorpion Zinc Mine comprises an opencast mine and refinery and is located in the south west of Namibia in a very arid area, with desert sand dunes to the west and rugged mountains to the east. The refinery began operating in mid 2003 treating an

Read More
University of Cape Town

2021-1-24  d) a process that does not produce sulphuric acid. Due to the remote location of Skorpion Zinc, transport costs preclude the sulphuric acid from being competitively introduced into the market. The pyrometallurgical processes and electrolytic (Roast-Leach-Electrowinning) process have

Read More
Stripping conditions to prevent the accumulation of rare ...

2013-1-1  At Skorpion Zinc mine in south-west Namibia, zinc silicate oxide ore is refined through sulfuric acid leaching, neutralisation, clarification, solvent extraction, electrowinning and finally casting of 99.995% Zn metal. ... If the solution is recycled to the leaching process directly from the stripping stage, ...

Read More
SKORPION ZINC SOLVENT EXTRACTION: THE UPSET J.M ...

2009-7-18  Skorpion Zinc is located 25km North West of the small settlement of Rosh Pinah in southern Namibia. Commissioned in early 2003, Skorpion Zinc became the first mine-to- metal operation to commercially apply a purely hydrometallurgical process route to exploit a zinc oxide ore body. The novel technology, known as The Modified ZincexTM

Read More
Solvent extraction in hydrometallurgy

2021-3-19  Skorpion flowsheets are discussed. Solvent extraction (SX) is a process by which closely related elements or com-pounds in solution are separated based on the differences in partitioning of the species between two immiscible phases. In the SX process the species of interest is typically extracted from an aqueous phase into an organic phase.

Read More
Major Mines Projects Skorpion Mine

The ore deposit of Skorpion Zinc is unique as it is a primary oxide/silicate/carbonate zinc deposit, which cannot be concentrated by flotation. In this process, mined ore is crushed, homogenised and milled before acid leaching in agitated tanks at the refinery.

Read More
旋流电积在有色冶金中的应用-《有色金属科学与工程》

[34] ZHONG J, WANG G, FAN J L, et al. Optimization of process on electrodeposition of 4N tellurium from alkaline leaching solutions[J]. Hydrometallurgy, 2018, 176:17-25. [35] JIN W, SU J L, CHEN S F, et al. Efficient electrochemical recovery of fine tellurium

Read More
Review of the hydrometallurgical processing of non-sulfide ...

2014-10-1  The Skorpion process has three processing steps, i.e., direct atmospheric leaching in sulfuric acid, zinc solvent extraction, and electrowinning, to produce special, high-grade zinc. Fig. 3 shows Skorpion's simplified flowsheet of the process. The leaching process is conducted in a series of agitated tanks at about 50 °C. The final pH is ...

Read More
EVALUATION OF PROCESSING OPTIONS FOR THE

2021-10-6  direct leaching of the ore, purification with via a solvent extraction process and conventional electrowinning to produce the final zinc product on site. The Skorpion zinc oxide resource will

Read More
Solvent extraction in hydrometallurgy

2021-3-19  Skorpion flowsheets are discussed. Solvent extraction (SX) is a process by which closely related elements or com-pounds in solution are separated based on the differences in partitioning of the species between two immiscible phases. In the SX process the species of interest is typically extracted from an aqueous phase into an organic phase.

Read More
Stripping conditions to prevent the accumulation of rare ...

2013-1-1  At Skorpion Zinc mine in south-west Namibia, zinc silicate oxide ore is refined through sulfuric acid leaching, neutralisation, clarification, solvent extraction, electrowinning and finally casting of 99.995% Zn metal. ... If the solution is recycled to the leaching process directly from the stripping stage, ...

Read More
Major Mines Projects Skorpion Mine

The ore deposit of Skorpion Zinc is unique as it is a primary oxide/silicate/carbonate zinc deposit, which cannot be concentrated by flotation. In this process, mined ore is crushed, homogenised and milled before acid leaching in agitated tanks at the refinery.

Read More
Leaching of secondary zinc oxides using sulphuric acid

Leaching test work showed that it would be possible to obtain recoveries in excess of 93% on the EAF dust, 96.9% from the zinc dross and 98% from the flue dust samples in the Skorpion process, using the normal process conditions of 50°C, a pH of between 1.8 and 1.85 and a

Read More
Skorpion zinc solvent extraction: The upset conditions

2009-11-1  Skorpion Zinc is located 25 km north-west of the small settlement of Rosh Pinah in southern Namibia. Commissioned in early 2003, Skorpion Zinc became the first mine-to-metal operation to commercially apply a purely hydrometallurgical process route to exploit a zinc oxide orebody.

Read More
University of Cape Town

2021-1-24  University of Cape Town. v Further test work on a laboratory scale is also recommended in order to establish the sensitivity of recovery and residence time

Read More
leaching of alumina from bauxite diagram

Leaching of alumina is done by the Bayer's process. The principal ore of aluminium, bauxite, usually contains SiO 2, iron oxides and titanium oxide (TiO 2 ) as impurities. Concentration is carried out by digesting the powdered ore with a concentrated solution of NaOH at Read More

Read More
SOLVENT EXTRACTION IN ZINC PRODUCTION FROM A

2021-3-19  The process flowsheet represents a radical departure from classical zinc refineries in the use of atmospheric leaching of the high-silica oxide ore, followed by solution purification by solvent extraction, and the electrowinning of zinc cathode. Solvent extraction has proven to be very effective in

Read More