The ore deposit of Skorpion Zinc is unique as it is a primary oxide/silicate/carbonate zinc deposit, which cannot be concentrated by flotation. The absence of sulphur offers an advantage in that no sulphur or sulphuric acid disposal is required. The ore is leached directly in sulphuric acid to produce zinc sulphate.
Skorpion came into production in 2003, and was acquired from Anglo American by VZI in 2010/2011. Comprises: Comprising an open pit mine and refinery, Skorpion is the largest integrated zinc operation in Africa and is to VZIs vision for a Southern African zinc complex with international standing. Production:
Skorpion Zinc Anglo Base Metals Sole 2001, Proceedings 6th World Congress Chemical Engineering, Melbourne Fuls et al. 2005, Proceedings ISEC 2005, Beijing Gnoinski et al. 2005, Proceedings Lead Zinc 2005, Osaka Sole et al. 2008, Proceedings ISEC 2008, Tucson, AZ
Skorpion is the largest integrated zinc producer in Africa and the 8th largest zinc mine in the world. It is a conventional open pit oxide mine where the zinc oxide is quarried and then passed through a complex refining and metallurgical process, producing special high grade zinc.
The Skorpion Zinc mining and refinery operations present a different paradigm, because metallurgical processes are not designed around expected variations in the feed grade from the open pit where mining costs are conventionally kept low.
Vedanta Zinc International has recently announced that due to pit failures, which paralyzed a significant portion of the open cast mine, Skorpion Zinc Mine and Refinery in Southern Namibia will be placed in care and maintenance.
Skorpion Zinc is a zinc mine in the ǁKaras Region of southern Namibia, producing Special High Grade zinc. The mine is situated near Rosh Pinah. It was established at a cost of US$450 million by Anglo American in 2003. It is the tenth largest zinc mine in the world, and the largest employer in Rosh Pinah, providing 1,900 jobs. Skorpion is a unique mine in several ways. Firstly, it is a supergene zinc ore body composed of alluviala
Inaugurated in September 2003, the Skorpion zinc operation in south west Namibia comprises an open pit mine, mill and a hydro / electrometallurgical refinery, plus a melting / casting shop. Commercial production started in May 2004, with a target of full rate output of 150,000t/yr of special high grade zinc by the end of 2004.
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 . 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.
June 10, 2020
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