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December 12, 2012

Outotec gets marketing rights for Ausmelt TSL zinc fuming technology

Gerald Ondrey

Outotec Oyj (Espoo, Finland; has received the global marketing rights for the Ausmelt Top Submerged Lance (TSL) technology for the fuming of zinc bearing residues from Korea Zinc Co. Prior to the Outotec acquisition of Ausmelt Ltd. in 2010, Ausmelt had granted exclusive marketing rights of its TSL zinc fuming technology to Korea Zinc Co. Outotec and Korea Zinc have now agreed to terminate the marketing agreement to enable each company to develop their respective businesses in a mutually beneficial way.

Outotec and Korea Zinc will continue to work together in good cooperation to provide the best value and expertise to the customers worldwide by combining the design, engineering and implementation experience gained in the reference plants.

Zinc residues are a byproduct from the purification and refining of zinc. They have traditionally been stockpiled because there was no means to further extract various metals contained therein. The Ausmelt TSL zinc fuming technology is able to maximize the recovery of valuable metals from zinc residues and produce an environmentally friendly slag product that is clean and safe as a substitute for aggregates and various construction materials.

"By combining Ausmelt TSL zinc fuming technology with our proprietary hydrometallurgical and gas cleaning technologies we can offer our customers a total plant solution for sustainable and resource-efficient zinc processing. This will provide significant economic and environmental benefits to the existing and future zinc producers globally", says Jari Rosendal, president of Outotec's Non-ferrous Solutions business area.


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