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Boliden Starts New Silver Recovery Plant at Kokkola Zinc Smelter in Finland

Today is the official start of the new silver recovery plant at Boliden’s zinc smelter Kokkola in Finland. The SEK 250 million-investment will result in a production of 25 tonnes of silver annually.

In April of 2012 Boliden launched a project for extracting silver from zinc concentrates, the background being higher contents of silver in concentrates including the feed from the recent expanded zinc silver mine Boliden Garpenberg. The new plant will produce silver concentrate, an intermediate product, which will be sold to silver refineries. The amount of silver in concentrate will be approximately 25 tonnes annually.

“This new process is of great importance for Boliden Kokkola since it will improve both profitability and raw material efficiency. Silver concentrate will now be one of Boliden Kokkola’s most valuable by-products,” says Jarmo Herronen, General Manager at Boliden Kokkola.

The inauguration at Kokkola takes place at the same day as Boliden’s 90 years celebration, which focuses on knowledge and experience.

“Based on 90 years of knowledge and experience, Boliden has developed a strong competitive position. The Kokkola silver recovery process, and the recently inaugurated Garpenberg zinc- silver mine expansion, are both in line with our strategy to maximize the metal and by- product production from incoming raw materials,” says Lennart Evrell Boliden’s CEO.


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