Magnetite nanoparticles recover copper waste from whisky manufacturing process

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An image showing a distillery factory for Maltwhisky , Kampangphet, Thailand

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During its production whisky is distilled. Using copper stills for this process is important for developing the flavour and character of the whisky. However, a considerable amount of copper leaches into the whisky – manufacturers must remove this before the whisky is aged and bottled.

Researchers have recently discovered a new way to remove the copper that also allows it to be recycled. The copper is absorbed onto magnetite nanoparticles that can then be separated out using a magnet. The copper is then recovered and used as a catalyst in reactions to produce a wide array of products from polymers to pharmaceuticals.

Read the full story in Chemistry World.