Alcan spending $180M on facility to recycle spent smelter pot lining

Oct 03, 2006 | 11:28 AM | Paul Schaffer

Alcan Inc. plans to spend $180 million on a plant in Quebec's Saguenay-Lac-Saint-Jean region to recycle pot lining from primary aluminum smelters.

The facility will use a proprietary technology called low-concentration caustic leaching and liming. The main output substance, consisting of carbon and other inert materials, can be used as a raw material in manufacturing cement.

All of the spent pot lining will be recyclable, according to the company's announcement, but an October 2005 environmental impact statement for the plant, available on the Web, assumes that some of the residue will still have to be buried. ....

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