Pidgeon process


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Pidgeon process

[′pij·ən ‚präs·əs]
(metallurgy)
A method for producing magnesium from calcined dolomite by reduction with ferrosilicon. Also known as ferrosilicon process; silicothermic process.
References in periodicals archive ?
It has (through a JV company, in which it is earning a minimum 75% interest) a pure magnesium plant in China - using the simple, cheap and proven pidgeon process - which has a rare permit in place to substantially expand production to 105,000tpa (which would make it one of the world's largest producers), an option to acquire the supplying dolomite (magnesium ore) mine and will have the new capability to produce higher value magnesium alloys (used for making lighter motor vehicles and mobile devices) at effectively the same cost as producing the pure magnesium.
China dominates global magnesium production using the pidgeon process - a simple, cheap thermal process which is commercially and technically robust compared to the more expensive and capital intensive electrolytic processes in use in western countries.
More than five US plants were soon using the Pidgeon process, and their staff had been trained in Canada.