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Chloride removal absorbents (1 reply)

9 months ago
Oberstorm 9 months ago

I read that in the processing of metal ores HCl is employed. Does this mean that later on there is a need to remove any remnants? Do chloride removal absorbents find any application within this industry?

Sandeep Bisht
9 months ago
Sandeep Bisht 9 months ago

HCl is extremely corrosive to most materials of construction...likely dissolution in sulphuric, caustic or ammonia for base metals & cyanide for precious metals; in the mineral processing world, generally zero discharge entails recycle of solutions to process from tailings; chlorides may be treated in waste waters if they are above groundwater discharge limits which I believe are ~250-mg/L...RO/SX technologies are commonly used for Cl removal; if you have a cheaper & more effective mousetrap.

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