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US 4,359,344 AGranted
Salt removal from Mg granules
AssigneeThe Dow Chemical Company
InventorEdward J. Skach, Jr.
Life of this patent
Estimating the term…
Abstract
Salt is removed from salt-coated or salt-contaminated Mg particles by leaching the salt with an alkaline aqueous wash, e.g., NaOH, then removing water from the Mg particles by using a water-miscible, inert, evaporatable, non-aqueous liquid, e.g. acetone.
Claims11
A process for removing a salt coating from Mg particles, said process comprising
- (a) leaching said salt coating from said Mg particles by contacting said particles with an alkaline aqueous wash solution at a pH of at least about 10 for a period of time sufficient to dissolve said salt coating,
- (b) draining said aqueous wash from said Mg particles, and
- (c) removing residual aqueous wash from said Mg particles by contacting said particles with a water-miscible, evaporatable, inert, non-aqueous liquid.
Dependencies are inferred from the claim text.