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Antimony Metal Process

A process for the production of antimony trioxide comprising the steps of: (i) reacting antimony trisulfide with iron (iii) chloride to produce antimony trichloride; and (ii) hydrolyzing antimony trichloride to produce antimony trioxide.In a preferred embodiment, the process is substantially closed or near-closed loop.Antimony trioxide is a known flame retardant for use in plastics, ceramics.

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