7. Production of antimony chloride
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Process
SbCl 3 is obtained by direct chlorination of antimony with chlorine gas. This is usually done in a percolation column-type apparatus, where the chlorine is fed to the top of the antimony charge, ensuring that the reduced form SbCl 3 is obtained by trickling. The temperature can reach 200°C. If, on the other hand, SbCl 5 is desired, a further addition of chlorine at the base of the reaction column is sufficient.
The products are then condensed, which constitutes a product purification operation.
Another process involves dissolving and reacting antimony oxide in hot, concentrated hydrochloric acid. Distillation of the crude product in the presence...
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Production of antimony chloride
Chlorination of scrap metal
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