Recovery of metal chlorides from their complexes by molten salt

Distillation: processes – separatory – With chemical reaction – Including step of adding catalyst or reacting material

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203 39, 203 42, 203DIG16, 203DIG25, 23945, 204 64T, 204130, 423 76, 423492, B01D 300, C01G 2504, C01G 2704

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048656968

ABSTRACT:
This is a process for removing phosphorus oxychloride from a complex of zirconium or hafnium chloride and phosphorus oxychloride utilizing a lithium-potassium chloride molten salt absorber vessel displacing phosphorous oxychloride from the complex, with a condenser which has the complex of zirconium or hafnium chloride and phosphorus oxychloride as the condensing fluid to scrub zirconium or hafnium chloride from the phosphorus oxychloride vapor released from the complex. The process uses at least one separate vessel to strip the zirconium or hafnium chloride from the lithium-potassium chloride molten salt.

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