PURIFICATION OF TiCL4 TROUGH THE PRODUCTION OF NEW CO-PRODUCTS

PURIFICATION OF TiCL4 TROUGH THE PRODUCTION OF NEW CO-PRODUCTS

The present disclosure relates to reacting tin metal with crude TiCl4 containing arsenic to produce pure TiCl4, SnCl4, and an arsenic solid co-product. In some embodiments, the contaminant vanadium is removed as well. In another embodiment, the vanadium is removed separately through a commercial pro...

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1. Verfasser: HELBERG, LISA EDITH
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Sprache:eng ; fre ; ger
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CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
INORGANIC CHEMISTRY
METALLURGY
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description The present disclosure relates to reacting tin metal with crude TiCl4 containing arsenic to produce pure TiCl4, SnCl4, and an arsenic solid co-product. In some embodiments, the contaminant vanadium is removed as well. In another embodiment, the vanadium is removed separately through a commercial process and the resulting arsenic containing commercial grade of purified TiCl4 is reacted with elemental tin, sulfur and ferric chloride to substantially reduce the arsenic. The reaction is preferably done in a continuous fashion in two stages for maximum through-put and utility at an elevated temperature. Distillation can be used to purify the TiCl4 produced and simultaneously yield a purified SnCl4 product. The synthesis of SnCl4 in this method utilizes waste chloride to save virgin chlorine which would otherwise be used.
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In some embodiments, the contaminant vanadium is removed as well. In another embodiment, the vanadium is removed separately through a commercial process and the resulting arsenic containing commercial grade of purified TiCl4 is reacted with elemental tin, sulfur and ferric chloride to substantially reduce the arsenic. The reaction is preferably done in a continuous fashion in two stages for maximum through-put and utility at an elevated temperature. Distillation can be used to purify the TiCl4 produced and simultaneously yield a purified SnCl4 product. 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subjects CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
INORGANIC CHEMISTRY
METALLURGY
title PURIFICATION OF TiCL4 TROUGH THE PRODUCTION OF NEW CO-PRODUCTS
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