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US 2013/0280149 A1Published application
Purification of Titanium Tetrachloride
AssigneeCristal USA Inc.
InventorsBela Derecskei, Alexandre Jean Fines, Alastair Valentine
Life of this patent
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Abstract
Disclosed is a process/system for the removal of metal chloride impurities from a titanium tetrachloride stream. The metal chloride impurities are removed through contact of the titanium tetrachloride stream with a sorbent material comprising a member selected from the group consisting of an alumino-silicate, activated alumina, ultrafine TiO2, and combinations thereof.
Claims30
A titanium tetrachloride purification process comprising the steps of:
- a) contacting a sorbent material with a feedstock comprising titanium tetrachloride and at least one impurity to form a product stream, wherein said sorbent material comprises a member selected from the group consisting of an alumino-silicate, activated alumina, ultrafine TiO2, and combinations thereof, and wherein said at least one impurity comprises a member selected from the group consisting of carbonyl sulfide, sulfur dioxide, phosgene, hydrogen sulfide, carbon disulfide, chlorides of:
- aluminum, carbon, gallium, indium, tin, thallium, lead, bismuth, polonium, boron, silicon, germanium, arsenic, antimony, tellurium, zirconium, hafnium, iron, chromium, copper, magnesium, vanadium, nickel, thorium, uranium, oxychlorides of:
- aluminum, bismuth, arsenic, antimony, zirconium, hafnium, chromium, vanadium, uranium;
- and combinations thereof;
- and
- b) withdrawing said product stream.
3 more elements
A titanium tetrachloride purification process comprising the steps of:
- a) contacting a feedstock comprising titanium tetrachloride and at least one impurity with an alumino-silicate to form a product stream, wherein said at least one impurity comprises a member selected from the group consisting of carbonyl sulfide, sulfur dioxide, phosgene, hydrogen sulfide, carbon disulfide, and chlorides of:
- aluminum, carbon, gallium, indium, tin, thallium, lead, bismuth, polonium, boron, silicon, germanium, arsenic, antimony, tellurium, zirconium, hafnium, iron, chromium, copper, magnesium, vanadium, nickel, thorium, uranium, oxychlorides of:
- aluminum, bismuth, arsenic, antimony, zirconium, hafnium, chromium, vanadium, uranium;
- and combinations thereof;
- and
- b) withdrawing said product stream.
3 more elements
Dependencies are inferred from the claim text.