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WENDELL EARL DUNN JR
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WENDELL EARL DUNN JR
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Application filed by WENDELL EARL DUNN JRfiledCriticalWENDELL EARL DUNN JR
Priority to ES389404ApriorityCriticalpatent/ES389404A1/en
Publication of ES389404A1publicationCriticalpatent/ES389404A1/en
Process for obtaining titanium dioxide, essentially pure and from a titaniferous mineral containing iron oxides, ti02 and small amounts of other metal oxide contaminants, characterized by comprising, in sequence, the phases of: (a) contacting a bed of titaniferous ore with chlorine gas in a solid and gas reactor, while maintaining the ore bed, under reducing conditions and at a high temperature, to form a partially chlorinated bed; (b) removing iron chlorides and other vaporized metals; (c) removing an amount from the partially chlorinated bed; (d) separating the amount removed from the bed in step (c) into a product fraction of titanium dioxide essentially free of iron and a second fraction containing iron; and (e) introducing said second iron-containing fraction into the reactor, or said second fraction containing iron and new mineral. (Machine-translation by Google Translate, not legally binding)
ES389404A1971-03-081971-03-08Procedure for the obtaining of titanium dioxide. (Machine-translation by Google Translate, not legally binding)
ExpiredES389404A1
(en)
Improvements in or relating to the purification of substantially anhydrous liquid halides of metals of group four of the periodic table according to mendeleef
Process for low temperature chlorination of roasted products from an iron sulphide roasting process prior to leaching out the nonferrous metal present therein
PROCESS FOR THE PREPARATION OF EXTREMELY PURE TITANIUM DIOXIDE FROM TITANOUS ORE CONTAINING TIO & O12 IRON OXIDES AND LOW QUANTITIES OF OTHER METAL OXIDES AS POLLUTION
A procedure for the recovery of valuable amounts of iron and valuable amounts of titanium from a source that takes iron and titanium. (Machine-translation by Google Translate, not legally binding)
Process for the recovery of oxides produced by vapor phase oxidation of metal chlorides, for example of titanium tetrachloride, and apparatus for its implementation