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公开(公告)号：US3912498A
公开(公告)日：1975-10-14
申请号：US47180374
申请日：1974-05-20
申请人： TICOA COMPANY INC
发明人： TAYLOR PAUL FRANKLIN
CPC分类号： C22B34/14 , C22B34/124 , C22B34/1259 , C22B34/1295
摘要： Ores containing oxides of Titanium, Zirconium and Hafnium metals are reduced by mixing them in the powdered state with a chemical solution formula consisting primarily of phosphoric acid, zinc oxide, and a sulfated surfactant. Calcium carbonate is added to the solution as a catalyst and the mixture is brought to a boil, allowing the volatile materials to vaporize out of the mixture so as to provide either pliable or hard formed residue material. Sodium bicarbonate and water are added to the pliable which reacts chemically with waste chemicals, then is decanted and flushed with water, cleansing agents, etc. and dried. Powder may then be subjected to the plasma arc furnace so as to provide commercially pure and semi-pure powder, sponge-like ingot, or metallized upon other metal surfaces. Or the powder may be leached and cleansed of the phosphide contaminants within it and then smelted. This is accomplished by boiling it within hydroxide bases, molten halogen salts, or burning it within a mixture of hydroxide bases and sugar. Resultant material then sets in repose with added water, boiled, flushed, reacted with hydrochloric acid, again boiled with water, cleansed and rinsed with water, then dried, screened and smelted. Smelting is accomplished by plasma arc furnaces, vacuum-inert furnaces containing molten metal of the Ia or IIa Periodic Table Class groups, or vacuuminert furnaces operating at the respective melting points of the metal. The hard formed residue is pulverized to small particle size, boiled within hydroxide bases, molten halogen salts, or burned within a mixture of hydroxide bases and sugar. Resultant material then stes in repose with added water, boiled, flushed, reacted with hydrochloric acid, again boiled with water, cleansed and rinsed with water, then dried, screened and smelted. Smelting is accomplished by plasma arc furnaces, vacuum-inert furnaces containing molten metal of the Ia or IIa Periodic Table Class groups, or vacuum-inert furnaces operating at the respective melting points of the metal.
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