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METALOTHERMIC REDUCTION OF REFRACTORY METAL OXIDES.
METALOTHERMIC REDUCTION OF REFRACTORY METAL OXIDES.
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机译:难熔金属氧化物的金属热还原。
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摘要
High purity refractory metals, valve metals, refractory metals oxides, valve metal oxides, or alloys thereof suitable for a variety of electrical, optical and mill product/fabricated parts usages are produced from their respective oxides by metalothermic reduction of a solid or liquid form of such oxide (18) using a reducing agent that establishes (after ignition) a highly exothermic reaction, the reaction preferably taking place in a continuously or step-wise moving oxide such as gravity fall (24) with metal retrievable at the bottom (30) and an oxide of the reducing agent being removable as a gas or in other convenient form and unreacted reducing agent derivatives being removable by leaching or like process.
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