4. Metallurgical apparatus
  5. Means for extracting and refining metal
  6. With separate refining zone

Yasuo Ojima

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Flash smelting furnace

Heating – Work chamber having heating means – Externally heated – liquid holding type of work container
Patent

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Flash smelting furnace

Metallurgical apparatus – Means for extracting and refining metal – With separate refining zone
Patent

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Method for operation of flash smelting furnace

Heating – Processes of heating or heater operation – Including melting – vaporizing – sintering – expanding...
Patent

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Method for recovery of Zn and Pb from iron and steel dust

Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent

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Method of smelting copper sulfide concentrate

Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate

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Profile ID: LFUS-PAI-P-317779

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