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GB9502222D0
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Smelting process
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GB9026045D0
|
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Improvements in or relating to the separation of gold from precious metals
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GB9025424D0
|
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Method and apparatus for condensing metal vapour
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GB8925737D0
|
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Method and apparatus for condensing metal vapour
|
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GB8628575D0
|
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Recovery of copper from copper/lead alloys
|
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GB8626086D0
|
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Operation of zinc-smelting blast furnaces
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GB8626087D0
|
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Cleaning & cooling of metallurgical exhaust gases
|
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GB8616453D0
|
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Agglomeration of oxidic & metallic solids
|
|
GB8529508D0
|
|
Recovery of copper from furnace products
|
|
GB8529467D0
|
|
Recovery of copper/lead alloys
|
|
GB8529507D0
|
|
Zinc smelting
|
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GB8407692D0
|
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Recovery of metal values from oxidic materials
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GB1378401A
|
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Refining a molten metallurgical phase
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