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ES144454A1
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A process for calcining or calcining and melting materials containing sulfides.
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CA409881A
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Sulphide material roasting process
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CA251381A
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Process for the manufacture of metals, alloys and the like
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CA260128A
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Oxide raw material
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CA335721A
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Carbon chromium alloy
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CA409880A
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Alumina extraction from bauxite
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CA350197A
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Spinel product
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CA308306A
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Process of producing metals and alloys
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CA294649A
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Process for producing metals and alloys
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CA355270A
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Alloy refining process
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CA306872A
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Process of producing sulphide and aluminium oxide products
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CA340861A
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Chromium and alloy
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CA282064A
|
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Aluminum product
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CA290706A
|
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Metal manufacture
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CA301352A
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Alloyed iron and steel
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CA318571A
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Manufacture of aluminium and alloys
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CA304126A
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Highly refractory material
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CA309803A
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Production of refractory materials
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CA282065A
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Aluminum product
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