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ZA9603382B
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Method and apparatus for feeding reaction gas and solids
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FI952492A0
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Process and apparatus for feeding reaction gas solids
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FI945379A0
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Method for dissolving nickel copper rock
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FI942340A0
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Method and apparatus for providing controlled mixing swirls and gas circulation
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FI940739A0
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Method and apparatus for suspension melting
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FI935951A0
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Method and apparatus for streamlining the recovery of heat and dust from a waste heat boiler
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FI935539A0
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Method for the production of nickel fine stone from nickel-containing raw materials at least partially pyrometallurgically processed
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FI935393A0
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Process for extracting metals from large solution streams and apparatus for carrying out the process
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FI932886A0
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The method dissolves material containing zinc oxide and silicate
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FI932581A0
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Foerfarande ocfskonstruktion Foer effektiv kylning av ugnens botten oceggar and aktttagande av vaermeutvidgning
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FI924761A0
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Method and apparatus for treating a sulfide-containing concentrate
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FI922530A0
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Methods and apparatus for supplying reaction gases to a furnace
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FI922532A0
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Methods and apparatus for the oxidation of fuel in powder form with two gases with different oxygen levels
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FI920518A0
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Method for melting the material
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