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Device for holding heating elements
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Process for repairing electrolysis cathodes
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Reducing oxygen content of copper melt comprises melting copper initially in shaft furnace, and subsequently feeding it to treatment furnace via transporting channel
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Concentration determination of metal ions in aqueous solution
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New low specific surface oxidised copper catalyst
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Wet scrubbing of gas - by pre-scrubbing and then accelerating gas prior to cyclone sepn. of clean gas
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METHOD FOR PRODUCING YELLOW COPPER OXYDUL
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METHOD AND DEVICE FOR GRANULATING LIQUID SLAG
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METHOD FOR PRODUCING METALLIC OR CERAMIC HOLLOW BALLS
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DEVICE FOR TAKING CLEARED WATER FROM PARTICULARLY Settling Tanks
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METHOD FOR MEASURING THE ACTIVE INHIBITOR CONCENTRATION DURING METAL DEPOSITION FROM AQUEOUS ELECTROLYTE
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METHOD FOR PRODUCING NON-FERROUS METAL POWDER OR NON-METAL POWDER MIXTURES
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METHOD FOR DEPOSITING GASEOUS METAL MERCURY FROM GASES
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METHOD FOR REMOVING MERCURY FROM ARSENIC WASTE SULFURIC ACID
