"0"^^ . . "0"^^ . "Relation Between the Zn (II) Chemical Speciation and its Acid Leaching from Fine Grained Metallurgical Wastes"@en . "3"^^ . . "Relation Between the Zn (II) Chemical Speciation and its Acid Leaching from Fine Grained Metallurgical Wastes"@en . . . "RIV/61989100:27640/00:00001305" . . "The forms of zinc in the blast furnace and steelmaking sludge were determined applying the sequential extraction method of chemical speciation. In the blast furnace sludge zinc is largely present in the ion-exchange and superficially occluded form and that is why its sepatation by acid leaching may be successful. These assumptions were proved when studying the heterogeneous acid-base equilibrium in discontinual static leaching under mild acidic conditions - c(HCl) max. 0.1 mol.dm-3, when 77% of zinc were extracted and iron practically did not pass into solution. As for the steelmaking sludge, an unambiguous correlation between the chemical speciation and acid leaching has not been found. Buffering equilibrium is establised at pH 5,5 and that is connected with the presence of iron in the lower oxidation states, especially in the fe(II) form."@en . . . "Z(MSM 279000017)" . "Relation Between the Zn (II) Chemical Speciation and its Acid Leaching from Fine Grained Metallurgical Wastes" . "27640" . "SK - Slovensk\u00E1 republika" . "[08CAC470E02D]" . "Metallurgical Waste, Chemical Speciation of zink"@en . . "The forms of zinc in the blast furnace and steelmaking sludge were determined applying the sequential extraction method of chemical speciation. In the blast furnace sludge zinc is largely present in the ion-exchange and superficially occluded form and that is why its sepatation by acid leaching may be successful. These assumptions were proved when studying the heterogeneous acid-base equilibrium in discontinual static leaching under mild acidic conditions - c(HCl) max. 0.1 mol.dm-3, when 77% of zinc were extracted and iron practically did not pass into solution. As for the steelmaking sludge, an unambiguous correlation between the chemical speciation and acid leaching has not been found. Buffering equilibrium is establised at pH 5,5 and that is connected with the presence of iron in the lower oxidation states, especially in the fe(II) form." . "1335-1532" . . "Acta Metallurgica Slovaca" . "310-317" . . "Kulveitov\u00E1, Hana" . . . "4" . . "Le\u0161ko, Juraj" . "6" . . "725030" . "RIV/61989100:27640/00:00001305!RIV/2002/MSM/276402/N" . "Relation Between the Zn (II) Chemical Speciation and its Acid Leaching from Fine Grained Metallurgical Wastes" . . "8"^^ . . "Seidlerov\u00E1, Jana" . "3"^^ .