01-03-2018 дата публикации
Номер: US20180057911A1
Disclosed is a slag comprising, on a dry basis and expressed as the total of the metal present as elemental metal and the presence of the metal in an oxidized state, a) at least 7% wt and at most 49% wt of Fe, b) at most 1.3% wt of Cu, c) at least 24% wt and at most 44% wt of SiO, and d) at least 2.0% wt and at most 20% wt of CaO, characterised in that the slag comprises, on the same basis, e) at least 0.10% wt and at most 1.00% wt of Zn, f) at least 0.10% wt and at most 2.5% wt of MgO, and g) at most 0.100% wt of Pb. Further disclosed are an improved object comprising the slag, a process for the production of the slag, and a number of uses of the slag, whereby the slag may comprise up to at most 1.50% wt of zinc and down to 1.0% wt of CaO. 138-. (canceled)39. A slag comprising , on a dry basis and whereby the presence of a metal is expressed as the total of the metal present as elemental metal and the presence of the metal in an oxidized state ,a) at least 7% wt and at most 49% wt of iron, Fe,b) at most 1.3% wt of copper, Cu,{'sub': '2', 'c) at least 24% wt and at most 44% wt of silicon dioxide, SiO, and'}d) at least 2.0% wt and at most 20% wt of calcium oxide, CaO,characterized in that the slag comprises, on the same basis,e) at least 0.10% wt and at most 1.00% wt of zinc, Zn,f) at least 0.10% wt and at most 2.5% wt of magnesium oxide, MgO,{'sub': 2', '3, 'g) at least 4.0% wt and at most 12% wt of aluminium oxide, AlO, and'}h) at most 0.100% wt of lead, Pb.40. The slag according to claim 39 , further comprising claim 39 , on the same basis claim 39 , at least 9% wt and at most 63% wt of iron oxide claim 39 , FeO.41. The slag according to claim 39 , further comprising claim 39 , on the same basis claim 39 , at most 5% wt of sodium oxide claim 39 , NaO.42. The slag according to claim 39 , further comprising claim 39 , on the same basis claim 39 , at most 11.5% wt of aluminium oxide claim 39 , AlO.43. The slag according to comprising claim 39 , on the same basis ...
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