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Application filed by Виктор Михайлович Чагайда, Вассим МунирfiledCriticalВиктор Михайлович Чагайда
Priority to UAA201100879ApriorityCriticalpatent/UA98060C2/en
Publication of UA98060C2publicationCriticalpatent/UA98060C2/en
The invention relates to metallurgy, namely to a method for processing of metallurgical dump slags forming at production of special steels. A method comprises the preparation of charge containing slags of production of special steels containing SiO, MgO, FeO, FeO, MnO, CrOand globulemetal as raw material, in which by introduction of carbon reduction agent the content of carbon is developed to 3.0-3.5 w/w, and by introduction of sand and limestone or dolomite the ratio SiO/CaO + MgO is developed to 0.8-1.3, melting of charge in reducing atmosphere at temperature 1590-1690 °C with formation of slag part of smelt and metallic part of smelt, producing of building material by pouring of slag part of smelt in water for it foaming and formation of porous glass-material and extraction of metal by pouring of metallic part of smelt into mould. The invention provides the increase of ecological efficiency and degree of recycling of metallurgical dump slags of production special steels withyieldof reduced metal up to 94.6 % and additional producing of foamed building material.
UAA201100879A2011-01-262011-01-26Method for processing of dump metallurgical slags
UA98060C2
(en)