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METHOD OF PRODUCING ARTIFICIAL SLAGS, ARTIFICIAL SLAGS SO OBTAINED AND THEIR UTILISATION
METHOD OF PRODUCING ARTIFICIAL SLAGS, ARTIFICIAL SLAGS SO OBTAINED AND THEIR UTILISATION
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机译:人造渣的生产方法,所获得的人造渣及其利用
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摘要
1. Process for producing artificial slag, comprising the preparation of a charge containing at least, in a free or compounded state, lime, silica and alumina, and the complete melting of these charge at a temperature between 1400 and 1550 degrees C, the chemical composition of said charge being such that the molten artificiel slag contains at least 45 to 52% CaO, 15 to 22% Al2 O3 and 27 to 34% SiO2 with respect to the dry material and is able to vitrify after the melting, characterized in that the dry charge is brought to complete melting in a single vessel by a single heating step, within the mass, at a constant temperature, obtained by electrical way, the introduced charge having a granulometry lower than screen apertures of 5 mm.
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