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Application filed by Vissh Khim T IfiledCriticalVissh Khim T I
Priority to BG8871189ApriorityCriticalpatent/BG48402A1/en
Publication of BG48402A1publicationCriticalpatent/BG48402A1/en
This method is an application for non-ferrous metallurgy. By this method the consumption of fluxes is reduced, the slag-formation processes are intensified and the quantity of the cold turnover materials being processed is increased. During the first period of converting fluxes, the cold turnover materials are fed. In the converter, preceding the pouring of each portion of matter, floatation wastes from coal dressings are supplied which feature the following composition in wt.%: carbon 30 - 50, silica 20 - 30, calcium oxide 2 - 5, alumina 5 - 10 and ferrous oxides 2 - 5. The ignition temperature of the floatation waste is 250-450 degrees C and its quantity is 5 - 15% of the mass of the fed matter.
BG8871189A1989-06-051989-06-05Method for converting
BG48402A1
(en)
Method for processing chromium oxide containing substances in large quantities, method for utilizing the processed substances, and products comprising the processed substances