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Application filed by Никола Кунчев, Никола ДОБРЕВ, Пенчо ЛЕСИДРЕНСКИ, Стоян Малъцев, Стоян Влаев, Мирослава КунчеваfiledCriticalНикола Кунчев
Priority to BG100257ApriorityCriticalpatent/BG61732B1/en
Publication of BG100257ApublicationCriticalpatent/BG100257A/en
Publication of BG61732B1publicationCriticalpatent/BG61732B1/en
The invention relates to a method for the extraction of copper of raw lead by liquation of sulphidation by subsequent treatment of the copper-arsenic byproducts by soda melting. By the method, the raw lead, after separation of the build-up along the chute of the melting furnace (byproduct 1), is subjected to coarse copper extraction by liquation and also in addition of powder sulphur in two successive stages where copper dross of reduced arsenic content (byproducts 2 & 3) is separated. The latter is treated separately or together with byproduct 1 by soda melting where copper-lead matte and alkaline-slag enriched arsenic is produced without forming any speiss.
BG100257A1995-12-271995-12-27Method for copper extraction of raw lead and treatment of the turned out products
BG61732B1
(en)