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Application filed by Magnitogorsk Gi Proekt Metal, Magnitogorsk Metallurg, Proizv Ob Vniimetmash N, Soyuznyj I Proekt Agregatov StfiledCriticalMagnitogorsk Gi Proekt Metal
Priority to SU904862893ApriorityCriticalpatent/RU1775475C/en
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Process for more intensive pirometallurgic refining primere copper materials and copper-wastes containing pb and sn in basic-lined furnace with utilizing impurity-oriented less-corrosive, morestaged iron-oxide-based slag