Igor PLAKSIN, USSR Hydrometallurgist. Doctor of Technology Science; Professor, and Head, Chair of the Metallurgy of Noble Metals, Moscow Institute of Non-Ferrous Metals and Gold, since 1930; corresponding member, USSR Academy of Science, since 1946; Department Head, Mining Institute, USSR Academy of Science. Stalin Prizes, 1951, 1952; Order of Lenin; Order of Red Banner of Labor; medals. Member, Communist Party, since 1945.
- Specialist in theory and technology of hydrometallurgy and ore concentration. 1944-1946 associate, Mining Institute, USSR Academy of Science.