293 PLAKSIN 



PLAKSIN, IGOR' NIKOLAEVICH (Metallurgist and Mining 

 Engineer) 

 L N. Plaksin was born October 8, 1900. He graduated in 

 1926 from the Far East University. In 1930 he became a pro- 

 fessor at the Moscow Institute of Nonferrous Metals and Gold. 

 He began working, in 1944, also at the Mining Institute of the 

 U.S.S.R. Academy of Sciences. He has been a member of the 

 Communist Party of Soviet Union since 1945. In 1946 he was 

 elected a Corresponding Member of the U.S.S.R. Academy of 

 Sciences. He was awarded Stalin Prizes in 1951 and in 1952. 

 Plaksin has worked in hydrometallurgy and on the concen- 

 tration of commercial minerals. He studied the influence of 

 forms in which minerals are found in ores on their concen- 

 tration and has used microradiography and radiometry. 

 Bibliography: 



Interaction of Alloys and Natural Gold with Mercury and 

 with Cyanide Solutions. Moscow-Leningrad: 1937. 

 Metallurgy of Noble Metals. Moscow: 1943. 

 and D. M. Yukhtanov . Hydrometallurgy. Moscow: 1949. 

 On Testing and Testing Analysis. Moscow: 1947. 

 Influence of gases and reagents on minerals in flotation 

 processes. Izvest. Akad. Nauk S.S.S.R. Otdel. Tekh. Nauk, 

 1950, #12. 



Results and Perspectives of Investigation on Interaction of 

 Reagents with Minerals in Flotation. Izvest. Akad. Nauk 

 S.S.S.R. Otdel. Tekh. Nauk, 1955, #1. 



and G. A. Myasnikova and A. M. Okolovich. Flotation Con- 

 centration of Arsenic-Pyrite Ores. Moscow: 1955. 

 Using microantoradiography for the study of interaction re- 

 agents with minerals in flotation. Reprinted from the Pro- 

 ceedings of the Second Internation Congress of Surface Ac- 

 tivity, 2. Leningrad: 1957. 



and S. V. Bessonov . Role of gases in flotation reactions. 

 Reprinted from the Proceedings of the Second Internation 

 Congress of Surface Activity, 2. Leningrad: 1957. 

 Resultats generaux de travaux sur la flotation des charbons 

 et perspectives scientifiques et techniques de son expansion. 

 Revue de I'industrie minerale, 1955, 36, #626. 

 Office: Mining Institute of USSR Academy of Sciences 



Stantsiya Panki 

 Moscow Oblast', USSR 

 Residence: Staromonetry pr. 3 



Moscow, USSR 

 Telephone: Bl 53 30 



