Processing of low-grade uranium ores in the USSR

The paper is a further contribution to the study of the technology of uranium ore processing in the USSR, including that of low-grade ores. It describes a radiometric method of uranium ore enrichment, the use of autoclaves in processing technology, underground leaching and the sorption and extraction of uranium from pulps and solutions. It emphasizes the scientific and technical level achieved in the USSR, which has enabled a wide variety of problems in the processing of uranium raw materials and in environmental protection to be effectively solved. (author)