In 2006, SOMAIR decided to increase the uranium production by 50% using heap leaching for the treatment of low grade ores. These ores, which come from different lodes with various properties, have been studied in four...In 2006, SOMAIR decided to increase the uranium production by 50% using heap leaching for the treatment of low grade ores. These ores, which come from different lodes with various properties, have been studied in four steps： （ 1 ） Lab tests： to compare the ores （characterization, acid consumptions, recovery...）; （2） Column tests on an average sample： to define significant parameters for a feasibility study; （3） Column tests on specific samples： to optimize recovery for each ore and identify problems of percolation due to the clays; （4） Pilot tests in large boxes （stalls）： to validate process parameters. Uranium production by heap leaching started in July 2009.展开更多
Nuclear power is a powerful and effective energy branch in Ukraine. There are currently 4 active nuclear power stations （NPS） and 13 operational VVER energy units, producing a total power of 11880 MW, in the country...Nuclear power is a powerful and effective energy branch in Ukraine. There are currently 4 active nuclear power stations （NPS） and 13 operational VVER energy units, producing a total power of 11880 MW, in the country. According to the data collected from the International Agency of Nuclear-Power Energy, Ukraine is in seventh place for the largest supply of uranium on the planet. The use of nuclear power in Ukraine includes： extraction and processing uranium ore, production of UF6, production of zirconia rental and purveyances from a zirconia alloy, production of heat-radiating collections, storage of exhaust nuclear fuel and nuclear wastes. The realisation of uranium isotopic enrichment is the main problem in the structure of organisation in nuclear fuel production in Ukraine. This country has a unique station, non-operative Chemobyl NPS, where different types of wastes are located. Two factories are currently being built there in order to process the liquid and solid radio-active wastes. In perspective, Ukrainian nuclear-power energy will be enriched with new nuclear-power units and security systems to ensure safe manufacturing.展开更多
文摘In 2006, SOMAIR decided to increase the uranium production by 50% using heap leaching for the treatment of low grade ores. These ores, which come from different lodes with various properties, have been studied in four steps： （ 1 ） Lab tests： to compare the ores （characterization, acid consumptions, recovery...）; （2） Column tests on an average sample： to define significant parameters for a feasibility study; （3） Column tests on specific samples： to optimize recovery for each ore and identify problems of percolation due to the clays; （4） Pilot tests in large boxes （stalls）： to validate process parameters. Uranium production by heap leaching started in July 2009.
文摘Nuclear power is a powerful and effective energy branch in Ukraine. There are currently 4 active nuclear power stations （NPS） and 13 operational VVER energy units, producing a total power of 11880 MW, in the country. According to the data collected from the International Agency of Nuclear-Power Energy, Ukraine is in seventh place for the largest supply of uranium on the planet. The use of nuclear power in Ukraine includes： extraction and processing uranium ore, production of UF6, production of zirconia rental and purveyances from a zirconia alloy, production of heat-radiating collections, storage of exhaust nuclear fuel and nuclear wastes. The realisation of uranium isotopic enrichment is the main problem in the structure of organisation in nuclear fuel production in Ukraine. This country has a unique station, non-operative Chemobyl NPS, where different types of wastes are located. Two factories are currently being built there in order to process the liquid and solid radio-active wastes. In perspective, Ukrainian nuclear-power energy will be enriched with new nuclear-power units and security systems to ensure safe manufacturing.
