Studied China's volcanic rock, granite, sedimentary rock lithology, three gold lock detail Qing and other 11 kinds of mixed uranium ore heap leaching acid curing conditions that aging mixed acid heap leaching of uranium suitable for the vast majority of our country. The following is only the research they have done on the Dachayuan mining area. The ore is a glass matrix rhyolite, a massive structure, dense and hard, and brittle. The uranium minerals are mainly bituminous uranium, a small amount of uranium and secondary uranium minerals in high oxidation state. The main process parameters are as follows: Ore grade: ≥0.08% Ore size: -6mm Ore content before ore acid mixing: ≤3% Mixing liquid to solid ratio: ≤0.06 Mixing acid concentration: ≤60% Placed at room temperature after mixing with acid: 3d Curing temperature: 95±4°C Maturing time: 2h Placement time after ripening: 22h Mining area per unit area: 3t∕m 2 Drip irrigation speed: 30L h (h·m 2 ) Period: 40d The amount of iron in the leaching solution: ≥5.0g∕L Leaching time: 5h∕d Five piles are connected in series, four of which are flooded, one pile is unloaded or piled up. Formula Milk Maker,baby formula milk maker,Automatic Baby Formula milk maker,Automatic Electric Formula Dispenser,Automatic Electric Formula Mixer Wuxi Swif International Trade Co., Ltd. , https://www.swifglobal.com