Study on the Leaching of Rhodochrosite

The process of preparing manganese from rhodochrosite by acid leaching is studied by using the or- thogonal design and the optimum leaching condition is obtained.The leaching rate of rhodochrosite is approxi- mately up to 92% on the following condition:the ratio of ore to sulfuric acid is 1:0.65,80℃,3.5h with 90 r/rain.