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METHOD FOR DETERMINING SOURCE SINK TERM IN IONIC TYPE RARE EARTH ORE LEACHING PROCESS
METHOD FOR DETERMINING SOURCE SINK TERM IN IONIC TYPE RARE EARTH ORE LEACHING PROCESS
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机译:离子型稀土矿浸出过程中源沉术语的确定方法
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摘要
The present disclosure relates to a method for determining a source sink term of an ionic type rare earth ore leaching process. The method includes the following four steps: (1) determining an ion exchange selection coefficient of a rare earth ore sample; (2) determining the rare earth grade of the rare earth ore sample; (3) building a source sink term model of the ore leaching process; and (4) determining parameters in the source sink term model. The present disclosure can simulate the ionic type rare earth ore leaching process by combining a convection-dispersion equation, and determine the optimal concentration of the ore leaching agent. When an ammonium sulfate solution at an optimal concentration of 12.0 g/L is used to perform a column leaching test, the obtained rare earth leaching rate is up to 96.3 percent.
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机译:本发明涉及一种用于确定离子型稀土矿浸出过程的源汇项的方法。该方法包括以下四个步骤:(1)确定稀土矿石样品的离子交换选择系数; (2)确定稀土矿样品的稀土品位; (3)建立矿石浸出过程的源汇术语模型; (4)确定源宿项模型中的参数。通过结合对流扩散方程,可以模拟离子型稀土矿的浸出过程,并确定最佳的浸出剂浓度。当使用最佳浓度12.0 g / L的硫酸铵溶液进行柱浸出试验时,获得的稀土浸出率高达96.3%。
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