The preparation of wollastonite of high aspect ratio is an important matter of further procession of wollastonite ore.
高长径比超细硅灰石的制备是硅灰石矿物深加工技术的一个重要研究内容。
According to this cutoff grade, the paper has calculated the ratio of ore and rock while cutoff drawing that provide science foundation for the drawing of Xiaoguanzhuang iron mine.
据此计算了截止放矿时的矿岩比，为小官庄矿放矿提供了科学依据。
The effects of leaching temperature, initial KOH concentration, leaching time and mass ratio of alkali to ore on the leaching rate of Nb and Ta were investigated.
探讨了反应温度、初始KOH浓度、浸出时间和碱矿比等因素对铌和钽的浸出率的影响。
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