Principle of removing molybdenum from producing calciumtungstate process is set forth, concrete operation technology is presented.
阐述了生产钨酸钙过程中除钼的原理，并提出了具体的操作工艺。
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This paper describes the atomic absorption method in which the pyrogallol is used as releasing agent to assay directly the trace amount of calcium in calciumtungstate in air-acetylene flame.