油页岩灰渣中稀土元素和微量元素富集度均高于油页岩。
The contents of both REE and trace elements in the oil shale residue are higher than those in oil shale.
叙述了从赤泥中稀土金属回收的意义以及我国赤泥中稀土元素的赋存状况。
The significance of rare earth metals recovery from red mud and RE elements store general situation in red mud was narrated.
揭示了煤中稀土元素的含量随着矿物含量、别是黏土矿物含量的变化而显著变化的特征。
The study showed that the rare-earth element content in coal would be varied with the mineral contents, specially the clay content.
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