应用衍生气相色谱法测定含氟稀土精矿焙烧逸出气体中的氟化物。
Derivative gas chromatography is used to analyze the fluorinated compound derived from the gas out of the rare earth concentrates containing fluorine.
结果表明，经一次粗选、二次精选选别，可获稀土精矿品位52％。
The results show that a rare-earth concentrate with a grade of 52% can be obtained by one roughing and two cleanings.
研究了固氟氯化铵焙烧法分解包头混合型稀土精矿回收稀土的动力学。
The kinetics on chlorinating the rare earth of Baotou rare earth mixed concentrate after fixed fluorine treatment was determined.
本文就包头30 %稀土精矿直接入电弧炉冶炼稀土硅铁合金新工艺的实践，试图从技术上加以分析探讨，以解释这一业已完成的新工艺路线的合理性。
This paper is focused on technical analysis of the new process using 30% Baotou RE concentrate to produce RE ferrosilicon and tries to confirm the rationality of the finished new process.
引用氟碳铈镧矿精矿中氧化稀土重量法的国家标准，在此经典的分析方法的基础上做了一些试验，重新整理、建立了新的焙烧矿中稀土总量的分析方法。
This paper established a new method for determination of total content of rare earths in bake ore by doing some tests based on national standard of determination of REO in bastnasite concentrate.
稀土湿法冶金项目，包括精矿处理、稀土分离和提纯等方面；
Projects on rare earth hydrometallurgy, including rare earth concentrate treatment, rare earth seperation and purification, etc.
以微山氟碳铈精矿为原料，研究了预处理、焙烧、淬火等工艺条件对制备稀土抛光粉性能的影响。
The technological conditions of preparing polishes from bastnasite such as pretreating with hydrochloride acid, roasting and quenching were studied.
以微山氟碳铈精矿为原料，研究了预处理、焙烧、淬火等工艺条件对制备稀土抛光粉性能的影响。
The technological conditions of preparing polishes from bastnasite such as pretreating with hydrochloride acid, roasting and quenching were studied.
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