对难分解的钛钽铌矿的酸分解工艺进行了试验研究。
Experiment is done on the acid hydrolysis of titanium-columbite-tantalite ore difficult to decompose.
目前钽铌矿的选矿多以重选为主，但重选法选别细粒钽铌矿的回收率非常低。
At present, most of Ta-Nb ores are processed by use of gravity concentration, with which the recovery of fine-grained Ta-Nb mineral is very low.
通过盈亏平衡分析，确定宜春钽铌矿盈亏平衡品位，提出黑斑矿的处理方案。
The breakeven grade of tantalum for Yichun Tantalum-niobium mine is determined by the analysis of the profit and loss, and the strategy on the black-spot ore exploration is proposed.
首次提出采用“配矿-koh熔盐分解-水浸出”的新工艺来处理低品位、难分解钽铌矿。
A new process called ore blending-KOH molten salt decomposition-water leaching was first put forward for the processing of a low-grade refractory tantalum-niobium ore.
实验研究了难分解铌钽矿在高浓度氢氧化钾溶液中浸出过程的机理。
The leaching mechanism of niobium from a refractory niobium-tantalum ore by concentrated potassium hydroxide was studied.
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。
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.
用等离子体发射光谱法测定了稀土铌钽矿中的稀土元素和钍量。
Rare earth elements and thorium in RE-Nb-Ta ores were determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES).
钙钛矿结构铌镁酸铅(PMN)是弛豫铁电体的典型代表。
Perovskite type lead magnesium niobate (PMN) is a relaxor ferroelectric.
晚三叠世矿化组合为钨锡铌钽；
The Triassic mineralization is Peraluminous granite-related W-Sn-Nb-Ta.
晚三叠世矿化组合为钨锡铌钽；
The Triassic mineralization is Peraluminous granite-related W-Sn-Nb-Ta.
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