配合从高Ca含钒钢渣中提钒工作,进行了Ca(VO_3)_2和NaCaVO_4在Na_2CO_3-NaHCO_3缓冲溶液中钒浸取动力学研究。实验结果表明,这两种含钙的钒酸盐的浸取动力学行为不同。Ca(VO_3)_2的浸取速率受与Na_2CO_3和NaHCO_3的平行反应控制;NaCaVO_4在所实验的范围内不与Na_2CO_3反应,而与NaHCO_3反应的浸取速率的控制步骤是HCO_3~-离子在NaCaVO_4固体表面上的化学吸附。
The kinetics of V leaching from Ca(VO_3)_2 and NaCaVO_4 in Na_2CO_3-NaHCO_3 buffer solution has been investigated. It has been shown that the kinetics of these two samples is rather different. The rate of leaching of Ca(VO_3)_2 is controlled by the parallel reactions between Ca(VO_3)_2 with Na_2CO_3 and NaHCO_3 respectively. No reaction occurs between NaCaVO_4 and Na_2CO_3 at least in the experimental range of the present study, the leaching rate of NaCaVO_4 with NaHCO_3 is controlled by the chemical adsorption of HCO_3~- ions on the solid surface.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] | |
| [14] | |
| [15] | |
| [16] | |
| [17] | |
| [18] | |
| [19] | |
| [20] | |
| [21] | |
| [22] | |
| [23] |
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