排序方式: 共有38条查询结果,搜索用时 15 毫秒
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离子交换法回收高钼钨中矿化选液中的钨钼 总被引:1,自引:0,他引:1
笔者对离子交换法回收高钼高磷钨中矿盐酸化选液中钨钼进行了研究。采用静态交换实验方法进行了树脂的选择,结果表明DX01-A树脂和D41X-B树脂对该化选液中钨钼回收富集效果最好。固定床实验结果显示在接触时间60min,室温条件下,DX01-A树脂对钨钼的穿透容量为69.9mg/mL,D41X-B树脂对钨钼的穿透容量为21.6mg/mL。两种负载树脂用NH4Cl+NH4OH混合液解吸,解吸率接近100%。两种树脂的除杂效率也很高,除磷率99.6%~99.7%,除钙率高达99.9%。 相似文献
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The removal of organic matter from H2 TaFT solution by adsorption was investigated in order to reduce the carbon content in the K2TaF7 crystal. Three kinds of adsorbent, LSA-5 resin, LSA-20 resin and active carbon were applied in the fixed bed respectively. Experimental results indicate that LAS-5 resin, LAS-20 resin, the mixture of LAS-5 resin and LAS-20 resin(with volume ratio of 1:1), and the active carbon can all reduce chemical oxygen demand(COD) value of the H2TaF7 solution, and reduce consequently carbon content of K2TaF7 crystal to 0.0010%-0.0015% from 0.002 5%-0.0030%. Comparing with the others, the active carbon is an approved adsorbent whose bed volumes of effluent reaches 70. In addition, there is a linear relationship between the COD value of H2TaF7 solution and the carbon content in K2TaF7 crystal, and the carbon content in K2TaF7 crystal decreases with the decreasing of COD value of H2TaF7 solution. When the COD value of H2TaF7 solution is lower than 7 mg/L, the carbon content in K2TaF7 crystal would decrease to less than 0. 001 5%. 相似文献
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石煤提钒碱浸液的除硅实验研究 总被引:2,自引:0,他引:2
针对石煤提钒碱浸液硅浓度高的特点,采用混凝沉淀法除去碱浸液中大部分的硅。实验表明:在溶液反应温度为98℃、pH为10.5时,加入溶液体积量3%的硫酸铝溶液(102 g/L),控制终点pH为9.0,并基本保持溶液体积不变,保温1 h的最优条件下,除硅率达90%,钒损失率小于1.5%。 相似文献
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活性炭去除工业钽液中有机物的研究 总被引:1,自引:0,他引:1
进行了活性炭去除工业钽液中的有机物,以降低产品氟钽酸钾晶体含碳量的研究。结果表明,活性炭可有效地降低钽液中的有机物含量(COD值),从而降低氟钽酸钾产品的含碳量,氟钽酸钾晶体的含碳量由原来的0.0025%~0.0030%降低到现在的0.0010%~0.0015%,穿漏吸附倍数达到了70以上。另外,研究表明,钽液COD值与氟钽酸钾晶体含碳量成线性关系,氟钽酸钾晶体中含碳量随钽液COD值的降低而降低,COD值低于8mg/L时,氟钽酸钾含碳量降低到0.0015%以下。 相似文献