共查询到14条相似文献,搜索用时 93 毫秒
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察尔汗盐湖是我国最大的可溶性钾镁盐矿床,以相图理论为依据,介绍了反浮选—冷结晶法从含钠光卤石制取氯化钾的相图分析。 相似文献
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马海盐湖钾资源经过十几年的开发,在生产氯化钾过程中排放了大量的含钾尾盐,随着盐湖钾资源持续的开发,马海盐湖的钾资源已凸显日益枯竭的趋势,为高效利用马海盐湖的钾盐资源,近年来开展了对浮选法生产氯化钾过程所排放的含钾尾盐矿的开发利用技术研究。介绍了采用强制搅拌溶浸技术,溶浸马海盐湖含钾尾矿中钾资源的试验情况及所取得的试验结果,并对试验过程中出现的问题进行了讨论。 相似文献
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通过L27(9×39)混合水平正交试验确定天青石矿浮选的捕收剂和优化的工艺条件,具有试验次数少、考察因素充分的优点。正交试验的极差分析结果显示,捕收剂种类和捕收剂浓度对回收率的影响最大,原矿来源和捕收剂种类对精矿品位的影响最大。通过试验选择出对天青石矿捕收效果好的捕收剂,即十二烷基硫酸钠、十六烷基三甲基溴化铵和单烷基磷酸酯,初步得到一些关键工艺条件:浮选时间(10~15 min)、叶轮转速(2 340 r/min)、矿浆中固体质量分数(25%)和药剂与矿样的质量比(2∶1000)。 相似文献
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美国矿业局与大盐湖矿物和化学公司提出了一种从约含6%K_2O 的大盐湖蒸发盐中富集钾盐的泡沫浮选法。主要为岩盐(NaCl)并带有少量钾盐镁矾(KCl·MgSO_4·2.7H_2O)和软钾镁矾(K_2SO_4·MgSO_4·6H_2O)的粗蒸发盐在饱和卤水溶液中调和,以便将不可浮的钾盐镁矾转化成可浮的矿物软钾镁矾。所得的软钾镁矾用中等分子量的脂肪酸进行选择性地浮选。连续的小规模中间厂试验表明:80%的钾可以从粗蒸发盐中回收到约含13%K_2O 的浮选精矿中。 相似文献
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M. N. Shimaraev V. M. Domysheva R. Yu. Gnatovskii V. V. Blinov M. V. Sakirko 《Geography and Natural Resources》2016,37(3):212-219
We investigated the influence of deep forced temperature convection on aeration of the bottom water layer in the pelagic zone of Baikal. Temperature T (± 0.002°C) and oxygen O2 concentration (± 0.01 mg/L) were measured by using the SBE-25 probe with the SBE-43 oxygen sensor in May-July 2006?2007 and 2009?2013. Oxygen input into the bottom layer with cold intrusions was determined for 79 cases. The study revealed a quantitative correlation between the heat deficit and the rise in oxygen content in the bottom layer during cold intrusions. This correlation was used to reconstruct the values of intrusion aeration of the bottom layer during 1993?2005. It is ascertained that the intrusion-caused 2006?2013-average oxygen input into Baikal’s bottom layer is virtually close to the annual oxygen demand for oxidation processes in the water column and bottom sediments. In the southern and middle parts of Baikal, intrusion-caused input of oxygen corresponds to a higher rate of its demand (4.5?4.6x10-4 mg/L per day). A slight increase in oxygen concentration was detected in the bottom layer of the South and Middle Baikal and a slight decrease in the bottom layer of North Baikal during 1993?2013. 相似文献