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压煮法熟料(以下简称熟料)碳酸化浸出的目的是将熟料中难溶的碳酸锂转化为易溶的碳酸氢锂与硅酸盐残渣分离,而制得碳酸鲤产品。在以前的试验中熟料碳酸化浸出是在常压下进行,致使碳酸化时间长、二氧化碳利用率低。熟料碳酸化时的反应为:Li_2CO_3+CO_2+H_2O→2LiHCO_3 当碳酸锂浓度一定时,二氧化碳的浓度决定生成碳酸氢锂的速度,二氧化碳的浓度越大反应速度越快;而二氧化碳浓度当温度一定时取决于二氧化碳气的压力,压力越大,浓度越
Pressure cooker clinker (hereinafter referred to as clinker) carbonated leaching is the purpose of the insoluble clinker lithium carbonate into soluble lithium bicarbonate and silicate residue separation, and prepared carp carp products. In previous tests, clinker carbonation leaching was carried out at atmospheric pressure, resulting in long carbonation times and low carbon dioxide utilization. The reaction of clinker carbonation is: Li_2CO_3 + CO_2 + H_2O → 2LiHCO_3 When the concentration of lithium carbonate is constant, the concentration of carbon dioxide determines the rate of lithium bicarbonate, the higher the concentration of carbon dioxide, the faster the reaction rate; while the carbon dioxide concentration of a Timing depends on the pressure of carbon dioxide gas, the greater the pressure, the more concentration