The effects of reaction time,reaction temperature,stirring speed and flowrate of CO2 gas on desilication rate and loss rate of vanadium were studied.The results indicated that desilication rate increases with the increase of flowrate of CO2 gas and reaction time.Reaction temperature and stirring speed have little effect on desilication rate,while influence the loss rate of vanadium significantly.Under the condition of reaction time of 2 h,reaction temperature of 95℃,stirring speed of 180 r/min,flowrate of CO2 gas of 60 mL/min and aging time of 2 h,desilication rate is more than 96%and the loss rate of vanadium is about 4.24%.The residue of desilication process can be processed for silicon materials,such as high-grade hydrated silica,which commonly known as white carbon black.In addition,with this carbonation method,leaching regents NaOH can be recycled by simple treatments.
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机译：研究了反应时间，反应温度，搅拌速度和流量对CO 2脱硅率和钒损失率的影响。结果表明，脱硅率随CO 2气体流量和反应时间的增加而增加。速度对脱硅速率的影响很小，而对钒的损失率却有显着影响。在2 h反应时间，95℃反应温度，180 r / min搅拌速度，60 mL / min CO2气体流量的条件下老化时间为2 h时，硅化率大于96％，钒的损失率约为4.24％。硅化处理后的残留物可用于硅材料，例如高级水合二氧化硅，通常称为白色。此外，通过这种碳化方法，可以通过简单的处理方法来回收浸出剂NaOH。
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