论文部分内容阅读
对强化氧化法脱除铝酸钠溶液中的S~(2-)进行了研究,挑选出能强化氧化除S~(2-)的物质,并通过改变添加物质的浓度来验证其是否具有强化氧化作用。实验结果表明:硫酸锰具有强化氧化作用,氯化铜通过化学反应除S~(2-),二氧化钛、氯化亚锡、硫酸高铈、三氧化二铁、三氧化钨、钨酸钠、五氧化二钒、三氧化二铬及活性炭没有强化氧化作用。在90℃、转速300 r/min、流量0.08 m3/h、反应时间60 min条件下,1.014 g/L的硫酸锰强化氧化除S~(2-)率达到100%。
The S ~ (2-) in the sodium aluminate solution by intensive oxidation was studied, and the substance that could enhance the oxidation of S ~ (2-) was selected and the concentration of the added substance was changed to verify whether it has the strengthening oxidation. The experimental results show that: manganese sulfate has enhanced oxidation, copper chloride by chemical reaction in addition to S ~ (2-), titanium dioxide, stannous chloride, cerium sulfate, ferric oxide, tungsten trioxide, sodium tungstate, Vanadium oxide, chromium oxide and activated carbon did not strengthen the oxidation. Under the conditions of 90 ℃, rotation speed of 300 r / min, flow rate of 0.08 m3 / h and reaction time of 60 min, 1.014 g / L manganese sulfate could be oxidized except S ~ (2-) up to 100%.