论文部分内容阅读
研究的目的是在电解沉积锌的过程中,降低赤铁矿法沉淀铁的投资。对于纯硫酸亚铁溶液,和同时含有硫酸锌以及硫酸锰、硫酸镁的溶液在不同温度、氧压及搅拌速度下的亚铁氧化成高铁的速度进行了测定。还测定了沉淀物的粒度。结果表明铁的沉淀速度是受亚铁氧化成高铁的速度所控制。氧化过程的首要因素是氧的浓度〔此处氧的浓度与氧压乘以搅拌速度的积成正比),其次是亚铁浓度。发现纯硫酸亚铁溶液的氧化速度比溶在不纯硫酸锌溶液中硫酸亚铁的氧化速度慢。从纯溶液中获得的结晶颗粒比不纯溶液中获得的大。试验结果指出:在180℃一下约十分钟的时闻朴早以伸翰氧化和沉淀。
The purpose of the study was to reduce the investment in hematite precipitation of iron during the electrolytic deposition of zinc. For pure ferrous sulfate solution and the solution containing both zinc sulfate and manganese sulfate and magnesium sulfate at different temperatures, oxygen pressures and stirring rates, the rate of ferrous oxidation to high iron was measured. The particle size of the precipitate was also determined. The results show that the precipitation rate of iron is controlled by the rate of oxidation of ferrous iron to high iron. The primary factor in the oxidation process is the concentration of oxygen [here the concentration of oxygen is proportional to the product of the oxygen pressure times the stirring rate, followed by the ferrous concentration. It was found that the oxidation rate of pure ferrous sulfate solution is slower than the oxidation rate of ferrous sulfate dissolved in the impure zinc sulfate solution. The crystalline particles obtained from pure solution are larger than those obtained in impure solution. Test results indicate that: at 180 ℃ for about ten minutes when Wen Park early John Day John oxidation and precipitation.