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本文着重介绍动态条件下,MnO_2粉末对水溶液中二价铁离子的吸附作用及其影响因素。还用MnO_2——活性炭柱分离了一些无机和有机物中的铁。操作简便,质量稳定,被提纯物的收率高。一、MnO_2对Fe~(2+)的静态和动态吸附为了测定MnO_2粉末在静态和动态条件下对Fe~(2+)的吸附能力,进行了以下的两组平行实验。 1.静态吸附在1000毫升的烧杯中,放进1000毫升的蒸馏水和10毫克Fe~(2+),将溶液的pH调至5.5,再加入0.5克特制的MnO_2粉末,充分搅拌半小时,然后静置。接着每隔半小时测定一次烧杯中上层清液中的残留铁量,具体数据列于表1。
This article focuses on the dynamic conditions, MnO 2 powder on the adsorption of ferrous ions in aqueous solution and its influencing factors. Also used MnO_2 - activated carbon column separation of some inorganic and organic iron. Easy to operate, the quality is stable, the yield of the purified product is high. I. Static and dynamic adsorption of Fe ~ (2+) by MnO_2 To determine the adsorption capacity of Fe ~ (2+) in MnO_2 powder under static and dynamic conditions, the following two groups of parallel experiments were carried out. 1. Static adsorption In a 1000 ml beaker, add 1000 ml of distilled water and 10 mg of Fe2 +, adjust the pH of the solution to 5.5, add 0.5 g of specially prepared MnO2 powder and stir well for half an hour, then Set aside. The amount of iron remaining in the supernatant in the beaker was then measured every half an hour. The specific data is given in Table 1 below.