论文部分内容阅读
用Na_2SO_4代替NaC1再生的有关化学检验方法要比用NaC1再生麻烦得多,因为测定硫酸根含量的方法沒有象测定氯根那么容易方便,因此如何寻求测得硫酸根的快速方法对于指导生产尤为十分必要,但由于我们的水平有限,所提供的一些作法不一定对,仅供参考。 (一)清洗质量的检验: 对于清洗质量的鉴别,必须测得清洗后水中残存的硫酸根的含量,方能得出结论,但由于测定硫酸根的一般可靠方法是采用重量法,它耗费时间多,不能满足生产上的要求,我们是采用以下几种方法来检验的: (1)观察法:取清洗水50C.C.滴加1N HC1使溶液呈微酸性(PH=3.0),加热煮沸3—5分钟,取下趁热滴加5％BaC1_2溶液,边加边观察,是否有混浊现象产生,根据混浊程度和沉淀生成的数量多少来确定清洗效果。
Replacing NaC1 with Na2SO4 instead of NaC1 is more troublesome than regenerating with NaC1 because the method for determining sulfate content is not as easy as determining chloride, so the quick method for finding Sulphate is particularly useful for guiding production. Necessary, but because our level is limited, some of the practices provided may not be correct. They are for reference only. (I) Inspection of the cleaning quality: For the identification of the cleaning quality, the residual sulfate content in the cleaned water must be measured before conclusion can be drawn. However, since the general reliable method for determining sulfate is the weight method, it takes time. Many, can not meet the production requirements, we use the following methods to test: (1) observation method: take the washing water 50C.C. drop 1N HC1 so that the solution was slightly acidic (PH = 3.0), heating and boiling 3 to 5 minutes, remove the hot drop 5% BaC1 2 solution, add side to observe whether there is turbidity, according to the degree of turbidity and the number of precipitation to determine the number of cleaning effect.