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我们在上海桃浦化工厂氢氧化钾车间劳动、学习时,看到化盐工段有许多大大小小的圆铁桶和水泥池,虽然设备简单,几只桶、几个水池却包含有丰富的化工知识和深刻的哲学道理。化盐工段的生产有两个任务,即化盐和精制。把固体氯化钾(KCl)溶解为盐水而且除去里面所含的钙、镁、硫酸根等杂质。看来是比较简单的,加点水溶解,加点东西使那些杂质转变为难溶物质沉淀下来即可。但精制以后盐水浓度大小和去杂多少,对下一步的电解生产以及设备维护都有很大影响。
We work in Shanghai Taopu chemical plant potassium hydroxide workshop, study, saw the salt section has many large and small round barrel and cement pool, although the equipment is simple, a few barrels, several pools contain a wealth of chemical industry Knowledge and profound philosophical truth. Salt production section has two tasks, namely salt and refined. The solid potassium chloride (KCl) dissolved in saline and remove the inside contained calcium, magnesium, sulfate and other impurities. Seems to be relatively simple, add some water to dissolve, add something to make those impurities into insoluble matter precipitation can be. However, the concentration of refined brine and the amount of impurities to the next step of electrolytic production and equipment maintenance have a great impact.