论文部分内容阅读
近年来,人们用人工合成的方法制成了一种“砂子”。利用这种砂子,可以除去天然水中杂质,得到纯度很高的水。这种高纯度的水是制药工业、研究工作中不可缺少的。在制糖工作中,利用这种砂子可以脱色和去除杂质,提高产量4—11％。利用这种砂子,可以从海水中提取贵金属(如金等),可以分离性质十分相似、很难分离的稀有元素。还可以利用它从工业企业的废水中回收有用的金属,例如从电影制片厂里的废水中可以提取银,从人造丝工厂的废液中提取铜等。这种砂子的功用在不断地扩大着,在近几年来,它已经成为国防、工业、医药、分析、研究工作等各方面不可缺少的一个重要工具了。
In recent years, people have made a “sand” by artificial synthesis. With this kind of sand, impurities in natural water can be removed and high purity water can be obtained. This high-purity water is indispensable for the pharmaceutical industry and research work. In the sugar work, the use of this sand can decolorize and remove impurities and increase production by 4 to 11%. Using this sand, precious metals (such as gold) can be extracted from seawater, and rare elements that are very similar in nature and difficult to separate can be separated. It can also be used to recover useful metals from wastewater from industrial companies, such as extracting silver from waste water from film studios, and extracting copper from effluent from rayon factories. The function of this sand is constantly expanding. In recent years, it has become an indispensable and important tool for defense, industry, medicine, analysis, and research work.