引言根据国外文献的报导,用离子交换剂分离阳离子和阴离子的方法,已应用在煤(煤焦)中硫及氯含量的测定。此法的优点是简化了测定的操作,避免了在应用经典方法时一系列繁琐的操作,所得的结果准确可靠,是一个又快、又好、又省的方法。原理此法的要点是:将煤(焦)样用艾氏法处理后,使其中所含的硫及氯全部变成水可溶性的盐类。以水浸取残渣后,将所得的溶液通过离子交换柱, Introduction According to reports in foreign literature, the cation and anion separation methods using ion exchangers have been applied to the determination of sulfur and chlorine in coal (char). This method has the advantage of simplifying the determination of the operation, avoiding a series of cumbersome operation in the application of classical methods, the results obtained are accurate and reliable, is a fast, good, and provincial method. Principle The main point of this method is: After the coal (coke) sample is treated by Ehrlich’s method, all the sulfur and chlorine contained therein become water-soluble salts. After leaching the residue with water, the resulting solution was passed through an ion exchange column,