浅析艾士卡法测定煤中全硫的影响因素  

Influencing Factors for Determination of Total Sulfur in Coal by Askal Method

作　　者：郭丹丹[1] 杜鹏[1] 张航[1] 巨文军[1] 

机构地区：[1]黎明化工研究院,河南洛阳471000

出　　处：《化学推进剂与高分子材料》2011年第6期96-98,共3页Chemical Propellants & Polymeric Materials

摘　　要：艾士卡法是测定煤中全硫的仲裁方法。从升温速率、溶液体积、滴加速度、"陈化"和灰化5个方面分析和讨论了实验中的影响因素和解决措施。结果表明:升温过快、溶液体积过大、不经过"陈化"过程、灰化不彻底会使测定结果偏低,沉淀过程在不搅拌的情况下BaCl2溶液加入速度过快会使测定结果偏高。The Askal method is the arbitration method for determining total sulfur content in coal.The influencing factors and solving means in the experiments were analyzed and discussed from five aspects of heating rate,solution volume,dropping speed,＂aging＂ and ashing.The results show that the determined results are slightly smaller when the heating rate is too fast,the solution volume is too large,without ＂aging＂ and uncompletely ashing.The determined results are slightly bigger when the dropping speed of BaCl2 solution is too fast without stirring in the precipitating course.

关 键 词：艾士卡法 煤 全硫 升温速率 陈化 灰化 

分 类 号：TQ533.1[化学工程—煤化学工程]