电导法快速测定黑生料及煤中碳含量  

Rapid Determination of Carbon Content in BlackRae Mix and Coal by Conduclometric Method

作　　者：于京华[1] 崔瑞珍 王秀芳[1] 李春 

机构地区：[1]山东建材学院应用化学系

出　　处：《分析试验室》1994年第4期62-62,73,共2页Chinese Journal of Analysis Laboratory

摘　　要：本文利用碱溶液吸收ＣＯ＿２后电导率的变化值与吸收的ＣＯ＿２含量成正比这一关系来测定生料中的含碳量。５％ＫＯＨ溶液为最佳的吸收溶液。选择了最佳实验条件，在浓Ｈ＿２ＳＯ＿４介质中，煤或黑生料与氧化剂共热产生的ＣＯ＿２由ＫＯＨ溶液吸收。通过测定ＫＯＨ溶液吸收ＣＯ＿２前后电导率的变化值来确定含碳量。对标准煤样及黑生料进行了测定，得到了较为满意的结果。The conditions of determining the carbon contentin black raw mix and coal by conductometric methodwere studied. It was found that 5%KOH solution wasthe best absorbing solution and the best conditions ofthe experiments were selected.In the mediurn of con-centrated H_2SO_4,coal or black raw mix was heated to-gether with oxidizers to generate CO_2,the carbon con-tent was then determined by conductivity method.Theresults obtained are satisfactory.

关 键 词：电导法 煤 碳 黑生料 测定 

分 类 号：TQ533.1[化学工程—煤化学工程]