胜利褐煤在NaOCl水溶液中的氧化  

Oxidation of Shengli Brown Coal in Aqueous NaOCl Solution

作　　者：柳方景[1] 魏贤勇[1] 朱影[1] 路瑶[1] 宗志敏[1] 

机构地区：[1]中国矿业大学煤炭加工与高效洁净利用教育部重点实验室,江苏徐州221008

出　　处：《化工时刊》2011年第7期31-36,共6页Chemical Industry Times

基　　金：国家973计划项目(2011CB201302);国家自然科学基金重点项目(20936007);国家自然科学基金(51074153);国家自然科学基金创新研究群体项目(50921002);江苏省普通高校高新技术产业发展重点项目(JHB05-33);中国矿业大学中央高校基本科研业务费专项资金(理科基金)(2010ZDP02B03和2010LKHX09)

摘　　要：在温和条件下用NaOCl水溶液氧化胜利褐煤,结果NaOCl水溶液能将胜利煤中大部分有机质转化为小分子水溶性化合物。氧化所得混和物依次用乙醚和乙酸乙酯萃取,经重氮甲烷酯化后用GC/MS进行分析,结果表明所得化合物主要为一元酸、二元酸和苯甲酸类化合物。其中苯甲酸类化合物含量最高,其次是一元酸。氯代短链烷酸的含量在一元酸中占的比例较高,而苯甲酸类化合物中苯四甲酸的含量最高。Shengli brown coal was subject to aqueous NaOCI solution oxidation under mild conditions. The most of organic matter in Shengli coal was converted into small molecule water - soluble species. The reaction mixture was sequentially extracted with ethylether and ethyl acetate followed by GC/MS analysis after esterified with CH2N2. The results showed that alkanoic acids, alkane -α, ω -dicarboxylic acids and benzene polycarboxylic acids were main products from the reaction. Benzene polycarboxylic acids were the richest species followed by alkanoic acids. Short - chain chloro - substituted alkanoic acids accounted for a large proportion, while benzenetetracarboxylic acids were predominant in benzene polycarboxylic acids.

关 键 词：胜利煤 NAOCL 氧化 GC/MS分析 

分 类 号：TQ531[化学工程—煤化学工程]