摘要
本文用浮沉法及酸、碱和有机溶剂抽提方法探讨了小龙潭褐煤中As,Pb,Cr等元素的存在状态。结果说明,As主要是以有机结合状态存在,Cr有部分是与煤中腐植酸络合,Pb则主要为无机结合状态。
The forms of combination of As, Pb, Cr in Xiaolongtan coal was investigated by washability test, inorganic and organic solvent extract, The results show that As is organic association dominantly, contrary to As in bituminous. Cr is associated with humic matter partly, most of Pb is inorganic association.
出处
《煤炭转化》
CAS
CSCD
北大核心
1993年第2期86-89,共4页
Coal Conversion
关键词
褐煤
砷
铅
铬
结合状态
brown coal, As, Pb, Cr, forms of combination
