文献类型：期刊文献

中文题名：微波-化学方法除去原煤无机硫的穆斯堡尔谱研究

英文题名：M(?)SSBAUER SPECTRUM STUDY OF COAL DESULFU RIZATION WITH MICROWAVE-CHEMICAL TREATMENT

作者：翁斯灏[1];王杰[2]

机构：[1]华东师范大学物理系,上海200062;[2]华东化工学院能源化工系

年份：1993

卷号：13

期号：2

起止页码：233

中文期刊名：环境科学学报

外文期刊名：Acta Scientiae Circumstantiae

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSSCI:【CSSCI1998】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：原煤;辐照;酸洗;脱硫;穆斯堡尔谱

外文关键词：microwave irradiation, acid treatment,desulfurization, coal.

摘要：采用^(17)Fe穆斯堡尔谱学方法研究原煤中无机硫的形态和微波-化学方法脱硫的机理和规律.结果表明,煤中无机硫主要以黄铁矿形式存在.低铁硫酸盐则是原煤风化程度的一种表征;微波选择性介质加热,导致煤中黄铁矿与煤组分进行原位热化学反应,产生能溶于稀盐酸的铁硫化合物Fe_(1-x)S_x(0Mossbauer effect was used to study the transformation of Fe-S compounds in coal before and after microwave irradiation and chemical treatment. The result for phase analysis shows that pyrite is the dominant form of inorganic-sulfur in the coal investigated, and ferrous sulfate FeSO4 is an indication of weathering. The selective dielectric heating of microwave energy can give rise to thermo-chemical in-situ reactions between pyritic sulfur and the neighboring reactive compounds present in coal,and can convert pyrite which is insoluble in HC1 to pyrrhotite and/or troilite which are soluble in HC1. An increase of the irradiation time followed by a 5% HC1 treatment can remove the majorty of inorganic-sulfur in coal.