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Phase Composition Analysis of Calcined Dolomite by X-ray Diffraction (XRD) |
Received:September 15, 2011 Revised:December 30, 2011 |
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DOI:10.3969/j.issn.2095-1035.2012.01.0006 |
KeyWord:XRD; burnt dolomite; substance composition of materials |
Author | Institution |
JIANG Xiaoguang |
鲅鱼圈出入境检验检疫局,辽宁 营口 |
WANG Ling |
鲅鱼圈出入境检验检疫局,辽宁 营口 |
CHU Gang |
辽宁石油化工大学,辽宁 抚顺 |
HU XiaoJing |
辽宁出入境检验检疫局,辽宁 大连 |
LI Weigang |
鲅鱼圈出入境检验检疫局,辽宁 营口 |
LIU Mingyang |
辽宁出入境检验检疫局,辽宁 大连 |
WANG Yanjun |
鲅鱼圈出入境检验检疫局,辽宁 营口 |
LIN Zhong |
鲅鱼圈出入境检验检疫局,辽宁 营口 |
SHENG Xiangjun |
辽宁出入境检验检疫局,辽宁 大连 |
CHEN Yu |
鲅鱼圈出入境检验检疫局,辽宁 营口 |
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Abstract: |
The phase analysis of dolomite ore and the calcined dolomite ore resulting from calcination of different temperatures were conducted using X-ray diffraction (XRD) technique. The main phase of dolomite ore is CaMg(CO3)2(98.6 wt%) and the impurity phase is SiO2 (1.4 wt%). The main phase CaMg(CO3)2 did not decompose after dolomite ore was calcined at 300 and 500℃ for 2 hours. At 750℃, the CaMg(CO3)2 partly decomposed and formed calcium carbonate and magnesia. At 1000℃, the CaMg(CO3)2 completely decomposed to magnesia and calcium oxide. |
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