Characterization, correlation and kinetics of dolomite samples as outlined by thermal methods

被引:19
作者
Koek, M. V. [1 ]
Smykatz-Kloss, W. [2 ]
机构
[1] Middle E Tech Univ, Dept Petr & Nat Gas Engn, TR-06531 Ankara, Turkey
[2] Univ Karlsruhe, Mineral Inst Univ, D-76131 Karlsruhe, Germany
关键词
chemical structure; decomposition; dolomite; thermal analysis; X-ray;
D O I
10.1007/s10973-007-8560-3
中图分类号
O414.1 [热力学];
学科分类号
摘要
In this study, the decomposition behavior of four dolomite samples of different origin was studied by X-ray diffractometer and simultaneous TG-DTA experiments. Three different decomposition regions were determined known as dehydration of inter-particle water, formation of MgO and calcite and decomposition of calcite. Kinetic analysis of these decomposition regions was analyzed and the related activation energies are determined. It was observed that the activation energies were in the range of 48-137 kJ mol(-1).
引用
收藏
页码:565 / 568
页数:4
相关论文
共 21 条
[1]  
Avila I, 2006, QUIM NOVA, V29, P1244
[2]   The heat treatment and particle size effects in the thermal decomposition of dolomite for separation of constituents [J].
Bogahawatta, VTL ;
Abdul-Jaleel, A ;
Behbehani, M .
TRANSACTIONS OF THE INSTITUTIONS OF MINING AND METALLURGY SECTION C-MINERAL PROCESSING AND EXTRACTIVE METALLURGY, 2004, 113 (02) :111-117
[3]   THE DECREPITATION OF DOLOMITE AND LIMESTONE [J].
DOLLIMORE, D ;
DUNN, JG ;
LEE, YF ;
PENROD, BM .
THERMOCHIMICA ACTA, 1994, 237 (01) :125-131
[4]   Non-isothermal DSC and TG/DTG analysis of the combustion of silopi asphaltites [J].
Kok, M. V. .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2007, 88 (03) :663-668
[5]   Oil shale kinetics by differential methods [J].
Kok, M. V. ;
Iscan, A. G. .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2007, 88 (03) :657-661
[6]   Effect of clay on crude oil combustion by thermal analysis techniques [J].
Kök, MV .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2006, 84 (02) :361-366
[7]   Kinetics of crude oil combustion [J].
Kök, MV ;
Acar, C .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2006, 83 (02) :445-449
[8]   Temperature-controlled combustion and kinetics of different rank coal samples [J].
Kök, MV .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2005, 79 (01) :175-180
[9]   Combustion characteristics of lignite and oil shale samples by thermal analysis techniques [J].
Kök, MV ;
Pokol, G ;
Keskin, C ;
Madarász, J ;
Bagci, S .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2004, 76 (01) :247-254
[10]  
Kök MV, 2003, OIL SHALE, V20, P57