Paper Titles
Electronic Structure Study of Ni/Al2O3/Ni from First-Principles
p.2540
Assessment of the Surface Morphology of Diamond Film Based on Fractal
p.2543
Effects of Ceramic Fillers on Light Reflectance and Arc Resistance of PTFE for Circuit Breaker
p.2546
Preparation of Yellow Color Pearlescent Pigments of CeO2-Mica
p.2549
Study of Carbonizing Processes for Sintered Dolomite
p.2552
Preliminary Analysis of the Citations to Articles Published in Two Academic Journals
p.2556
Grain Characteristics of Nanocrystalline ZrO2 Powders
p.2558
Analysis of Capacity to Make Profits in Chinese Listed Ceramic Companies
p.2562
Structural Micro-Layered Ceramics with Surfaces under Tension and Compression with Increasing Apparent Fracture Toughness
p.2564

Study of Carbonizing Processes for Sintered Dolomite

Article Preview

Abstract:

It is the easy and widely used way to make light calcium carbonate and magnesium carbonate from dolomite by carbonizing process. During this process, the dolomite is calcined at different temperature, from 700°C to 950°C to get the mixture including either calcium carbonate and magnesia or calcia and magnesia. Then the mixture is blended with water in different temperature from room temperature to 80°C. As a result, it is supposed to get calcium hydroxide and magnesium hydroxide, but XRD analysis reveals that it is not accord with the theory. Magnesium hydroxide can not be obtained during this reaction. After the carbonization process, the calcium carbonate and a kind of mixture which is composed with different crystal phase of Mg5(CO3)4(OH)2[H2O]4 have been produced, instead of magnesium carbonate. The magnesia is gotten when the mixture is calcined at 450~750°C.

You might also be interested in these eBooks
High-Performance Ceramics IV View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Pages:

2552-2555

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.2552

Citation:

Cite this paper

Online since:

April 2007

Authors:

Jing Hua Xue, Min Fang Han, Qing Yun Wang

Keywords:

Calcium Carbonate, Carbonization, Dolomite, Magnesium Carbonate

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] Z. Liu, S. Chi and J. Zhu: Comprehensive Utilization of Mineral Products No. 2 (2003), p.27.

Google Scholar

[2] Q. Wang and C. Shan: Chemical Mineral and Processing No. 3 (2002), p.1.

Google Scholar

[3] W. You: Fujian Chemical Industry No. 4 (2000), p.43.

Google Scholar

[4] L. Cao, D. An, Z. Yang, J. Xiao: Hubei Chemical Industry No. 1 (2003), p.23.

Google Scholar

[5] W. Xu, A. Xuan: Hubei Chemical Industry No. 4 (2000), p.34.

Google Scholar

[6] X. Zhou: Colored Metal Vol. 43.

Google Scholar

[2] (1991), p.49.

Google Scholar

[7] X. Zhou: Inorganic Salts Industry No. 5 (1996), p.13.

Google Scholar

[8] G.L. Smithson et al.: Ind. Eng. Chem. Process Des. Develop Vol. 12 (1973), p.99.

Google Scholar

[9] C. Zhang, P. Li: J. Polytech. Univ. Zhengzhou Vol. 18.

Google Scholar

[4] (1997), p.40.

Google Scholar