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Home / Journal of The Chinese Ceramic Society, Volume 42, Number 2

Open Access Thermodynamics and Kinetics of Boron Mud Dissolution in Sulfuric Acid

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The raw material boron mud, as a solid waste in a borax factory in Dashiqiao, China, contains some minerals like olivine of 54.0% (in mass fraction, the same below), magnesite of 29.5%, and phlogopite of 5.6%.The thermodynamic analysis indicates that all the minerals in the boron mud powder can be dissolved in sulfuric acid, and the total reaction heat is150.81kJ/mol at 298.15K.The kinetics analysis of dissolving the boron mud powder at 313333 and 353 K for 0.54h reveals that the process of dissolving boron mud in sulfuric acid follows internal diffusioncontrol and chemical reactioncontrol procedures.

Keywords: boron mud; dissolution; kinetics; thermodynamics

Document Type: Research Article

Affiliations: School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China

Publication date: 01 February 2014

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  • Journal of the Chinese Ceramic Society (JCCS), published in Chinese and in English, is a comprehensive monthly periodical focused on the fields of inorganic and non-metallic materials. The main purpose of the JCCS is to report the latest creative achievements in research, production and design for ceramics, glass, cementing materials, refractory, artificial crystals and other non-metallic materials. JCCS is regarded as an important journal in inorganic and non-metallic materials sciences in China and has been awarded by China Association for Science and Technology. The full-text of papers in JCCS is also published by CNKI (China National Knowledge Infrastructure). JCCS is indexed in EI Compendex, CA( Chemical Abstracts) ,SA and Ж and more than 20 databases.
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