The thermal decomposition process of calcium sulfite.
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概要
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The thermal decomposition of calcium sulfite at temperatures below 880 °C in an argon stream was examined. Also, the reaction between calcium sulfate and calcium sulfide, which were formed during the decomposition process of calcium sulfite, was examined. The thermal decomposition process of calcium sulfite can be represented as follows: on heating calcium sulfite, the reaction, CaSO<SUB>3</SUB>→CaO+SO<SUB>2</SUB>, occurs above about 600 °C. Above about 680 °C, the reaction, 4CaSO<SUB>3</SUB>→3CaSO<SUB>4</SUB>+CaS, occurs besides the above reaction. Furthermore, the reaction between calcium sulfate and calcium sulfide which are formed during the decomposition process of calcium sulfite, 3CaSO<SUB>4</SUB>+CaS→4CaO+4SO<SUB>2</SUB>, occurs above about 780 °C.
- 公益社団法人 日本化学会の論文
著者
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Saeki Yuzo
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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Matsuzaki Ryoko
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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Masumizu Hagio
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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Murakami Nagisa
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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