![]() ![]() ![]() When the temperature reached 450 ☌, CO gas was released and its level increased as the temperature rose. Al was present in a solid state with no gaseous products. The results indicated that no Al, C, H, S, or F elements were evident in the high-temperature liquid products obtained in a 50 ☌ to 1150 ☌ calcination temperature range. Therefore, heating was simulated using experimental data and the FactSage 7.0 thermochemical database to study the release of harmful Al-, C-, H-, S-, and F-containing elements when using carbide slag to prepare lightweight ceramsite. The real-time monitoring of the released gases is challenging under laboratory conditions while preparing large quantities of ceramsite. When preparing lightweight ceramsite using carbide slag, trace amounts of toxic elements are released into the atmosphere due to high-temperature calcination, posing a significant risk to the environment. ![]()
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