Influence of Chlorine on the Fate of Pb and Cu during Clinkerization
| Autor: | Weiting Xu, Bin Zhang, Tongsheng Zhang, Anna Bogush, Jiangxiong Wei, Qijun Yu, Julia A. Stegemann, Zeng Zhengxiang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Cement
Thermogravimetric analysis Materials science Volatilisation General Chemical Engineering Metallurgy Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010501 environmental sciences Raw material 021001 nanoscience & nanotechnology Clinker (cement) 01 natural sciences law.invention Cement kiln Fuel Technology chemistry law Chlorine 0210 nano-technology Atomic absorption spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Energy & Fuels. 32:7718-7726 |
| ISSN: | 1520-5029 0887-0624 |
| Popis: | The fate of heavy metals during clinkerization is of crucial significance to the utilization of solid waste as fuels and raw materials in cement kiln producing clinker. A ternary system of clinker–heavy metal–chlorine was developed that is more coincident with the condition of coprocessing of solid waste in cement kiln. The main goal of this study was to investigate the relationships among chlorine, volatilization and solidification of Cu/Pb, and the mineral phases of the clinker during clinkerization. The AlCl3·6H2O (chlorine source) and PbO/CuO were mixed with cement raw meal in appropriate ratios to produce coprocessed clinkers. The volatilization and solidification of Pb and Cu were investigated experimentally using a combination of atomic absorption spectrometry, electron probe microanalysis, scanning electron microscopy with energy-dispersive X-ray spectroscopy, optical microscope, and thermogravimetric and X-ray diffraction quantitative analyses. The volatilization ratios of Pb and Cu increased up ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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