ORALS

SESSION: Non-ferrousTueAM-R7	6th Intl. Symp. on Sustainable Non-ferrous Smelting and Hydro/Electrochemical Processing
Tue Nov, 6 2018 / Room: Pontal (50/2nd)
Session Chairs: Zhigang Zak Fang; Vasiliy Kryukovskiy; Session Monitor: TBA

12:10: [Non-ferrousTueAM03]
High Value-added Products Development From Solid Wastes
Cang Da Qiang¹ ; Lingling Zhang¹ ; Yanbing Zong¹ ; Yu Li¹ ; Xiaoming Liu¹ ; ¹University of Science and Technology Beijing, Beijing, China;
Paper Id: 347 [Abstract]

New products with higher value for construction materials and industrial utilization (e.g. ceramic, glass-ceramic, inorganic fiber, water permeable brick etc.) were developed from different solid wastes from different industrial sectors and municipalities, such as: iron and steel slag, coal ash, red mud, slurry, mining taillings etc. Some of them were pre-disposed in high temperature liquid phase (changing the composition of the slag in order to use the sensible heat from it) and some were disposed in normal temperature. The market oriented green products composition design was made by Faxsage software, and the preparation process was finalized by different experiments in LAB. The properties of the products were tested according to the National Standard with different instruments. The results showed that the higher value-added products could be made from different solid wastes with higher strength and economic and environmental profit. In particular, the harmful elements such as heavy metals could be sealed in the glass phase and the crystal structure, so that the heavy metal leakage rate is a an acceptable standard for the National Standard. One of the products, ceramic preparation process from solid wastes, and its properties were introduced in this paper.