Rapid identification of copper smelter slag for solid waste
ZHANG Qi1, ZHANG Yun-chun2, GONG Fan-han3, XIAO Da-hui3 YUE Da-lei3, TANG Zhi-kun3, SONG Wu-yuan*1, 3
1. South China University of Technology, Guangzhou 510641, China;2. Amway China Co. Ltd., Guangzhou 510730, China; 3. Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China
Abstract：To identify whether an import mineral slag was a solid waste subject to customs control mainly relied on the industrial standard-“General rules for identification of import mineral slags” (SN/T 3107-2012). The characteristic analysis like visual inspection and main phase with the general rules could only meet the requirements for initial screening of common slag samples. For complex “uncommon” slag samples, an accurate and fast method to identificate whether a complex slag sample was a solid waste was achieved by addition of X-ray diffraction and X-ray fluorescence spectrometry in the application of sample analysis, detailed analysis of the reaction mechanisms in the copper smelting process, and reference to the common FeO-Fe2O3-SiO2 copper smelter slag phase diagram and the “Solid waste attribute identification case studies”.
Kloprogge J T, Duong L V, Weier M. Nondestructive identification of arsenic and cobalt minerals from Cobalt city, Ontario, Canada: arsenolite, erythrite, and spherocobaltite on pararammelsbergite[J]. Applied Spectroscopy, 2006, 60 (11):1293-1299.
