Open AccessStudy on harmless and resource utilization of spent cathode carbon washing process
Author(s) -
Pengkuo Zhi,
Yujing Ou,
Chunlei Li,
Yiru Wang,
Dan Zhao
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/467/1/012177
Subject(s) - hazardous waste , cathode , carbon fibers , waste management , scanning electron microscope , raw material , materials science , metallurgy , environmental science , chemistry , composite material , engineering , organic chemistry , composite number
Spent cathode carbon is the main hazardous waste in the electrolytic aluminum industry, which seriously pollutes the environment. In this paper, the spent cathode carbon is treated by the water washing process to change it from hazardous waste to solid waste, so that the environment is protected and NaF is also utilized. The optimum conditions were determined by experiment: t=50 min, T=80°C, L/S = 20:1. The raw materials and the washed products were characterized by elemental analysis, X-ray fluorescence (XRF), X-ray diffraction (XRD), and scanning electron microscopy (SEM).