BAO Ji-qing 1,2, SHEN Xiao-fang1, XU Jie2, YI Wei-pei2
(1. School of Environmental and Safety Engineering of Changzhou University, Changzhou 213164, China;
2. School of Biological and Chemical Engineering of Jiaxing University, Jiaxing 314001, China)
Abstract: In order to achieve the performance targets of the yellow iron oxide prepared from acidic iron chloride etching solution containing nickel for the purpose of resource recycling, research on the influence of the modifiers on the yellow iron oxide was conducted. The impacts of factors including: modifier species, modifier dosage, modification pH, temperature and time on toil-wet degree of the yellow iron oxide were investigated. Analysis including pigments performance analysis, infrared spectroscopy, thermal analysis and scanning electron microscope for yellow iron oxide before and after the optimal conditions of modification were also conducted. Results show that under the feasible conditions, the modifier reagent is sodium dodecastyle benzene sulfonate with, the modifier dosage of 7%, the modification pH of 3.5, at the modification temperature of 30 ℃, for 30min, and the oil-wet degree of 54.7%. The infrared spectroscopy and thermal analysis show that odium dodecastyle benzene sulfonate combines with the nanometer yellow iron oxide in the way of chemical bonding with the coating amount of about 5.4%, and then the nanometer yellow iron oxide has the lipophilic hydrophobic properties.
Keywords: surface modification; nano-iron yellow; lipophilic degree; utilization
Email: baojiqing997441@sina.com
ACTA MINERALOGICA SINICA Vol. 35, No. 3, 2015, Page 293-298
