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Huang J.,Guizhou R and nter on Modern Materials | Huang J.,Guizhou Institute of Metallurgical and Chemical Engineering | Ding Y.F.,Guizhou R and nter on Modern Materials | Su X.D.,Guizhou R and nter on Modern Materials | And 4 more authors.
Advanced Materials Research | Year: 2014

The Pb-Ag-Ca alloy anode with surface passivation was applied in industrial production of zinc electrowinning. The application situation was investigated by detection and tracking more than 3 months. The results were analyzed by comparison with the data acquired from the production using the reference anodes without surface treatment. The results showed that using the anode with surface passivation can increase zinc yield, reduce Pb content in zinc product, prolong the anode life by improving the corrosion resistance, and then reduce the production costs. © (2014) Trans Tech Publications, Switzerland. Source


Peng Y.,Guizhou University | Nie D.,Guizhou Institute of Metallurgical and Chemical Engineering | Xue T.,Guizhou Institute of Metallurgical and Chemical Engineering
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | Year: 2011

A series of copper-silver bimetallic powder was prepared by a chemical replacement method. In this process, ionic masking agent was added to eliminate copper ammonia complex ions adsorption on copper powder surface, which realizes silver continuous coating on the copper powder surfaces. The masking mechanism and the main influencing factors were analyzed. Besides that, TEM, TGA and XRD were used to characterize the Cu-Ag bimetallic powder. Results show that the copper-silver bimetallic powder with the ionic masking agent is of a continuous coating type structure, which has good dispersity, effectively improving antioxidation properties of the copper powder. Copyright © 2011, Northwest Institute of Nonferrous Metal Research. Source


Xue A.,Guizhou Institute of Metallurgical and Chemical Engineering | Nie D.-P.,Guizhou Institute of Metallurgical and Chemical Engineering | Xue T.,Guizhou Institute of Metallurgical and Chemical Engineering | Geng J.-R.,Guizhou Institute of Metallurgical and Chemical Engineering | And 2 more authors.
Xiandai Huagong/Modern Chemical Industry | Year: 2011

A defluorination technique for high fluoride-containing iodine solution is discussed in this paper. Adding lime and aluminum salts is an effective method to treat iodine solution with 600-750 mg/L fluorine, and orthogonal experiments are arranged to probe into the optimum technology conditions. Under the condition of pH=7, 50 g/L of aluminum salts, 5 g/L of calcium salts, deposited for 3 hours, the content of fluorine in iodine solution can lower to below 10 mg/L. Source

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