The manufacturing technology of high purity and ultra fine zinc oxide powder,leaching out from zinc oxide mineral by the sulfuric acid,purifying of leaching liquor,synthesizing basic zinc carbonate,cleansing,drying an...The manufacturing technology of high purity and ultra fine zinc oxide powder,leaching out from zinc oxide mineral by the sulfuric acid,purifying of leaching liquor,synthesizing basic zinc carbonate,cleansing,drying and calcining was studied.Many condition tests were used to determine the optimum technology process.The zinc oxide powder obtained was tested by chemical composition analysis and construction analysis.The results show that the size of zinc oxide powder,the purity and the specific surface area were all better than the required standard.展开更多
The determination of trace impurities in high purity zinc oxide by high resolution inductively coupled plasma mass spectrometry （ HR-ICP-MS ） was investigated. To overcome some poteutially problematic spectral iuter...The determination of trace impurities in high purity zinc oxide by high resolution inductively coupled plasma mass spectrometry （ HR-ICP-MS ） was investigated. To overcome some poteutially problematic spectral iuterference, measurements were acquired in both middle and high resolution modes. The matrix effects due to the presence of excess HCl and zinc were evaluated. The optimum conditions for the determination were tested and discussed. The standard addition method was employed for quantitative analysis. The detection limits ranged from 0.02μg/ g to 6 μg/ g depending on the elements. The experimental resalts for the determination of Na, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Mo, Cd, Sb and Pb in several high purity zinc oxide powders were presented.展开更多
文摘The manufacturing technology of high purity and ultra fine zinc oxide powder,leaching out from zinc oxide mineral by the sulfuric acid,purifying of leaching liquor,synthesizing basic zinc carbonate,cleansing,drying and calcining was studied.Many condition tests were used to determine the optimum technology process.The zinc oxide powder obtained was tested by chemical composition analysis and construction analysis.The results show that the size of zinc oxide powder,the purity and the specific surface area were all better than the required standard.
文摘The determination of trace impurities in high purity zinc oxide by high resolution inductively coupled plasma mass spectrometry （ HR-ICP-MS ） was investigated. To overcome some poteutially problematic spectral iuterference, measurements were acquired in both middle and high resolution modes. The matrix effects due to the presence of excess HCl and zinc were evaluated. The optimum conditions for the determination were tested and discussed. The standard addition method was employed for quantitative analysis. The detection limits ranged from 0.02μg/ g to 6 μg/ g depending on the elements. The experimental resalts for the determination of Na, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Mo, Cd, Sb and Pb in several high purity zinc oxide powders were presented.
