Sr speciation in producing SrCO3 with celestite |
| |
| Authors: | Chenglun Liu Li Zhang Longjun Xu Zhimin Su Taiping Xie Yuan Wang |
| |
| Institution: | 1. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
2. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China
|
| |
| Abstract: | Strontium speciation transferring in strontium residue and mixing strontium ore are investigated with extracting experiment, X-ray powder diffraction (XRD), X-ray fluorescence spectrometer (XRF) and Atomic Absorption Spectroscopy (AAS). The results show that there are strontium carbonate, strontium sulfate, strontium sulfide, and a little amount of strontium silicate and strontium ferrite in strontium residue. Impurities in strontium residue mainly contain carbonate and oxide of calcium, iron, magnesium and aluminum etc. The amount of strontium sulfide in strontium residue is larger than that in strontium ore. And a little strontium silicate and strontium ferrite are found in strontium ore. It is concluded that acid soluble method is used firstly in the process of producing strontium carbonate from mixing strontium ore. In addition, mechanical smash method and surface active treatment to strontium samples are beneficial to the ratio-leaching increase of strontium. The research achievement helps to save energy and decrease pollutants emission in strontium processing industry. |
| |
| Keywords: | strontium speciation celestite strontium residue strontium ore impurity |
| 本文献已被 维普 SpringerLink 等数据库收录！ |
|
