A kind of activity seed used for the precipitation of the sodium-aluminate liquor

被引:0
|
作者
Li, DF [1 ]
Bi, SW [1 ]
Yang, YH [1 ]
Fu, GF [1 ]
Wang, XH [1 ]
Liu, ZZ [1 ]
Jiang, XK [1 ]
Jiang, XM [1 ]
机构
[1] Northeastern Univ, Dept Nonferrous Met, Shenyang 110006, Peoples R China
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The activity of seed is one of the most important factors affecting the precipitation of sodium-aluminate liquor. To increase the activity of seed, the industrial aluminum hydroxide is soaked by sulfuric acid, and then used as the seed of the precipitation of sodium aluminate. It is demonstrated that this kind of seed has the ability to promote the precipitation. The physical properties of the industrial Al(OH)(3) and the seed soaked by sulfuric acid solution are measured, and their appearance features are analyzed by scanning electron microscopy. It is found that the reason raising the seed's activity is the increase of the amount of acid matrix on the seed's surface.
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页码:97 / 100
页数:4
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