| 摘要 |
PURPOSE:To remove effectively silica contained in water with a simple installation and operation by bringing the thioether polymer expressed by the specified general formula into contact with water contg. silica and separating the polymer phase and the water phase. CONSTITUTION:The thioether polymer expressed by the formula [in which, A, B may be the same or different and denote respectively -H, -SH, -X (X denotes halogen atom), n, m denote respectively the numbers satisfying 4<=m<=2, 5<=n<= 200] is charged into the silica-contg. water stored in a tank or the silica-contg. water flowing in a pipe and the water is stirred and mixed. The amt. of the thioether polymer may be increased or decreased according to the concn. of silica. The contact time between said polymer and the silica-contg. water is such time when the concn. of the silica in the water after the treatment is <=200ppm.
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