Studies on the Realationship between the Speciation Distribution and Si/Fe Ratio of Poly-Silica-Ferric-Chloride

Jian Shi; Quan Liu; Dong Sheng Wang

doi:10.4028/www.scientific.net/AMR.156-157.1339

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 156-157Studies on the Realationship between the...

Studies on the Realationship between the Speciation Distribution and Si/Fe Ratio of Poly-Silica-Ferric-Chloride

Abstract:

Interactions between ferric species and silica have been shown to play a large part in the coagulation of suspensions. These effects are quite distinct from those associated with polymeric or colloid silica. The interaction of monosilicic acid with Fe ions has been discussed in this paper. Compared with traditional iron salt, poly-silica-ferric-chloride (PFSC) is characterized by having higher molecular weight, less positive charge, lower Feb and higher Fec. In addition, the Si/Fe is higher and the Silica is higher and Silicc is lower. With increasing Si/Fe ratio the effective diameter of PFSC increases. Along with the increase of Si/Fe ratio, more complicated polymers are formed and the particle size distribution is broadened. Resluts show that some co-polymerized species or aggregates between silica and Fe( ) polymers are formed.

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Advanced Manufacturing Technology, ICAMMP 2010

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Periodical:

Advanced Materials Research (Volumes 156-157)

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1339-1342

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.156-157.1339

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Online since:

October 2010

Authors:

Jian Shi, Quan Liu, Dong Sheng Wang

Keywords:

Light Scattering Goniometer, Silica, Species Distribution, Timed Complexation Spectroscopy Method

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