Method of Preparing Silica Absorbents

Authors

O. R. SweeneyFollow
Frederic D. Pfeffer
Arthur L. Redstone

Document Type

Research

Abstract

In the manufacture of phosphate fertilizer, compounds of fluorine are evolved. The amount of fluorine occurring in the phosphate rock used each year in the United States is about 8000 tons. It is proposed to utilize this material industrially. If the tower gases are passed through the water, reaction 3 SiF₄ + 3 H₂O → H₂Sio₃ + 2 H₂SiF₆ takes place. The solution is treated to recover the silicon fluoride as MgSiF₄. The precipitated silicic acid is filtered out, dried and has good adsorptive properties. The adsorption value depends upon the acidity and other conditions. The silica obtained has better adsorption properties than "Silica Gel".

Publication Date

1924

Journal Title

Proceedings of the Iowa Academy of Science

Volume

31

Issue

1

First Page

290

Last Page

290

Copyright

©1924 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Sweeney, O. R.; Pfeffer, Frederic D.; and Redstone, Arthur L. (1924) "Method of Preparing Silica Absorbents," Proceedings of the Iowa Academy of Science, 31(1), 290-290.
Available at: https://scholarworks.uni.edu/pias/vol31/iss1/85