Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-28T17:53:00.092Z Has data issue: false hasContentIssue false
  • English
  • Français

The texture and surface area of kieselguhrs after various treatments

Published online by Cambridge University Press:  14 March 2018

S. Teichner  and
E. Pernoux
Get access

Extract

The kieselguhrs or diatomaceous earths are composed essentially of more or less well crystallised silica, as well as a small quantity of alumina, iron oxide, and traces of other oxides. These earths are largely used as filtration aids; they can serve as supports for certain catalysts, and have also excellent calorifugic properties.

A study of different sorts of kieselguhrs used as supports for nickel and cobalt catalysts in the Fischer-Tropfsch synthesis has recently been carried out by Anderson et al. (1947). These authors find that a previous treatment of the raw kieselguhr by hot hydrochloric and nitric acids gives more active catalysts than those obtained using the same support untreated, and especially than those prepared from calcined kieselguhrs.

Type
Research Article
Information
Clay Minerals Bulletin , Volume 1 , Issue 5 , May 1951 , pp. 145 - 150
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1951

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Anderson, R. B., McCartney, J. T., Keith Hall, W. and Hofer, L. J. E., 1947, Ind. Eng. Chem., 39, 1618.Google Scholar
Brunauer, S., Deming, L. S., Deming, W. E. and Teller, E., 1940. J.A.C.S., 62, 1723.Google Scholar
Brunauer, S., Emmett, P. H., and Teller, E., 1938, J.A.C.S., 60, 309.CrossRefGoogle Scholar
Craxford, S. R., Fuel in Science and Practice, Vol. XXVI., No. 5, p. 119.Google Scholar
Trambouze, Y., 1948, C. R., 227, 971.Google Scholar
Trambouze, Y., in preparation.Google Scholar
Trambouze, Y. and Perrin, M., 1949, C. R., 228, 1015.Google Scholar
Treadwell, F. P. and Boll, M., 1943, Manuel de Chimie Analytique, Tome II., p. 466, Dunod Editeur, 1943.Google Scholar
de Lange, J. et Visser, R., 1946, De Ingenieur, 58, 24.Google Scholar