Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-30T05:28:03.256Z Has data issue: false hasContentIssue false
  • English
  • Français

Laboratory processing trials on kaolin-bearing sandstones from Pugu, Tanzania, using conventional and new hydrocyclone bodies

Published online by Cambridge University Press:  09 July 2018

A. J. Bloodworth ,
D. J. Morgan  and
D. A. Briggs
A. J. Bloodworth
Affiliation:
British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
D. J. Morgan
Affiliation:
British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
D. A. Briggs
Affiliation:
British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

Kaolins have been separated from sandstones from the Pugu Hills deposit, Tanzania, using a 15 mm glass hydrocyclone and a laboratory-scale multiple unit consisting of six 10 mm cyclones. Two types of sandstone were treated—containing a disordered kaolin (Pugu D) and a well-ordered variety (Pugu K)—to see whether products could be obtained that met particle-size specifications for paper manufacture. Pugu D gave a product that would meet specifications for both paper-filling and -coating applications with minimal processing, although the extremely fine-grained nature of this kaolin could lead to high viscosities in suspension. Processing of Pugu K gave products containing up to 97% kaolin and particle-size distributions that would meet specifications for filler and, possibly, coating clay. However, it was impossible to eliminate 3% or so of fine-grained quartz from these products and this could militate against use in paper manufacture.

Type
Research Article
Information
Clay Minerals , Volume 24 , Issue 3 , September 1989 , pp. 539 - 548
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1989

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

Bain, J.A. & Morgan, D.J. (1983) Laboratory separation of clays by hydrocycloning. Clay Miner., 18, 33–47. CrossRefGoogle Scholar
Cilek, V. (1979) The origin and development of primary and secondary kaolin deposits in Tanzania. Rozpravy Acad., 89, 60 pp.Google Scholar
Highley, D.E. (1984) China Clay. Mineral Resources Consultative Committee Mineral Dossier 26, HMSO, London.Google Scholar
Jengo, E. & Heikkila, L. (1986) Pugu kaolin: a project under development. Industrial Minerals January, 41–44. Google Scholar
Lobitzer, H., Glacomini, R., Muller, H.W., Notshaller, R. & Schwaighofer, B. (1983) Geology and utilization of the Pugu Hills kaolin deposit, Tanzania. Mitt. Ges. Bergbaustud. Osterr., 29, 1–40. Google Scholar
Patterson, S.H. & Murray, H.H. (1975) Clays. Pp. 519-585 in: Industrial Minerals and Rocks, 4th edition. Am. Inst. Min. Metall., New York.Google Scholar
Robertson, R.H.S., Brindley, G.W. & Mackenzie, R.C. (1954) Mineralogy of kaolin clays from Pugu, Tanzania. Am. Miner., 39, 118–138.Google Scholar
Schwaighofer, B. & Muller, H.W. (1987) Mineralogy and genesis of the Pugu Hill kaolin deposit, Tanzania. Clay Miner., 22, 401–409.CrossRefGoogle Scholar
Van Olphen, H.W. & Fripiat, J.J. (1979) Data Handbook for Clay Materials and other Non-metallic Minerals. Pergamon Press, Oxford, 346 pp.Google Scholar