A Simple Air-Stream Clay Separator
A simple, air-stream clay separator was devised to separate the 30 mm and smaller fraction from relatively large amounts of dry clay. The separator can process approximately 36 kg of clay in six hours with an average product yield of about 800 g, depending upon the initial particle size distribution of the clay. By increasing the length of the separator the design can be altered to separate an even smaller size fraction. The air-stream separator could be used as a simple and expedient preconcentration step prior to final separation in a typical laboratorymodel, low-volume hydrocyclone, or for separation of the clay fraction from dry soil.
The air separator is based on the principle that smaller, lighter clay particles travel farther than larger, heavier particles before settling out of the air stream. Of course, particle clumps act as individual particles. Therefore, unflocculated, dry clay gives the best yield in the air separator.
T. M. Whitworth et al., "A Simple Air-Stream Clay Separator," Journal of Sedimentary Petrology, vol. 63, no. 4, pp. 766-768, Society of Economic Paleontologists and Mineralogists, Jul 1993.
The definitive version is available at http://dx.doi.org/10.1306/D4267BFE-2B26-11D7-8648000102C1865D
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Air Separator; Clay Separator; Particle Size
International Standard Serial Number (ISSN)
Article - Journal
© 1993 Society of Economic Paleontologists and Mineralogists, All rights reserved.