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Alternate use for "proppants" (ceramic beads)



Here is an item of interest:
I have a client that manufactures proppants.  Proppants are small
sperical ceramic beads (usually 20-40 screen size)that are used in oil
drilling applications.  The proppants will withstand a load of 12,000
psi without any deformation.  The process is high volume and a large
amount of "off spec" product (going to the landfill) is produced with
each production run. 

I have been asked to see if anyone would have an alternative use for
the waste.  The material weighs about 100-125 #/cu. ft. and the
process creates 300 ton per month. The alternative use must require
large amounts to be feasible. (No home garage sand blasting use.)

I appreciate the help.

Loren Berry  <lberry@systema.westark.edu>
Arkansas Manufacturing Extension Network
Busibness and Industrial Institute
Westark Community College
Ft. Smith, Arkansas  72913
501 788-7783 Ph   501 788-7780 F
*****************************************************************8

Rudy Moehrbach
Waste Reduction Resource Center
P.O.Box 29569
Raleigh, NC 27626-9569,Tel 800-476-8686,FX 919-715-1612
Homepage http://owr.ehnr.state.nc.us/wrrc1.htm