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What is Diatomite?

June 21, 2012


What is Diatomite?


Diatomite is a soft, friable siliceous mineral.  It is composed of the skeletons of microscopic plants deposited on the bottoms of oceans and lakes after and during the Miocene Age, from 100 000 to 15 000 000 years ago.  Under the microscope the particles of diatomite show up in a variety of forms; symmetrical figures resembling disks, rods, cylinders and snowflakes.  It is this shape factor combined with the rigidity of the particles that makes diatomite such an excellent raw material for the production of superior filter aids.


Diatomaceous earth is an amorphous form of silica containing a small amount of microcrystalline material.  Diatomite filter aids are processed at above 1500ºF (800ºC). Both calcined and flux-calcined diatomite filter aids are free of organic matter and are non-absorptive.


Dicalite diatomite filter aids offer outstanding performance from the finest to the coarsest grades.  These materials meet all requirements for good filter aids.  This enables them to meet the exacting clarity and flowrate demands of industrial filtration.  Even more important, the user can depend on consistency and uniformity load after load.

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