Light-coloured, porous, and friable sedimentary rock composed of the frustrules (silicate cell walls) of diatoms. It is used in industrial filtration applications; as a filler or extender in paper, paint, brick, tile, ceramics, linoleum, plastic, soap, detergent, and other products; in insulation for boilers, blast furnaces, and other high-temperature devices; as a sound insulator; and as a carrier for herbicides and fungicides. The oldest and best-known commercial use is as a very mild abrasive in metal polishes and toothpaste. Large deposits occur in California, Nevada, Washington, and Oregon; other sources are Denmark, France, Russia, and Algeria.
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Publication No. WO/2010/042614 Published on April 15, Assigned to WORLD MINERALS for Diatomaceous Earth Product, Preparation Process, Use Method (American Inventors)
Apr 19, 2010; GENEVA, April 21 -- Bo Wang, the U. S., has developed diatomaceous earth products, processes for preparing them, and...
WIPO ASSIGNS PATENT TO MILLER BREWING INTERNATIONAL FOR "METHODS FOR REDUCING SOLUBLE METAL IONS IN DIATOMACEOUS EARTH FILTER AIDS" (AMERICAN INVENTORS)
Sep 23, 2011; GENEVA, Sept. 23 -- Publication No. WO/2011/115832 was published on Sept. 22. Title of the invention: "METHODS FOR REDUCING...