Amorphous silicon for use in foods, drugs, cosmetics and feed, and production method and production device thereof

Abstract

A porous and easy water soluble amorphous silica which does not contain tar, crystal, residual agrichemicals, and carcinogens, and method and apparatus to produce same, by using only one burning treatment from a plant including abundant silica, including a method of manufacturing the amorphous silica wherein rice family plants are burned while stirring and introducing into the furnace an atmospheric gas having a mass of 6.7× or more and 20× or less of the weight of the rice family plants, or oxygen gas having a weight of 1.4× or more and 4× or less with respect to the weight of the rice family plants, and at the same time as burning, combustion gas generated at the time of combustion is discharged.

1 . An amorphous silica, formed by burning rice family plants in a combustion apparatus that includes a rotating kiln ( 2 ),
 said amorphous silica being porous, and wherein water-soluble carcinogenenic substances are less than 0.01 ppm, and residual agrichemicals are less than 0.1 ppm.