Amorphous silica, products thereof and methods of preparing...

Details Amorphous silica, products thereof and methods of preparing... Amorphous silica, products thereof and methods of preparing...

C - Chemistry, Metallurgy

01

B

23/192

C01B 33/12 (2006.01) C01B 33/113 (2006.01)

Patent

CA 1097030

ABSTRACT OF THE DISCLOSURE The present invention provides an amorphous silica particle in the form of a primary particle having a crystalline appearance, at least two surfaces in symmetric relation, a length of about 1 to about 500µ and a thickness of about 50.ANG. to about 1µ, the length being at least about 10 times the thickness. The invention also provides a shaped body of amorphous silica comprising primary particles of amorphous silica randomly three-dimensionally interlocked with one another inte- grally into the body and voids interspersed therebetween, each of the primary particles having a crystalline appearance, at least two surfaces in symmetric relation, a length of about 1 to about 500µ and a thichness of about 50.ANG. to about 1µ, the length being at least about 10 times the thickness. The silica particles are useful for the adsorption of gases and water have high oil adsorbing capacity and provides light weight shaped bodies of high mechanical strength and acid resistance.

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