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, 252/34

C01B 33/12 (2006.01) B01J 20/10 (2006.01)

Patent

CA 1123172

ABSTRACT OF THE DISCLOSURE The present invention provides a shaped body of amorphous silica comprising secondary particles of amorphous silica compressed in at least one direction and interlocked with one another integrally into the body and voids interspersed therebetween, the secondary particle being composed of numer- ous primary particles of amorphous silica randomly three- dimensionally interlocked with one another, each of the primary particles having a crystalline appearance, at least two sur- faces in symmetric relation, a length of about 1 to about 500 µ and a thickness of about 50 .ANG. to about 1 µ, the length being at least about ten times the thickness. The silica particles are useful for the adsorption of gases and water, have high oil adsorbing capacity and provide light weight shaped bodies of high mechanical strength and acid resistance.

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