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 1122778

ABSTRACT OF THE DISCLOSURE The present invention provides an amorphous silica particle in the form of a substantially globular secondary particle having a diameter of about 10 to about 150µ and com- posed of numerous primary particles of amorphous silica randomly three-dimensionally interlocked with one another 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 thickness of about 50 A 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 provide light weight shaped bodies of high mechanical strength and acid resistance.

358845

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