Disposable volatilized silica dust

Details Disposable volatilized silica dust Disposable volatilized silica dust

C - Chemistry, Metallurgy

09

C

6/226

C09C 1/28 (2006.01) C01B 33/025 (2006.01) C04B 18/14 (2006.01) C09C 1/30 (2006.01) C09C 3/04 (2006.01)

Patent

CA 1153507

A B S T R A C T There is provided a process for the preparation of substantially water-insoluble granules of volatilized silica by first mixing a predetermined amount of volatil- ized silica with 40 to 60% by weight of water and from 1 to 3% by weight of an alkaline earth metal oxide and when a thick slurry is obtained, adding thereto from 10 to 50% of the initial amount of volatilized silica and continuing the mixing until hard granules are obtained. These granules are suitable for disposal in open pits or dumps. silica with 40 to 60% by weight of water and from 1 to 3% by weight of an alkaline earth metal oxide and when a thick slurry is obtained, adding thereto from 10 to 50% of the initial amount of volatilized silica and continuing the mixing until hard granules are obtained. These granules are suitable for disposal in open pits or dumps.

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