Preparation of abrasive material from spent catalysts

Details Preparation of abrasive material from spent catalysts Preparation of abrasive material from spent catalysts

C - Chemistry, Metallurgy

09

K

57/23

C09K 3/14 (2006.01) C04B 35/653 (2006.01)

Patent

CA 1063812

PREPARATION OF ABRASIVE MATERIAL FROM SPENT CATALYSTS Abstract of the Disclosure An abrasive material is prepared from a starting material. comprised of a spent metallic catalyst on an alumina carrier by melting the starting material with a reducing agent to obtain a melt consisting of a melt component in- cluding the alumina on an alloy residue, cooling the melt at a speed correlated with a desired crystallite size of the abrasive material to be obtained, and mechanically sep- arating the melt component from the alloy residue before or after solidification, the melt component constituting the abrasive material.

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