In view of the situation that steel slag and waste catalyst produced in the petroleum industry are difficult to use,according to the composition characteristics of steel slag and waste catalyst,steel slag and waste catalyst are jointly used to prepare building ceramics.ICP,XRD and FTIR were used to determine the properties of different compositions and different process conditions.The results show that under the optimum sintering conditions(mass ratio of steel slag to waste catalyst is 6∶4,calcina-tion temperature is 1 180℃,calcination time is 30 min),the performance of ceramic granules is ex-cellent,and the leaching results of Cr,Ni and As in ceramic granules meet the national standards.The main minerals of the slag and waste catalyst ceramisite are magnesia-aluminum-garnet phase and spinel phase,which is conducive to improving the performance of the ceramisite,and spinel phase can well cover heavy metals,which is conducive to the consolidation of heavy metal elements.
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