Abstract

Nickel slag can be recycled as one of excellent secondary sources due to valuable iron resource. A static model of recycling nickel slag by aluminum dross was established based on material balance and non-isothermal thermodynamic calculations. Discussions had been carried out under different basicities of the modified slags and the reduction degree of ‘FeO,’ and the results showed that the dosage of nickel slag, aluminum dross, and modifier is 55.60%, 28.82%, and 15.58%, respectively, at the basicity of modified slag of 1.0. The non-isothermal thermodynamic model indicated that an increment of slag temperature from 114.3 to 430.2 K could be obtained with the reduction process, which not only signified the superiority of aluminothermy, but also laid a foundation for the industrial practice.

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