Patent ID: 9175363
Filing Date: 2015-11-03
Classification: C21B,C22B

Abstract:
1. Method for producing an agglomerate, having a mass humidity that can be adjusted, which is used as a blast furnace feedstock, by mixing metal- and/or metal oxide containing fines, comprising a proportion of intermediate grain sizes between about 0.2 mm to 0.7 mm of more than 30% wt., a mineral binder comprising a mineral raw material and a lime-based material to form a mass and consolidating the mass to form an agglomerate, by a sintering process, characterized in that the mineral raw material contains a clay mineral and comprises a silicon oxide proportion of at least 40 wt. % and a finest grain proportion of less than 4 μm of at least 20 wt. %, and a grain size proportion of less than 1 μm of at least 10 wt. %.