process for briquetting and cold pelletizing of ferrous or non-ferrous or fine ore, briquette and pellet ore produced in accordance with it.

摘要

The present invention provides a process for cold briquetting and pelletization of ferrous or non-ferrous or mineral fines using iron bearing hydraulic mineral binders for metallurgical applications, said process consisting the steps of: mixing 84-95% by Wt. of a metallurgical/mineral/carbonaceous/oil contaminated materials in the form of dust/fines/sludge with 4-10 % by Wt. of an iron bearing hydraulic mineral binder and optionally with 2-6 % by Wt. water and 0.05 to 0.20% by Wt. of a surface active agent to form a homogenized dry mix / slurry, pelletizing / compacting the dry mix / slurry to form an agglomerated mass, and curing the agglomerated mass for 3-20 days by exposing the agglomerated mass to atmospheric air for 10-14 hours followed by moisture treatment. The iron bearing binder is an ultrafine powdery material (like cement) having as chemical constituents 25 to 45% of Fe203, 40 to 60% of Ca0+Mg0 and 12 to 18% of Si02+A1203.