Process for cold briquetting and pelletization of ferrous or...

Details Process for cold briquetting and pelletization of ferrous or... Process for cold briquetting and pelletization of ferrous or...

2005-07-26

2005-07-26

Andrews, Melvyn (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Consolidating metalliferous material by agglomerating,...

C075S771000, C075S773000

Reexamination Certificate

active

06921427

ABSTRACT:
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 80-95% by Wt. of a metallurgical/mineral/carbonaceous/oil contaminated dust/fines/sludge with 3-10% 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.

REFERENCES:
patent: 4168966 (1979-09-01), Furui et al.
patent: 5100464 (1992-03-01), Kelly et al.

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