Self-reducing, cold-bonded pellets

Details Self-reducing, cold-bonded pellets Self-reducing, cold-bonded pellets

2011-03-01

2011-03-01

Marcantoni, Paul (Department: 1731)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S739000, C264S333000

Reexamination Certificate

active

07896963

ABSTRACT:
Self-reducing, cold-bonded pellets and a method for their production for smelting a great variety of steels, including blast furnace iron-making, non-blast furnace iron-making, and all sorts of steelmaking in steel smelting furnaces, etc. The self-reducing, cold-bonded pellets comprise iron ore concentrate, carbonaceous reducing agent, and finely divided Portland cement clinker with special requirements as binder. The components are combined together to form a mixture. Pellets are produced when the mixture is placed into a balling disc or rotating drum and water is added. Pellets with predetermined size normally ranging from about 8-16 mm are obtained by using roller screens. The pellets are then continuously placed into a curing device. Inside the curing device, the pellets will then be hydrated and carbonated by using hot gases containing carbon dioxide with a temperature range of about 100-300° C. Thereafter, after drying, the dried pellets are discharged from the curing device and will be ready for use.

REFERENCES:
patent: 3150958 (1964-09-01), Collin et al.
patent: 3174846 (1965-03-01), Brisse et al.
patent: 3264092 (1966-08-01), Ban
patent: 3323901 (1967-06-01), Dahl
patent: 3437474 (1969-04-01), Imperato
patent: 3490895 (1970-01-01), Svensson
patent: 3617254 (1971-11-01), Imperato
patent: 3938987 (1976-02-01), Ban
patent: 4049435 (1977-09-01), Lotosh et al.
patent: 4093448 (1978-06-01), Eliseev et al.
patent: 4168966 (1979-09-01), Furui et al.
patent: 4528029 (1985-07-01), Goksel
patent: 4636342 (1987-01-01), Miyashita et al.
patent: 4846884 (1989-07-01), Shigematsu et al.
patent: 5066327 (1991-11-01), Yanaka et al.
patent: 6334883 (2002-01-01), Tanenaka et al.
patent: 6409964 (2002-06-01), Aota et al.
patent: 6565623 (2003-05-01), Contrucci et al.
patent: 6752865 (2004-06-01), Nayak et al.
patent: 106022 (1988-03-01), None
patent: 1158903 (1997-09-01), None
patent: 3139375 (1983-04-01), None
patent: 171194 (1992-08-01), None
patent: 61207526 (1986-09-01), None
patent: 61253330 (1986-11-01), None
patent: WO02/075009 (2002-09-01), None

Affiliated with

Also associated with

Rating

Self-reducing, cold-bonded pellets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-reducing, cold-bonded pellets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-reducing, cold-bonded pellets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2777409