Clinker and white portland cement with a high sulfur content...

Details Clinker and white portland cement with a high sulfur content... Clinker and white portland cement with a high sulfur content...

2006-02-21

2006-02-21

Marcantoni, Paul (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S713000

Reexamination Certificate

active

07001454

ABSTRACT:
The present invention relates to a family of white clinker compositions with a high capacity to fix sulfur derived from a high sulfur content pet-coke used as fuel in the manufacture thereof, which further exhibits low fuel composition and fast setting, achieved by being comprised of the following amounts of clinker phases in percentage by weight: 3CaO.SiO2(C3S): 40 to 75, 2CaO.SiO2(C2S): 10 to 35, 3CaO.Al2O3(C3A): 0 to 15, CaO.SO3(CS): 0 to 10, 4CaO.3Al2O3.SO3(C4A3{hacek over (S)}): 2 to 15, 11CaO.7Al2O3.CaF2(C11A7.CaF2): 0 to 5, total % CaF2: 0.3 to 1.5 measured as CaF2, % Fe2O3: 0 to 0.5 and a SO3content between 1.5 to 5% by weight obtained through the calcination of a raw meal containing CaO, SiO2, Al2O3, and CaF2, using as fuel, pet-coke with a sulfur content higher than 5% and at temperatures between 2192 and 2462° F., without the addition of essentially additive containing SO3 in the raw meal.

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