Portland cement manufacture

Details Portland cement manufacture Portland cement manufacture

1977-01-11

1978-03-28

Poer, J.

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106103, C04B 736

Patent

active

040812855

ABSTRACT:
Waste matter is incinerated in a combustion zone external to a rotary cement kiln. The resulting gaseous product is taken up in effluent gas from the cement making process in contact with calcareous material. At least some of the combustion zone bottom ash is combined in the eventual standard Portland cement by firing it in the kiln with the clinker-forming materials. The combustion zone can for instance be a fluidized bed combustor. The combustion zone can be a zone through which the clinker-forming materials pass at a temperature such that the waste matter ignites.

REFERENCES:
patent: 3127455 (1964-03-01), Culbertson

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