Process for the production of portland type cement clinker

Details Process for the production of portland type cement clinker Process for the production of portland type cement clinker

1977-04-25

1979-01-23

Rutledge, L. Dewayne

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106102, C04B 702

Patent

active

041359410

ABSTRACT:
An improved process for producing portland and portland type cement clinker wherein argillaceous and calcareous type materials are ground and blended to form a generally homogeneous mixture and subsequently burned in a kiln at a temperature in the range of about 1200.degree. C. to about 1500.degree. C. to form cement clinker, the improvement comprising incorporating into the mixture a fluorine containing mineral acid, selected from the group comprising fluotitanic acid, fluoboric acid, fluophosphoric acid, fluosilicic acid, and hydrofluoric acid, as a fluxing and mineralizing agent, in an amount of up to 3.0% by weight based upon the weight of the dry solids in the mixture.

REFERENCES:
patent: 417634 (1889-12-01), Duryee
patent: 1904640 (1933-04-01), Windecker
patent: 3861928 (1975-01-01), Slater et al.
patent: 4042408 (1977-08-01), Murray et al.

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