Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing
Patent
1978-09-29
1980-08-26
Peters, G. O.
Compositions: coating or plastic
Coating or plastic compositions
Proteinaceous material containing
106103, 106118, C04B 724
Patent
active
042193630
ABSTRACT:
A process for the preparation of Portland cement clinker resides in that limey, clayey and iron-containing components are ground together. The mix is then homogeneized pelletized, decarbonized at 800.degree. to 1000.degree. C. and roasted at 1200.degree. to 1350.degree. C. Dust sublimates--wastes of the titanium production--are added at the stage of grinding or homogeneization in an amount of 0.5 to 6.0% by total weight of raw mix, and, in case the dust sublimates are added at the homogeneization stage, an aqueous suspension of cakes--wastes of the titanium and magnesium production--is added at the pelletizing stage, at a volumetric ratio of water to cakes of 3-6:1, and in an amount of 10 to 14% by total weight of raw mix.
The process according to the invention enables the preparation of clinker exhibiting an improved strength. With the process according to the invention, the degree of decarbonization of raw mix is as high as 35-50%, and roasting temperature is 120.degree.-150.degree. C. lower.
REFERENCES:
patent: 1183255 (1916-05-01), Van der Toorn
patent: 1555405 (1925-09-01), Eckel
patent: 4111711 (1978-09-01), Kiehl et al.
Baklanov Grigory M.
Drepin Nikolai F.
Feofanov Lev P.
Frantsevich Andrei M.
Garmash Vladimir I.
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