Method for producing mineral products having a great heat conten

Details Method for producing mineral products having a great heat conten Method for producing mineral products having a great heat conten

1996-11-18

1998-12-01

Marcantoni, Paul

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106745, 588257, C04B 724

Patent

active

058432230

ABSTRACT:
The method for producing mineral products having a great heat content from waste materials and slurries and resulting products comprises the steps of: submitting the waste materials and slurries to a homogenizing mixing; making a stoichiometric mixture at least of CaCO.sub.3, clay and SiO.sub.2 ; circulating the stoichiometric mixture in at least one heating and calcinating furnace whereby a lime product is produced at a temperature for decarbonating CaCO.sub.3 ; separating at least in part the lime product; and raising the temperature at least until obtainment of (CaO).sub.2 (SiO.sub.2).beta. having hydraulic properties and a crystallised form wherein .beta. is belite.

REFERENCES:
patent: 3770469 (1973-11-01), Kapolyi et al.
Chemical Abstracts, vol. 118, No. 22, 31 May 1993. Kurdowski, Wieslaw et al., "Manufacture of cement clinkers from waste slurry from extraction in alumina manufacture."
Chemical Abstracts, vol. 113, No. 16, 15 Oct. 1990. Agzamov F. et al., "Method of obtaining belite binder."
Chemical Abstracts, vol. 103, No. 26, 30 Dec. 1985. Majling J. et al., "Belite clinkers", p. 296.
Chemical Abstracts, vol. 92, No. 10, 10 Mar. 1980. Allik, A., "Raw material resources for the production of cement in Guinea", p. 307.
Chemical Abstracts, vol. 106, No. 16, 20 Apr. 1987. Shirasaka, M., "Manufacture of gamma-dicalcium silicate powder", p. 340.

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