✍ Scribed by Y.B. Pliego-Cuervo; F.P. Glasser
No coin nor oath required. For personal study only.
The CaO-rich portions of the systems CaO-A~203-SiO2-K2SO,, CaO-AC203-K2SO,-CaSO,, CaO-A~203-SiO2-K2SO,-CaSO, and CaO-A~203-Fe203-CaSO,-K2SO, have been studied experimentally. Schemes are presented showing phase assemblages compatible at subsolidus temperatures. Melting commences at about 825°C in assemblages containing K2SO,. Silicate, aluminate and ferrite phases are comparatively insoluble in molten alkalirich sulphates. At clinkering temperatures, two immiscible liquids form; one is rich in K20 and sulphate, the other is a silicate liquid. Some features of vapour-liquid-solid equilibria relevant to the S cycle in cement kilns are discussed.
📜 SIMILAR VOLUMES
The individual subsystems of the basic five component oxide system CaO-SiO2-AI203-Fe203-SO 3 are analysed for their subsolidus phase relationship. The study is confined to the portion of the system in which C2S, the key mineralogical component of belite clinker is present. As a result eighteen equil
The mineralogical (phase) composition of sulphoaluminate belite cement clinkers was calculated using phase compatibility data of the relevant portion of the five component oxide system CaO-SiO2-A1203-Fe203-SO 3 and was plotted in the plane of three component raw mix. In result a phase fields map (PF
An equilibrium phase diagram has been calculated for the CaO-A1203-CaSO4-K20-H20 system at 25°C for several KOH concentrations. These KOH concentrations were chosen to relate to cement pore fluid compositions and published experimental data. In addition to the hydrates found in the CaO-A1203-CaSO4-H