Effect of alkalis on alumina refractories in cement rotary kilns

Hegde, S. B.; Chaturvedi, Shivani

doi:10.1007/bf02238657

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“…The mineralogical composition of hot meal is a good indicator of the process parameters (temperature, partial pressure, composition of the raw materials, burner flame characteristics etc.). In fact, the control of preheater efficiency, prediction of the materials flowability and the refractories wear-out can be monitored by estimating the calcite, the chloride and sulfate salts amount, respectively (Choi and Glasser, 1988;Hegde and Chaturvedi, 1995).…”

Section: Introductionmentioning

confidence: 99%

Mineral quantification of preheated cement raw mix

Galai¹,

Hafdhallah²

2013

Advances in Cement Research

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A series of samples taken from different points of a cement preheater tower were the subject of a chemical and mineralogical study. In order to determine the amount of mineralogical components, especially that of calcite and aggressive phases (sulfates, sylvite, etc.), a quantitative analysis based on the Rietveld method was carried out and the results checked with the thermogravimetric analysis. The obtained results serve as a useful base to examine the evolution of undesirable phases and to control the efficiency of cyclones.

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Section: Introductionmentioning

confidence: 99%