SOME EFFECTS OF COAL ASH ON REFRACTORIES1 |
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| Authors: | T N McVay R K HURSH |
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| Affiliation: | 1. Associate, Ceramic Engineering, Univ. of Illinois.;2. Associate Professor, Ceramic Engineering, Univ. of Illinois. |
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| Abstract: | The action of coal ash on the following types of refractories was studied: (1) high diaspore brick, (2) fireclay refractories with very little quartz, (3) fireclay refractories with considerable quartz, (4) refractories containing a mixture of diaspore and fireclay, and (5) andalusite refractories. The tests were carried out in a rotary test furnace at temperatures ranging from 1500 to 1600°C. The phases present in the coal-ash refractory slag were identified by means of the petrographic microscope and consisted of magnetite, mullite, and glass. The effects of time of slag action and slagging temperature were studied. |
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