The Firing of Slag Containing Batch

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J. Korean Ceram. Soc. > Volume 15(4); 1978 > Article

Journal of the Korean Ceramic Society 1978;15(4): 185.

광재 조합물 소성에 관한 연구

박기형, 송한식, 천성순, 김종희

한국과학원 재료공학과

The Firing of Slag Containing Batch

ABSTRACT

The effects of slag prticle size, $Na_2SO_4$ addition and sulphide in slag to the foam formation was investigated. This investigation showed that the slag particle size and the amount of $Na_2O$ had produced effects on the size of the foam, foam distribution and firing temperatures. In addition to that the amount of sulphide loss during the firing was controlling factor for the foam formation. The smaller slag particles and higher firing temperatures increased the loss of sulphide in the slag. The addition of $Na_2SO_4$ in the slag batch was likely to inhibit the foam formation. The larger slag particles resutled in the larger foam size and tended to be increasing the batch firing temperature. The main constituents of slag formed glass consisted of wallstonite and glassy phase. It is believed that the controlling the slag particle size and the amount of $Na_2SO_4$ in the slag batch will probably be main factors in foam formation.