Method for preparing ceramic tiles from calcium silicate slag
2013
The invention relates to a method for preparing ceramic tiles from calcium silicate slag, belonging to the field of comprehensive utilization of resources and novel technologies for ceramic preparation. The ceramic tiles contain the following raw materials in percentage by weight: 30-60% of calcium silicate slag, 10-30% of clay, 2-25% of quartz, 0-20% of feldspar, 0-10% of pyrophyllite, 0-10% of green coke and 0-10% of talc. According to the method, ceramics are produced from calcium silicate slag, so that the stacked discharge of calcium silicate slag is reduced, the aim of resource recycling is achieved, and a new way for the high-added-value utilization of calcium silicate slag is added; the utilization ratio of calcium silicate slag in calcium silicate slag ceramics can reach 60%; by using the characteristic that a great deal of alkali metal ions are contained, a feldspar raw material can be replaced partially or totally, and the ceramic tiles are produced under the low-temperature condition of 1,130-1,180 DEG C; all properties of the ceramic tiles prepared by the method disclosed by the invention are better than the national ceramic standards.
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