| 摘要 |
There is provided a process for the thermal conversion of non-ferrous smelting slag to granular products having sufficient strength and other useful characteristics for use as proppant, gravel pack, roofing granules and abrasive blast materials. Non-ferrous smelting slag is treated with silica, alumina, calcia and magnesia and then heated for a period of time sufficient for reaction of the ingredients and homogenization prior to being made into granular products.
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