| 摘要 |
<p>The invention relates to an inorganic, insoluble industrial raw material based on silicate complexes which is characterized by a specific particle size, bulk density, specific gravity, metal content, pH, hydrophilic surface, absorption of moisture, temperature resistance and by non-leachability of the metals, particularly of the heavy metals. The above material can be produced from waste, especially industrial waste. In this method the waste materials are mixed with a plastic material comprising silicon and aluminum to form a plastic mixture. The mixture is prepared into shaped articles with a high surface which are heat-treated in the following to remove the organic matter and to bond the inorganic matter in stable, solid, insoluble silicate complexes. The raw material prepared in the above way is used as fillers, controlled size aggregates for the building industry, catalyst support, and additives for abrasives.</p> |
