Resourceful treatment method of tailings obtained after vanadium extraction of stone coal, and paving material
The invention discloses a resourceful treatment method of tailings obtained after vanadium extraction of stone coal. The method comprises the following steps: finely grinding the tailings obtained after vanadium extraction of stone coal by using a ball mill, and then carrying out deacidification and...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a resourceful treatment method of tailings obtained after vanadium extraction of stone coal. The method comprises the following steps: finely grinding the tailings obtained after vanadium extraction of stone coal by using a ball mill, and then carrying out deacidification and decarbonization treatment to obtain carbon concentrate and decarbonized tailings; subjecting the decarburized tailings to filtering and drying and adding a grinding aid for grinding activation so as to obtain activated decarburized tailing powder; uniformly mixing the activated and decarbonized tailing powder with blast furnace slag powder, desulfurized gypsum, fly ash, silica fume and an excitation enhancer to obtain a novel curing agent; and mixing untreated raw tailings obtained after vanadium extraction of the stone coal with carbide slag and construction waste recycled aggregate, adding the curing agent and water, and carrying out uniform stirring to obtain the material for paving a road base or a subbase. Th |
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