Comprehensive recycling method of thallium-containing zinc slag
The invention discloses a comprehensive recycling method of thallium-containing zinc slag. Treating the thallium-containing zinc slag at high temperature, recovering zinc and thallium in a flue gas collection manner, and separating the zinc and the thallium from iron in the thallium-containing zinc...
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| creator | LI JIA YE HENGDI YAO YUAN YANG BENTAO FENG ZHEYU LIU YANTING ZHANG ZHEN LIU BAIYUE |
| description | The invention discloses a comprehensive recycling method of thallium-containing zinc slag. Treating the thallium-containing zinc slag at high temperature, recovering zinc and thallium in a flue gas collection manner, and separating the zinc and the thallium from iron in the thallium-containing zinc slag; washing the zinc and thallium-containing smoke dust with water, intensively eluting potassium, sodium and chloride ions in the zinc and thallium-containing smoke dust, and purifying salt in the zinc oxide powder; and finally, deeply removing thallium and heavy metals in the high-salinity wastewater by treating the dust washing wastewater with a thallium removal agent through a weak reduction complex breaking-polydentate chelating one-step method, and recovering to obtain high-value potassium sodium salt. A dust washing filter cake is pulpified, a porous biomass-based adsorbent is adopted for acidic heavy metal removal and thallium removal, a large number of negative charges are accumulated on the surface of t |
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Treating the thallium-containing zinc slag at high temperature, recovering zinc and thallium in a flue gas collection manner, and separating the zinc and the thallium from iron in the thallium-containing zinc slag; washing the zinc and thallium-containing smoke dust with water, intensively eluting potassium, sodium and chloride ions in the zinc and thallium-containing smoke dust, and purifying salt in the zinc oxide powder; and finally, deeply removing thallium and heavy metals in the high-salinity wastewater by treating the dust washing wastewater with a thallium removal agent through a weak reduction complex breaking-polydentate chelating one-step method, and recovering to obtain high-value potassium sodium salt. 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Treating the thallium-containing zinc slag at high temperature, recovering zinc and thallium in a flue gas collection manner, and separating the zinc and the thallium from iron in the thallium-containing zinc slag; washing the zinc and thallium-containing smoke dust with water, intensively eluting potassium, sodium and chloride ions in the zinc and thallium-containing smoke dust, and purifying salt in the zinc oxide powder; and finally, deeply removing thallium and heavy metals in the high-salinity wastewater by treating the dust washing wastewater with a thallium removal agent through a weak reduction complex breaking-polydentate chelating one-step method, and recovering to obtain high-value potassium sodium salt. 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Treating the thallium-containing zinc slag at high temperature, recovering zinc and thallium in a flue gas collection manner, and separating the zinc and the thallium from iron in the thallium-containing zinc slag; washing the zinc and thallium-containing smoke dust with water, intensively eluting potassium, sodium and chloride ions in the zinc and thallium-containing smoke dust, and purifying salt in the zinc oxide powder; and finally, deeply removing thallium and heavy metals in the high-salinity wastewater by treating the dust washing wastewater with a thallium removal agent through a weak reduction complex breaking-polydentate chelating one-step method, and recovering to obtain high-value potassium sodium salt. A dust washing filter cake is pulpified, a porous biomass-based adsorbent is adopted for acidic heavy metal removal and thallium removal, a large number of negative charges are accumulated on the surface of t</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SEPARATION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | Comprehensive recycling method of thallium-containing zinc slag |
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