Method and system for deep desulfurization treatment of iron ore concentrates
The invention discloses a method and system for deep desulfurization treatment of iron ore concentrates. The method comprises the following steps: magnetic separation treatment->pulping treatment->oxidation treatment->aging treatment; first ore pulp is obtained by pulping; an oxidizing agen...
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| creator | ZHU JIE CAO ZHONGHUANG CHENG YIJIN CHEN DIYUN HE ZHIYI XU YING WANG YU ZHANG YONG CHEN YONGBIN QIN JUNHUA |
| description | The invention discloses a method and system for deep desulfurization treatment of iron ore concentrates. The method comprises the following steps: magnetic separation treatment->pulping treatment->oxidation treatment->aging treatment; first ore pulp is obtained by pulping; an oxidizing agent is added into the first ore pulp and the first ore pulp is made to have a sufficient oxidation reaction with the ore pulp; the ore pulp after undergoing the oxidation reaction is conveyed into an aging reactor and stirring and aging treatment are performed to obtain second ore pulp, and SO2 gas generated by the aging reaction and the oxidation reaction is absorbed by adopting sodium salt to obtain sulfite; and the second ore pulp is conveyed to a thickening well through a conveying pipeline for concentration, then sulfur is obtained after overflow recovery, and the low-sulfur iron ore concentrates are obtained after underflow is dehydrated through subsequent dehydration operation. According to the technical scheme provide |
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The method comprises the following steps: magnetic separation treatment->pulping treatment->oxidation treatment->aging treatment; first ore pulp is obtained by pulping; an oxidizing agent is added into the first ore pulp and the first ore pulp is made to have a sufficient oxidation reaction with the ore pulp; the ore pulp after undergoing the oxidation reaction is conveyed into an aging reactor and stirring and aging treatment are performed to obtain second ore pulp, and SO2 gas generated by the aging reaction and the oxidation reaction is absorbed by adopting sodium salt to obtain sulfite; and the second ore pulp is conveyed to a thickening well through a conveying pipeline for concentration, then sulfur is obtained after overflow recovery, and the low-sulfur iron ore concentrates are obtained after underflow is dehydrated through subsequent dehydration operation. 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The method comprises the following steps: magnetic separation treatment->pulping treatment->oxidation treatment->aging treatment; first ore pulp is obtained by pulping; an oxidizing agent is added into the first ore pulp and the first ore pulp is made to have a sufficient oxidation reaction with the ore pulp; the ore pulp after undergoing the oxidation reaction is conveyed into an aging reactor and stirring and aging treatment are performed to obtain second ore pulp, and SO2 gas generated by the aging reaction and the oxidation reaction is absorbed by adopting sodium salt to obtain sulfite; and the second ore pulp is conveyed to a thickening well through a conveying pipeline for concentration, then sulfur is obtained after overflow recovery, and the low-sulfur iron ore concentrates are obtained after underflow is dehydrated through subsequent dehydration operation. According to the technical scheme provide</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM COMPOUNDS THEREOF FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Method and system for deep desulfurization treatment of iron ore concentrates |
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