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Method for efficiently and comprehensively treating red mud-electrolytic manganese residues
The invention discloses a method for efficiently and comprehensively treating red mud-electrolytic manganese residues, which comprises the following steps: (1) mixing red mud, electrolytic manganese residues and water to obtain a mixture; (2) repeatedly filtering and washing the mixture, and collecting filtrate and a filter cake; (3) concentrating and crystallizing the filtrate to obtain sodium sulfate powder; (4) uniformly mixing the filter cake with water, and carrying out magnetic separation to respectively obtain iron ore concentrate and magnetic separation tailings; and (5) magnetic separation tailings and stone sand are mixed, a red mud-electrolytic manganese residue geopolymer is prepared under the alkali excitation condition, and standard curing is conducted. According to the method, the alkaline red mud and the acidic electrolytic manganese residues are mixed in proportion for neutralization reaction to extract sodium sulfate, the agglomeration characteristic of the red mud is effectively reduced, dispersion is promoted, iron magnetic separation is facilitated, finally, the magnetic separation tailings are prepared into geopolymers, and therefore comprehensive utilization of solid waste is achieved; the method is simple in process, free of pollution, low in energy consumption, easy to control and outstanding in economic and environmental benefits.
本发明公开了一种高效综合处置赤泥‑电解锰渣的方法，包括以下步骤：(1)将赤泥、电解锰渣和水进行混合，得到混合料；(2)将混合料进行反复过滤洗涤，收集滤液及滤饼；(3)将滤液进行浓缩结晶，结晶出硫酸钠粉末；(4)将滤饼与水混合均匀，并进行磁选分离，分别得到铁精矿和磁选尾矿；(5)将磁选尾矿与石砂混合，在碱激发条件下制备赤泥‑电解锰渣地聚物，并进行标准养护。本发明将碱性赤泥与酸性电解锰渣按比例混合发生中和反应提取硫酸钠，并有效降低赤泥的团聚特性，促进分散，有利于磁选铁，最后将磁选尾渣制备地聚物，从而达到固废的综合利用；本发明工艺简单，无污染、能耗低，且易于控制，经济和环境效益突出。
Method for efficiently and comprehensively treating red mud-electrolytic manganese residues
The invention discloses a method for efficiently and comprehensively treating red mud-electrolytic manganese residues, which comprises the following steps: (1) mixing red mud, electrolytic manganese residues and water to obtain a mixture; (2) repeatedly filtering and washing the mixture, and collecting filtrate and a filter cake; (3) concentrating and crystallizing the filtrate to obtain sodium sulfate powder; (4) uniformly mixing the filter cake with water, and carrying out magnetic separation to respectively obtain iron ore concentrate and magnetic separation tailings; and (5) magnetic separation tailings and stone sand are mixed, a red mud-electrolytic manganese residue geopolymer is prepared under the alkali excitation condition, and standard curing is conducted. According to the method, the alkaline red mud and the acidic electrolytic manganese residues are mixed in proportion for neutralization reaction to extract sodium sulfate, the agglomeration characteristic of the red mud is effectively reduced, dispersion is promoted, iron magnetic separation is facilitated, finally, the magnetic separation tailings are prepared into geopolymers, and therefore comprehensive utilization of solid waste is achieved; the method is simple in process, free of pollution, low in energy consumption, easy to control and outstanding in economic and environmental benefits.
本发明公开了一种高效综合处置赤泥‑电解锰渣的方法，包括以下步骤：(1)将赤泥、电解锰渣和水进行混合，得到混合料；(2)将混合料进行反复过滤洗涤，收集滤液及滤饼；(3)将滤液进行浓缩结晶，结晶出硫酸钠粉末；(4)将滤饼与水混合均匀，并进行磁选分离，分别得到铁精矿和磁选尾矿；(5)将磁选尾矿与石砂混合，在碱激发条件下制备赤泥‑电解锰渣地聚物，并进行标准养护。本发明将碱性赤泥与酸性电解锰渣按比例混合发生中和反应提取硫酸钠，并有效降低赤泥的团聚特性，促进分散，有利于磁选铁，最后将磁选尾渣制备地聚物，从而达到固废的综合利用；本发明工艺简单，无污染、能耗低，且易于控制，经济和环境效益突出。
Method for efficiently and comprehensively treating red mud-electrolytic manganese residues
一种高效综合处置赤泥-电解锰渣的方法
WEI QINGMENG (author) / YANG XIONGQIANG (author) / LI YIBING (author) / HU MINGCHAO (author) / LI LINGHAO (author) / WU CHENGZHI (author)
2022-07-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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