Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Treatment method for neutralization tailings of carbonate clay type lithium ore
The invention discloses a treatment method of neutralized tailings of carbonate clay type lithium ores, which comprises the following steps: mixing the dried neutralized tailings with a strong acid solution to prepare mixed slurry; reacting the mixed slurry for a preset time, and sequentially carrying out solid-liquid separation and washing to obtain a first filtrate and a first filter cake; drying the first filter cake to prepare calcium sulfate; dropwise adding an alkaline solution into the first filtrate to remove impurities, and then carrying out solid-liquid separation to prepare a second filtrate and a second filter cake; roasting the second filter cake to prepare ferric oxide; dropwise adding a weakly alkaline solution into the second filtrate to remove impurities, and then carrying out solid-liquid separation to obtain a third filtrate and a third filter cake; and roasting the third filter cake to obtain aluminum oxide. According to the method, resource utilization of the neutralization tailings of the carbonate clay type lithium ore can be achieved, the neutralization tailings are efficiently and reasonably utilized, calcium sulfate, aluminum oxide and iron oxide are obtained, and remarkable economic benefits are achieved.
本发明公开了一种碳酸盐黏土型锂矿的中和尾矿的处理方法，包括：将干燥后的中和尾矿与强酸溶液进行混合，制得混合料浆；将混合料浆反应预设时间后，依次进行固液分离和洗涤，制得第一滤液和第一滤饼；将第一滤饼进行烘干，制得硫酸钙；向第一滤液中滴加碱性溶液进行除杂，而后进行固液分离，制得第二滤液和第二滤饼；将第二滤饼进行焙烧，制得三氧化二铁；向第二滤液中滴加弱碱性溶液进行除杂，而后进行固液分离，制得第三滤液和第三滤饼；将第三滤饼进行焙烧，制得氧化铝。本发明可实现碳酸盐黏土型锂矿的中和尾矿的资源化利用，高效合理的利用中和尾矿，得到硫酸钙和铝、铁氧化物，具有显著的经济效益。
Treatment method for neutralization tailings of carbonate clay type lithium ore
The invention discloses a treatment method of neutralized tailings of carbonate clay type lithium ores, which comprises the following steps: mixing the dried neutralized tailings with a strong acid solution to prepare mixed slurry; reacting the mixed slurry for a preset time, and sequentially carrying out solid-liquid separation and washing to obtain a first filtrate and a first filter cake; drying the first filter cake to prepare calcium sulfate; dropwise adding an alkaline solution into the first filtrate to remove impurities, and then carrying out solid-liquid separation to prepare a second filtrate and a second filter cake; roasting the second filter cake to prepare ferric oxide; dropwise adding a weakly alkaline solution into the second filtrate to remove impurities, and then carrying out solid-liquid separation to obtain a third filtrate and a third filter cake; and roasting the third filter cake to obtain aluminum oxide. According to the method, resource utilization of the neutralization tailings of the carbonate clay type lithium ore can be achieved, the neutralization tailings are efficiently and reasonably utilized, calcium sulfate, aluminum oxide and iron oxide are obtained, and remarkable economic benefits are achieved.
本发明公开了一种碳酸盐黏土型锂矿的中和尾矿的处理方法，包括：将干燥后的中和尾矿与强酸溶液进行混合，制得混合料浆；将混合料浆反应预设时间后，依次进行固液分离和洗涤，制得第一滤液和第一滤饼；将第一滤饼进行烘干，制得硫酸钙；向第一滤液中滴加碱性溶液进行除杂，而后进行固液分离，制得第二滤液和第二滤饼；将第二滤饼进行焙烧，制得三氧化二铁；向第二滤液中滴加弱碱性溶液进行除杂，而后进行固液分离，制得第三滤液和第三滤饼；将第三滤饼进行焙烧，制得氧化铝。本发明可实现碳酸盐黏土型锂矿的中和尾矿的资源化利用，高效合理的利用中和尾矿，得到硫酸钙和铝、铁氧化物，具有显著的经济效益。
Treatment method for neutralization tailings of carbonate clay type lithium ore
一种碳酸盐黏土型锂矿的中和尾矿的处理方法
WEN HANJIE (Autor:in) / LIU ZHIQI (Autor:in) / LI NA (Autor:in) / YAN DONGQIANG (Autor:in) / LUO ZHONGGUANG (Autor:in)
22.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
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