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Method for improving strength of tailing material by generating calcium carbonate precipitate through chemical induction
The invention discloses a method for improving the strength of a tailing material by generating calcium carbonate precipitate through chemical induction, which comprises the following steps: drying the tailing material in a drying oven at 105 DEG C for 24 hours, slowly pouring a calcium chloride solution into the dried tailing material, uniformly mixing, and standing for 1 hour; slowly pouring the sodium carbonate solution into the mixture of the tailing material and the calcium chloride solution, uniformly stirring, and standing and curing for 24 hours after stirring. According to the method, a large number of calcium carbonate precipitates can be generated in the tailings, a large number of heavy metal ions and the calcium carbonate precipitates are subjected to a co-precipitation reaction, and the co-precipitates are extremely low in solubility and insoluble in flowing liquid, so that the method has a certain repairing effect on heavy metal pollution of the tailings.
本发明公开了一种化学诱导生成碳酸钙沉淀提高尾矿料强度的方法，包括：将尾矿料置于105℃烘箱内烘干24小时，将氯化钙溶液缓慢倒入烘干后的尾矿料中，并拌和均匀，静置1小时；再将碳酸钠溶液缓慢倒入尾矿料和氯化钙溶液的混合物中，并拌和均匀，搅拌完成后静置养护，养护时间为24小时。本发明可以在尾矿料中产生大量的碳酸钙沉淀物，大量的重金属离子会与碳酸钙沉淀物发生共同沉淀反应，共同沉淀物溶解度极低，不溶于流动液体，因此本发明方法对尾矿料重金属污染有着一定的修复作用。
Method for improving strength of tailing material by generating calcium carbonate precipitate through chemical induction
The invention discloses a method for improving the strength of a tailing material by generating calcium carbonate precipitate through chemical induction, which comprises the following steps: drying the tailing material in a drying oven at 105 DEG C for 24 hours, slowly pouring a calcium chloride solution into the dried tailing material, uniformly mixing, and standing for 1 hour; slowly pouring the sodium carbonate solution into the mixture of the tailing material and the calcium chloride solution, uniformly stirring, and standing and curing for 24 hours after stirring. According to the method, a large number of calcium carbonate precipitates can be generated in the tailings, a large number of heavy metal ions and the calcium carbonate precipitates are subjected to a co-precipitation reaction, and the co-precipitates are extremely low in solubility and insoluble in flowing liquid, so that the method has a certain repairing effect on heavy metal pollution of the tailings.
本发明公开了一种化学诱导生成碳酸钙沉淀提高尾矿料强度的方法，包括：将尾矿料置于105℃烘箱内烘干24小时，将氯化钙溶液缓慢倒入烘干后的尾矿料中，并拌和均匀，静置1小时；再将碳酸钠溶液缓慢倒入尾矿料和氯化钙溶液的混合物中，并拌和均匀，搅拌完成后静置养护，养护时间为24小时。本发明可以在尾矿料中产生大量的碳酸钙沉淀物，大量的重金属离子会与碳酸钙沉淀物发生共同沉淀反应，共同沉淀物溶解度极低，不溶于流动液体，因此本发明方法对尾矿料重金属污染有着一定的修复作用。
Method for improving strength of tailing material by generating calcium carbonate precipitate through chemical induction
一种化学诱导生成碳酸钙沉淀提高尾矿料强度的方法
ZHANG YIJIANG (author) / CHEN SHENGSHUI (author) / FU ZHONGZHI (author) / ZHONG QIMING (author) / JI ENYUE (author) / ZHANG NAN (author) / LIU WENPENG (author) / HAN SHAOYANG (author) / CHEN CHENGHAO (author) / XU SIYUAN (author)
2024-05-03
Patent
Electronic Resource
Chinese
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