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在弱酸性环境中使用阿米多克西姆收集器有效地获取Lepidolite的受益

Chen Cheng¹, Zhiqiang Huang¹, Safarov Sayfidin Shahobidinovich²

¹Jiangxi Province Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China.

Langmuir : the ACS journal of surfaces and colloids

|January 23, 2026

概括

一种新型的阿米多克西姆集聚剂,3-多德胺基阿米多克西姆 (DPA),在酸性较弱的环境中,有效地将含量较高的勒皮多利特从正方体中分离出来. 这为使用多德胺 (DDA) 和强酸的传统方法提供了更可持续的替代方案.

科学领域:

矿产加工和提取性金矿产加工和提取性金
材料科学材料科学材料科学
绿色化学绿色化学

背景情况:

越来越多的金属需求需要高效的勒皮多利特提取.
传统的十二胺 (DDA) 采集器需要恶劣的酸性条件 (pH ~2) 来使皮石与正管酶分离,从而导致设备腐蚀和废水问题.
在较温和的条件下,DDA的有限选择性阻碍了有效的回收.

研究的目的:

为了合成和评估一种新型的阿米多克西姆收集器,3-多德西胺基阿米多克西姆 (DPA),用于选择性勒皮多利特浮动.
在各种条件下比较DPA与DDA的性能.
为了研究DPA在勒比石和正角石表面上的分离机制.

主要方法:

合成3-多德西胺胺基胺 (DPA).
使用DPA和十二胺 (DDA) 收集器进行单个和混合矿物浮动试验.
使用接触角测量,泽塔电位和FTIR光谱法进行表面表征.
使用量子化学计算进行理论分析.

主要成果:

在pH值6.0下,DPA表现优越,浮动91.00%的勒皮多利特和85.50%的正角,超过了DDA (77.71%的勒皮多利特,90.02%的正角).
一个DPA和六甲酸盐 (SHMP) 系统实现了Li2O度等级3.87%,在pH值6.0时恢复76.86%.
DPA选择性地增强了勒皮多石的表面接触角度,达到78° (相对于正角石的40°),表明优先吸附.
量子化学计算显示,与DDA相比,DPA具有更强的静电相互作用和有利的电子结构,可以在Lepidolite上吸附.

结论:

合成的DPA采集器使得在弱酸性环境 (pH 6.0) 中,能够有效地将勒皮多利特与整骨质分离出来.
DPA-SHMP系统为金属回收提供了一个有希望的,更环保的替代方案,减轻了与强酸使用相关的问题.
通过实验和理论数据支持的DPA在Lepidolite上的增强吸附,支持其作为选择性收集器的有效性.

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