从真实化物和硫尿素液溶液中对活性炭进行黄金吸附的评估
Hugo Romero1, Claudio Suarez2,3, Nelson Salazar2
1Technical University of Machala, Chemical Engineering School, Electroanalytical Applications and Bioenergy Research Group, Machala, Postcode 070102, Ecuador.
Heliyon
|June 6, 2024
概括
这项研究比较了使用化物和硫尿素溶液中的活性炭进行黄金回收. 黄金化物复合物对活性炭的吸附率高于黄金氨酸复合物.
科学领域:
- 金工程 金工程 金工程
- 吸附科学 吸附科学
- 环境化学环境化学
背景情况:
- 在采矿中,从浸溶液中回收黄金至关重要.
- 活性炭是黄金加工中常见的吸附剂.
- 比较化物和尿素的漏效率对于流程优化很重要.
研究的目的:
- 评估活性炭的吸附效率,以从化物和硫尿素溶液中回收黄金.
- 分析操作参数对黄金吸附的影响.
- 为了比较金化物和金尿素复合物的吸附率.
主要方法:
- 使用卡尔碳DG-11 6X12活性炭的吸附实验.
- 不同的参数:浸出剂度,动速度,碳剂量和初始黄金度.
- 控制参数:密度,固体百分比,pH,温度和溶液潜力.
- 使用质量转移和弗洛伊德利希异热模型进行数据分析.
主要成果:
- 活性炭有效地从化物和硫尿素溶液中吸附黄金.
- 吸附率受到运行参数的影响,例如碳剂量和黄金度.
- 黄金二化物复合物表现出明显更高的吸附率在活性炭与黄金-尿素复合物相比.
结论:
- 活性炭是一种可行的吸附剂,用于从两个漏系统中回收黄金.
- 吸附机制遵循质量转移和弗洛伊德利希异热模型.
- 化物洗提供了一个更有效的途径,通过活性碳吸附恢复黄金,而不是尿素洗.
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