Wet flue gas desulfurization is now a widely used method for SO₂ abatement, but an efficient adsorbent with low cost is recognized as being an important prerequisite for its industrial application. Herein, wet flue gas phosphate rock desulfurization technology is reported to eliminate SO₂ from phosphorus chemical processes, and the technology has been employed in industrial application successfully. Because phosphate rock was chosen as the raw material from the phosphorus chemical process, its application can reduce the desulfurization cost. In addition, the produced sulfuric acid in the present desulfurization system can provide replacement of sulfuric acid required in typical phosphorus chemical activity. Accordingly, this desulfurization technology is of environmental and economic importance and also exhibits potential in treating other industrial SO₂ pollution processes. Characterizations of the fresh and spent phosphate rock samples as well as analysis of the spent solution were conducted. Subsequently, the reaction processes, the desulfurization mechanism, and the deactivation of the phosphate rock adsorbent were proposed.

中文翻译：

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磷矿泥有效去除烟道气中SO ₂的反应机理研究

如今，湿法烟气脱硫是减少SO _2的一种广泛使用的方法，但是公认的是低成本的高效吸附剂是其工业应用的重要先决条件。这里，据报道湿法烟气磷酸盐岩脱硫技术消除了SO _2。从磷化学工艺中提取，该技术已成功应用于工业中。由于从磷化工过程中选择了磷矿石作为原料，其应用可以降低脱硫成本。另外，在本脱硫系统中产生的硫酸可以提供典型的磷化学活性所需的硫酸的替代。因此，该脱硫技术具有环境和经济重要性，并且在处理其他工业SO _2方面也显示出潜力。污染过程。进行了新鲜和废磷酸盐岩样品的表征以及废溶液的分析。随后，提出了反应过程，脱硫机理和磷酸盐岩吸附剂的失活。