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上海化工研究院开发成功以过量硫醇与氯化钾反应制硫酸氢钾、硫醇溶液,并与稀磷酸混合后在管道反应器中进行氨化反应,制取高浓度无氯(硫酸钾)复合肥的新工艺。该技术的核心是在一根体积很小、结构简单的反应管中进行氨和磷酸的反应,利用反应生成的热量能有效地雾化料浆及蒸发水分,从而使到达转鼓造粒机内物料床上的料浆含有适宜的水分,
Shanghai Chemical Industry Research Institute successfully developed with excess mercaptan and potassium chloride reaction of potassium hydrogen sulfate, mercaptan solution, and mixed with dilute phosphoric acid in the pipeline reactor for ammoniation, the preparation of high concentrations of chlorine-free (potassium sulfate) New technology of compound fertilizer. The core of this technology is the reaction of ammonia and phosphoric acid in a small and simple reaction tube. The heat generated by the reaction can effectively atomize the slurry and evaporate the water so as to reach the inside of the drum granulator Slurry on the material bed contains suitable moisture,