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本文详细描述了该法根据物料的低温氯化从黑砂中选择性回收金的方法，使用一氯化硫S2Cl2和二氯化硫SCl2的液体混合物。这种方法可确保金以AuCl8SCl4配合物盐溶液的形式或以金属的形式被提取。研究了过程的动力学和主要的物理化学参数（如密度、固液比、温度）。研究的物料是低流高铁（含Fe2O3高达70％）的石英类样品。温度不超过100℃时金回收率为90％～99％。大多数共生的组分仍在渣中。为得到金属金，浸出后所得的AuCl8SCl4盐溶液用联胺还原后缓冷。由于过程需要的温度低，金的溶解速度高，所描述的方法能量消耗非常小。氯化硫及其他试剂溶液在闭路循环中使用。
This paper describes in detail the method for the selective recovery of gold from black sand based on the cryogenic chlorination of the material, using a liquid mixture of sulfur monochloride S2Cl2 and sulfur dichloride SC12. This method ensures that the gold is extracted in the form of a solution of AuCl8SCl4 complex salt or in the form of a metal. The kinetics of the process and the major physico-chemical parameters (eg density, solid-liquid ratio, temperature) were studied. The material studied was a low-flow high-speed (up to 70% Fe2O3) quartz sample. The gold recovery rate of 90% ~ 99% when the temperature does not exceed 100 ℃. Most symbiotic components are still in the slag. In order to obtain the gold metal, the AuCl8SCl4 salt solution obtained after the leaching is slowly cooled with hydrazine reduction. Due to the low temperature required for the process and the high rate of dissolution of gold, the described method consumes very little energy. Sulfur chloride and other reagent solutions are used in closed-circuit cycles.