Abstract—The processes occurring during autoclave oxidation leaching of refractory sulfide gold ore concentrates are discussed. As a result of them, hard-to-remove deposits (crust), which decrease the productivity of the equipment, form on all internal surfaces of autoclaves. The phase composition of the deposits is shown to change from section to section in an autoclave, and the main component of the deposits is found to be potassium jarosite KFe₃(SO₄)₂(OH)₆. The mechanism of formation of deposits is analyzed and possible methods to prevent them are discussed.

中文翻译：

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难处理硫化金精矿高压釜氧化浸出沉积物的形成

摘要——讨论了难选硫化金精矿高压釜氧化浸出过程中发生的过程。因此，高压釜的所有内表面都会形成难以去除的沉积物（结皮），从而降低设备的生产率。沉积物的相组成在高压釜中随区段的变化而变化，并且发现沉积物的主要成分是黄钾铁矾钾KFe ₃ (SO ₄ ) ₂ (OH) ₆。分析了沉积物的形成机制，并讨论了预防沉积物的可能方法。