Research is conducted to determine the effect of production parameters on osmium extraction during leaching roasting cinders containing osmium and rhenium from copper production cakes with water, hydrogen peroxide and various oxidizing agents. The main goal is to maximize osmium extraction into the gas phase for subsequent conversion into osmium sulfide. Material leaching is performed within a unit assembled for this purpose. During leaching osmium is distributed among the leaching products: gas phase, leaching solutions, and leaching cakes. Results of the work and their novelty: the effect of temperature and duration on the extraction of osmium during water leaching of cinder is studied. The activity of 11 oxidizing agents during cinder leaching is investigated; an oxidizing agent close to the optimum is selected for transferring osmium tetroxide into the gas phase and its absorption by sodium alkali. Oxidizing agent consumption during cinder leaching in various regimes is determined.

研究了用水、过氧化氢和各种氧化剂从铜生产饼中浸出含有锇和铼的焙烧渣时生产参数对锇提取的影响。主要目标是最大限度地将锇提取到气相中，以便随后转化为硫化锇。材料浸出是在为此目的组装的单元内进行的。在浸出过程中，锇分布在浸出产物中：气相、浸出溶液和浸出饼。工作成果及其新颖性：研究了温度和持续时间对煤渣水浸过程中锇提取的影响。研究了11种氧化剂在渣浸出过程中的活性；选择接近最佳的氧化剂将四氧化锇转入气相并被钠碱吸收。确定了在各种制度下煤渣浸出过程中的氧化剂消耗量。