A plumbomicrolite concentrate (PMC) was leached with the mixture of HF and H₂SO₄, HF and HNO₃ acids, respectively. Optimal conditions ensuring high recovery of tantalum and niobium (up to 99%) into solution, and radionuclides into insoluble residue were determined. Fluoride-sulfuric acid and fluoride-nitric acid schemes were proposed for PMC leaching by an extractive separation of tantalum form niobium, lead and impurities, and production of high-purity tantalum compounds. Octanol-1 was used as an extractant. Optimal conditions for production of high-purity tantalum strip solutions were defined for all stages (extraction-scrubbing-stripping). Produced tantalum compounds, such as tantalum pentoxide and potassium heptafluotanthalate, comply with the norms for high-purity substances in terms of impurities content. Final choice of the PMC processing scheme is determined by its profitability.

用HF和H ₂ SO ₄，HF和HNO ₃的混合物浸出铅微粉精矿（PMC）酸。确定了确保钽和铌（至多99％）到溶液中的高回收率以及放射性核素成不溶性残留物的最佳条件。提出了氟-硫酸和氟-硝酸方案，用于通过萃取分离钽形式的铌，铅和杂质，以及生产高纯度钽化合物的方法进行PMC浸出。辛醇-1用作提取剂。在所有阶段（萃取－擦洗－汽提）中定义了生产高纯度钽带溶液的最佳条件。生产的钽化合物，如五氧化二钽和七氟噻吩钾盐，在杂质含量方面符合高纯度物质的规范。PMC处理方案的最终选择取决于其盈利能力。