RECOVERY METHOD OF RHODIUM

To provide a method of efficiently recovering rhodium from a hydrochloric acid acidic solution containing rhodium and tellurium.SOLUTION: A recovery method of rhodium includes a rhodium substitution process in which the hydrochloric acid acidic solution containing rhodium and tellurium is heated, after sulfur dioxide or sulfite is added and the tellurium concentration is reduced to 300 mg/L or lower, followed by contacting with metal copper to generate precipitate containing rhodium, and a process of recovering generated rhodium-containing particles in which after the rhodium-containing precipitate generated in the rhodium substitution process is separated, the rhodium-containing precipitate is contacted with sulfuric acid solution, followed by heating, the generated rhodium-containing particles are recovered.SELECTED DRAWING: None 【課題】ロジウム及びテルルを含む塩酸酸性液からロジウムを効率的に回収する方法を提供する。【解決手段】ロジウム及びテルルを含む塩酸酸性液を加熱し、二酸化硫黄または亜硫酸塩を添加して、テルル濃度を３００ｍｇ／Ｌ以下にした後、金属銅と接触させてロジウム含有沈殿物を生成するロジウム置換工程と、前記ロジウム置換工程で生成したロジウム含有沈殿物を分離し、前記ロジウム含有沈殿物を硫酸水溶液と接触させ、加熱した後、生成したロジウム含有粒子を回収する回収工程と、を含むことを特徴とするロジウムの回収方法。【選択図】なし