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It may also be an important additive to heterogeneous (e.g., Al 2O 3- or SiO 2-based) catalysts. The obtained high-purity materials may be used for the production of inorganic and organic Re compounds, like catalysts, e.g., methyltrioxorhenium (MTO), rhenium carbonyl (Re 2(CO) 10), and its derivatives. In this work, the production technology of high purity anhydrous rubidium perrhenate is presented. The installation to produce these compounds is located in the Instytut Metali Nieżelaznych (IMN), Gliwice, Poland. This method (for nickel(II) and cobalt(II)) has been implemented in industry practice. The ion-exchange technique proposed in this manuscript was successfully used for nickel(II) perrhenate, cobalt(II) perrhenate, chromium(III) perrhenate, and cesium perrhenate production and has been described in past works. Similar to potassium, cesium, and silver, perrhenates are characterized by low water solubility. Rubidium perrhenate is a colorless crystal with a tetragonal bipyramidal symmetry. Then, the product is purified and recrystallized. Preparation is generally based on the neutralization of perrhenic acid solution by rubidium carbonate or hydroxide in equimolar amounts, resulting in the precipitation of rubidium perrhenate. Its synthesis has so far been devoted to obtaining materials for physico-chemical property determination. In particular, there is no information on the industrial scale production of this compound.

Preparation methods of rubidium perrhenate are poorly described in scientific databases.