METHOD FOR PRODUCING METAL RUTHENIUM OR COMPOUNDS OF RUTHENIUM FROM RUTHENIA CONTAINING SOLID MATERIALS, AND ALSO ITS OR THEIR APPLICATION

摘要

1. A method of producing metallic ruthenium or ruthenium compounds from solid materials containing ruthenium or ruthenium compounds by treating the solid material with a gas stream that contains at least hydrogen halide and carbon monoxide, preferably hydrogen chloride and carbon monoxide, at an elevated temperature in the reaction zone, preferably by at least at 250 ° C, with the formation of volatile ruthenium compounds, which are carried away with the gas stream, and subsequent cooling of the saturated stream, preferably by precipitation of the ruthenium compounds in a precipitation zone that is colder than the reaction zone, especially on cold deposition surfaces, and / or absorption in solutions and / or adsorption on carrier materials. ! 2. The method according to claim 1, characterized in that the content of hydrogen halide in the hydrogen halide / CO mixture in the gas stream entering the reaction zone is from 0.1 to 99.9 vol.%, Preferably from 1 to 99 vol.%, particularly preferably 10 to 90 vol.% and most preferably 30 to 70 vol.%. ! 3. A method according to claim 1, characterized in that the content of carbon monoxide in the hydrogen halide / CO mixture in the gas stream entering the reaction zone is from 0.1 to 99.9 vol.%, Preferably from 1 to 99 vol.% , particularly preferably 10 to 90 vol.%, and most preferably 30 to 70 vol.%. ! 4. The method according to claim 1, characterized in that the sum of both components, hydrogen halide and CO, in the gas stream entering the reaction zone is at least 0.2 vol.%, Preferably at least 2 vol. %, particularly preferably at least 20 vol.% and most preferably at least 60 vol.%. ! 5. The method according to claim 1, different