Hydrolysis of used ionic liquid catalyst for disposal

摘要

D835528_5.docx We provide a process and apparatus for preparing a used ionic liquid catalyst for safe 5 disposal, comprising hydrolyzing the used ionic liquid catalyst comprising an anhydrous metal halide with a basic solution at a temperature from -20'C to 90'C to produce a hydrolyzed product, evolve a hydrogen halide gas, and dissolve the hydrogen halide gas into the basic solution.