Preparation of Rhodium Triiodide with Rhodium Recovered from Acetic Acid Synthesis by Corbonyl

The current recycling status of rhodium catalysed was introduced.The method of preparation of rhodium triiodide with rhodium recovered from exclusion waste water of syntheis of acetic acid.Three preparation methods of rhodium triiodide were comperaed,and the shortcomings of these methods,and the effect of impurity to rhodium purity were analyzed.The development prospect of rhodium recovery in acetic acid industry was proposed.