Chlorinated and fluorinated bimetallic catalyst and its use in aromatics hydrogenation

摘要

A catalyst has at least one amorphous oxide matrix containing chlorine, fluorine and at least two different Group 8 metals. The fluorine forms ≥ 1.5 wt % of the catalyst Independent claims are included for the following: (a) forming the above catalyst by contacting each matrix first with fluorine and then successively or simultaneously with chlorine and the metals. (b) Using the above catalyst to hydrogenate aromatic hydrocarbons Preferred Features: The fluorine is 1.8 - 15 wt% of the catalyst, 78 - 98.3 wt% oxide, 0.1 - 10 wt % chlorine and 0.1 - 10 wt % metals. One metal is selected from palladium, rhodium, nickel or cobalt and the other metal is selected from platinum, iridium, osmium or ruthenium. The ratio of the two metals is from 0.1:1 to 10:1. The oxide is alumina, silica or aluminized silica.