Catalysts LF671 is a kind of Claus sulfur recovery catalyst with the functions of both high activity and protective "leaked O2" removal. Its physi-chemical properties and technical indexes have reached world advanced level. It's first created in China and is in the leading position. Combined with Al2O3 catalyst LF600 or Al2O3 based catalyst LF631, the total sulfur conversion can be improved by 1-1.7% in the same plant and under same process conditions. LF671 is specifically suitable for sulfur recovery plants with large variations of flow rate and/or H2S content in acidic gas.
Industrial application has proved the superior performances of LF671. Its properties and attentions that should be paid to are listed as follows: