Process for the preparation of a catalyst for the oxidation of mercaptans to disulfides, and use of this catalyst in the sweetening of petroleum distillates

摘要

1. A process for manufacturing a catalyst, for oxidizing mercaptans to disulfides, consisting of at least one metal complex (the metal being selected from the group consisting of cobalt, nickel, cooper and zinc) of ethylene diamine tetracetic acid or its sodium salt, said complex being directly fixed on a basic anion exchange resin, the process being characterized by a two-step operation of : (a) forming said metal complex of ethylene diamine tetracetic acid or of its sodium salt by reacting a salt of metal selected from the group consisting of nickel, copper, zinc and cobalt with ethylene diamine tetracetic acid or its sodium salt. (b) exchanging the resultant complex on a basic anion exchange resin.