Catalyst and process for the direct synthesis of hydrogen peroxide
AssigneesENI S.p.A., Enichem S.p.A.
InventorsGiuseppe Paparatto, Rino D'Aloisio, Giordano De Alberti, Roberto Buzzoni
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Abstract
A description follows of a bimetallic catalyst, obtained by dispersing in sequence and alternating the precursors of the single metal components of the catalyst on a carrier, and a process for the synthesis of hydrogen peroxide by the direct reaction of hydrogen with oxygen, in a solvent medium containing a halogenated promoter and an acid promoter, in the presence of said catalyst.
Claims24
A bimetallic catalyst comprising palladium and platinum, wherein the catalyst is obtained by a process consisting of:
- a) dispersing, in sequence and alternating, at least one of a solution or a dispersion containing only one of palladium or platinum on a carrier to form a catalyst precursor;
- and then
- b) treating the catalyst precursor with a reducing agent to form the bimetallic catalyst;
- wherein drying is carried out after each of the dispersing of the solutions or dispersions.
A bimetallic catalyst comprising at least palladium and platinum, wherein the bimetallic catalyst is obtained by a process comprising:
- a) dispersing, in sequence and alternating, one or more of a solution and a dispersion containing only one of the platinum or palladium on a sulfonated activated carbon carrier to form a catalyst precursor;
- and then
- b) treating the catalyst precursor with a reducing agent to form the bimetallic catalyst;
- wherein drying is carried out after each dispersing of the solutions or the dispersions.
Dependencies are inferred from the claim text.