A process comprising reacting hydrogen and oxygen in the presence of a noble metal, a thiol or thiolate, and a solvent is disclosed. The thiol or thiolate improves the hydrogen peroxide yield. The produced hydrogen peroxide may be used to oxidize organic compounds in the presence of an oxidation cat
A process comprising reacting hydrogen and oxygen in the presence of a noble metal, a thiol or thiolate, and a solvent is disclosed. The thiol or thiolate improves the hydrogen peroxide yield. The produced hydrogen peroxide may be used to oxidize organic compounds in the presence of an oxidation catalyst.
대표청구항▼
I claim: 1. A process comprising reacting hydrogen and oxygen in the presence of a noble metal, a thiol or thiolate, and a solvent to produce hydrogen peroxide. 2. The process of claim 1 wherein the noble metal is selected from the group consisting of gold, silver, platinum, palladium, iridium, r
I claim: 1. A process comprising reacting hydrogen and oxygen in the presence of a noble metal, a thiol or thiolate, and a solvent to produce hydrogen peroxide. 2. The process of claim 1 wherein the noble metal is selected from the group consisting of gold, silver, platinum, palladium, iridium, ruthenium, rhenium, rhodium, osmium, and mixtures thereof. 3. The process of claim 1 wherein the noble metal is palladium, gold, or a palladium-gold mixture. 4. The process of claim 1 performed in the presence of a carrier. 5. The process of claim 1 wherein the noble metal is supported on the carrier. 6. The process of claim 4 wherein the thiol is tethered to the carrier. 7. The process of claim 4 wherein the carrier is selected from the group consisting of silicas, aluminas, titanias, silica-aluminas, silica-titanias, zeolites, clays, carbons, ion-exchange resins, and mixtures thereof. 8. The process of claim 1 wherein the noble metal is reduced prior to being introduced to the process. 9. The process of claim 8 wherein the noble metal is reduced with hydrogen. 10. The process of claim 1 wherein the solvent is selected from the group consisting of alcohols, ethers, esters, ketones, carbon dioxide, water, and mixtures thereof. 11. The process of claim 1 wherein the reaction is performed in the presence of a hydrogen peroxide stabilizer. 12. The process of claim 1 further comprising reacting an organic compound with the hydrogen peroxide in the presence of an oxidation catalyst. 13. The process of claim 12 wherein the oxidation catalyst is a transition metal zeolite. 14. The process of claim 12 wherein the oxidation catalyst is a titanium zeolite. 15. The process of claim 12 wherein the carrier is a transition metal zeolite. 16. The process of claim 15 wherein the oxidation catalyst is the transition metal zeolite. 17. The process of claim 16 wherein the transition metal zeolite is TS-1. 18. The process of claim 12 wherein the organic compound is an olefin. 19. The process of claim 12 wherein the organic compound is propylene.
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