Production of hydrogen peroxide

Claim 1

A PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE BY ALTERNATE REACTIONS OF REDUCTION AND OXIDATION BY AN OXYGEN-CONTAINING GAS OF AN ALKYLANTHRAQUINONE DISSOLVED IN A LIQUID, COMPRISING EFFECTING SAID REDUCTION WITH A GAS RICH IN HYDROGEN, IN THE PRESENCE OF A REDUCED METAL CATALYST DISTRIBUTED INSIDE AN INERT SUPPORT, SAID CATALYST AND SUPPORT BEING PREPARED BY MIXING AND CRUSHING A NICKEL COMPOUND REDUCTIBLE BY HYDROGEN WITH A REFRACTORY CEMENT CONTAINING SILICA, ALUMINA AND LIME, BY MIXING THE RESULTING POWDER WITH A MIXTURE OF WATER, HYDROGEN PEROXIDE AND A TENSIO-ACTIVE COMPOUND, BY CRUSHING THE SOLID OBTAINED AFTER HARDENING, THEN REDUCING THE NICKEL COMPOUND IN A STREAM OF A GAS RICH IN HYDROGEN.