Catalyst stones for the decomposition of concentrated hydrogen peroxide

• US 2,836,570 A
• Filed: 05/22/1953
• Issued: 05/27/1958
• Est. Priority Date: 08/19/1949
• Status: Expired due to Term

• Current Assignee: Hargrave Peers Charles
• Original Assignee: Hargrave Peers Charles
• Inventors: HARGRAVE PEERS CHARLES
• Application Number:
  US03/356,875
• Time in Patent Office: 1,831 Days
• US Class Current: 502/227
• CPC Class Codes: B01J 23/26 Chromium
• CPC Class Codes: B01J 23/34 Manganese
• CPC Class Codes: B01J 23/835 with germanium, tin or lead
• CPC Class Codes: B01J 37/00 Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
• CPC Class Codes: B01J 37/0009 Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
• CPC Class Codes: C01B 13/0214 Hydrogen peroxide

Claims

1. PROCESS FOR PRODUCTION OF ROBUST ABRASION-RESISTANT CATALYST STONES FOR THE DECOMPOSITION OF HYDROGEN PEROXIDE WHICH COMPRISES FORMING A PASTE FROM A MIXTURE COMPRISING SUBSTANTIALLY EQUAL PROPORTIONS OF AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM IODIDE, POTASSIUM PERMANGANATE, POTASSIUM CHROMATE AND POTASSIUM DICHROMATE, AND LESSER PROPORTIONS OF LEAD PEROXIDE, LEAD MONOXIDE AND AN INERT REFRACTORY CEMENT AND WATER, SHAPING THE PASTE INTO PELLETS, ALLOWING THE PELLETS TO DRY AND HARDEN, AND FINALLY CONSOLIDATING THE PELLETS BY HEAT TREATMENT TO SINTER THE LEAD OXIDES TO FORM A CATALYTICALLY ACTIVE BINDER.