There are three main preparation methods of superoxide:
① Peroxide reacts with oxygen.
② Potassium, rubidium and cesium burn in excess oxygen.
③ Oxygen is introduced into the liquid ammonia solution of potassium, rubidium and cesium.
Sodium peroxide is produced by oxidizing sodium peroxide with oxygen in an autoclave with a pressure of 13MPa and a temperature of 350 ℃.
The preparation of potassium super oxide is to replace potassium chloride with metal sodium in a stainless steel displacement kettle to obtain metal potassium with a purity of more than 97%. The molten potassium is pressed to a special spray gun and mixed with purified air before being injected into the oxidation furnace. It is burned at 230~250 ℃ to generate potassium super oxide.
