METHOD FOR PRODUCTION OF STARTING BRIQUETTE FOR ISOLATING RESPIRATORS Russian patent published in 2000 - IPC

FIELD: production of chemical substances used in isolating respirators on chemically bound oxygen. SUBSTANCE: the method consists in preparation of mixture by mixing of oxygen generating substance and activating agents and its forming in briquettes of various configuration, depending on the type of the isolating respirator. Sodium superoxide and potassium superoxide are used as oxygen generating substance, and aluminium and potassium bisulfate are used as activating agents. Potassium bisulfate is preliminarily subjected to thermal treatment in the presence of a substance selected from the group of sodium superoxide or potassium superoxide, sodium or potassium hydroxide. The mixture is prepared in two stages: prepared in the first stage is the mixture of heat-treated potassium and aluminium bisulfate, in the second stage the obtained mixture is introduced in the oxygen generating substance. EFFECT: enhanced capacity, safety and stability with respect to the end product. 1 ex