METHOD OF PRODUCING POWDERED BISMUTH (III) OXIDE

摘要

FIELD: chemistry.SUBSTANCE: invention can be used in chemical engineering. The method of producing powdered bismuth (III) oxide involves oxidation of bismuth with oxygen in a revolving reactor with a controlled atmosphere. A mixture of bismuth metal and bismuth oxide powder is oxidised. Bismuth oxide powder is used in amount of 0.5-5.0 wt %. At the initial phase, the mixture is oxidised at temperature of 300-350°C, which is subsequently raised to 500°C.EFFECT: invention simplifies the method of producing powdered bismuth (III) oxide while maintaining high output and quality of the product.1 ex