METHOD FOR OBTAINING OF phosphoprous-containing GASES

摘要

A method for obtaining of phosphoprous-containing gases comprises the reduction of phosphate raw materials in the presence of alumina with natural gas at increased temperatures. Phosphate raw materials is mixed with alunite and alumina in the molar ratio: Са(РО):КАl(SО):АlО=1:2.5÷3:3÷8, and reduced at temperature of 500-850 °С. Gaseous products are colled and phosphorous and sulphides thereof are condensed.