PREPARATION METHOD OF LIQUID HIGH-ACTIVE WASTE FOR VITRIFICATION Russian patent published in 2011 - IPC G21F9/16 

FIELD: power industry.

SUBSTANCE: preparation method of liquid high-active wastes for vitrification so that borosilicate glass is obtained consists in mixing of waste with liquid glass-forming element. First, nitric acid is added to liquid waste. Hydrous kremnezol is used as liquid glass-forming element. Mixing of liquid waste with hydrous kremnezol is performed on the basis of borosilicate glass with content of silicon oxide of 35-55 wt %.

EFFECT: improving mixing quality of waste with glass-forming element, providing continuous supply of mixture to the melting device without formation of any suspension plugs in pipelines, and achieving homogeneity of glass mass and final product, achieving high chemical stability of the obtained glass, and improving safety and reliability of vitrification of waste.

3 cl, 3 ex, 4 tbl