PROCESS OF VITRIFICATION OF LIQUID HIGH-ACTIVITY WASTE Russian patent published in 1994 - IPC

Abstract SU 1746831 A1

FIELD: nuclear technology. SUBSTANCE: process is designed for processing of liquid high-activity waste formed by hydrometallurgical methods of regeneration of irradiated nuclear fuel. Vitrification of nonfractional liquid waste as well as of individual fractions is performed into borosilicate glass with high capacity for oxides of cesium-137 and strontium-90. For this boron carbide and amorphous silica which are difficult to solve in water and nitric acid and which do not have any ballast components are added to them. Then produced suspension is subjected to calcification followed by vitrification. EFFECT: enhanced efficiency of process, improved operational safety.

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SU 1 746 831 A1

Authors

Strel'Nikov A.V.

Belov V.Z.

Kovarskaja E.N.

Dates

1994-07-15Published

1991-01-11Filed