Method to synthesize dense crystallized sodalite pellet for immo

Details Method to synthesize dense crystallized sodalite pellet for immo Method to synthesize dense crystallized sodalite pellet for immo

1992-09-11

1994-08-23

Walsh, Donald P.

Hazardous or toxic waste destruction or containment

Destruction or containment of radioactive waste

By fixation in stable solid media

588252, 423118, 423700, 423DIG32, 502 76, 210682, G21F 916

Patent

active

053405064

ABSTRACT:
A method for immobilizing waste chloride salts containing radionuclides such as cesium and strontium and hazardous materials such as barium. A sodalite intermediate is prepared by mixing appropriate amounts of silica, alumina and sodium hydroxide with respect to sodalite and heating the mixture to form the sodalite intermediate and water. Heating is continued to drive off the water to form a water-free intermediate. The water-free intermediate is mixed with either waste salt or waste salt which has been contacted with zeolite to concentrate the radionuclides and hazardous material. The waste salt-intermediate mixture is then compacted and heated under conditions of heat and pressure to form sodalite with the waste salt, radionuclides and hazardous material trapped within the sodalite cage structure. This provides a final product having excellent leach resistant capabilities.

REFERENCES:
patent: 2951793 (1960-09-01), Hansen
patent: 3674709 (1972-07-01), Barrer et al.
patent: 4020147 (1977-04-01), Shidlovsky
patent: 4028265 (1977-06-01), Barney et al.
patent: 4125591 (1978-11-01), Lindsley
patent: 4160011 (1979-07-01), Estes et al.
patent: 4229317 (1980-10-01), Babad et al.
patent: 4247524 (1981-01-01), Leonard
patent: 4289629 (1981-09-01), Andrews
patent: 4297304 (1981-10-01), Scheffler et al.
patent: 4596647 (1986-06-01), Miller et al.
patent: 4661291 (1987-04-01), Yamasaki et al.
patent: 4808318 (1989-02-01), Komarneni et al.
patent: 4880506 (1989-11-01), Ackerman et al.

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