Method of treating radioactive waste water
Patent 4476048 Issued on October 9, 1984. Estimated Expiration Date: 
March 15, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 15, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3507801 Process for handling and solidification of radioactive wastes from pressurized water reactors Patent #: 4253985 InventorsAssigneeApplicationNo. 06/358185 filed on 03/15/1982US Classes:588/20Treating radioactive liquidExaminersPrimary: Kyle, Deborah L.Attorney, Agent or FirmInternational ClassesG21F 9/06 (20060101)G21F 9/08 (20060101) Foreign Application Priority Data1981-03-18 DEAbstractRadioactive waste water containing boric acid is concentrated in an evaporator to which an alkali is added to maintain a substantially neutral pH. The boric acid is sedimented out by cooling the solution and an acid is added to the latter to increase the solids recovery by lowering the pH. The solid sediment is vacuum distilled to yield a moist powder.Other References
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