Patent · US Expired

Process for concentrating radioactive combustible waste

US4383888A · kind A · utility

5Cited by
0References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 21, 1980
Grant dateMay 17, 1983
Priority date
Expiry dateApr 21, 2000

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S159/12
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

In the concentration of radioactive combustible waste comprising evaporating and drying a radioactive combustible waste slurry by a thin film drier, the radioactive combustible wastes and an incombustible material, such as sodium sulfate, etc. obtained from a nuclear reactor effluent are mixed together in an amount of not more than 70% by weight, preferably 43 to 70% by weight, of radioactive combustible waste on the basis of a mixture on dry basis, and the mixture is fed to the thin film drier and evaporated and dried therein. A risk of powder explosion and fire is prevented in the drying step thereby.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.