Dissolution Characteristics of Metal Oxides in Water Cooled Reactors

Smee, J.L.

doi:10.1007/978-1-4684-3710-2_25

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1981

1991

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Cited by 6 publications

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“…Crud structure and composition depend on the primary circuit location. Generally the crud is composed of Ni, Fe, Cr substituted spinels and mixed oxides (Smee 1980). A steam generator tubing film (Johnson, Griggs, and Kustas 1981) consisted of a compact inner layer of fine platelets with a sparse outer population of large superficial particles.…”

Section: Pwrsmentioning

confidence: 99%

Criteria for the evaluation of a dilute decontamination demonstration

FitzPatrick¹,

Divine²,

Hoenes³

et al. 1981

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Section: Pwrsmentioning

confidence: 99%

Criteria for the evaluation of a dilute decontamination demonstration

FitzPatrick¹,

Divine²,

Hoenes³

et al. 1981

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Cost effectiveness of dilute chemical decontamination

LeSurf¹,

Weyman²

1983

Nuclear and Chemical Waste Management

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Development of Chemical Decontamination Process with Sulfuric Acid-Cerium (IV) for Decommissioning

Suwa

Kuribayashi

Tachikawa

1986

Journal of Nuclear Science and Technology

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T h e dissolution of Cr-rich oxides in and the decontamination of contaminated specimens by sulfuric acid-Ce(N) (SC) solution have been investigated. T h e results have been compared with those by the reported typical decontamination reagents. T h e SC solution can dissolve simultaneously not only Cr but also F e and Ni in the Cr-rich oxides. T h e dissolution mainly depends on Ce(IV) concentration (1.3-10 x lo-, M) and temperature (40-90°C), but is independent of HzS04-concentration (0.2-0.5 M a t 5 x lo-, M Ce(IV)) . T h e DF is ca. 33 a t 90°C for 24 h with 0.25 M H2S04-5 x lo-, M Ce(N). Under electrolytic regeneration of Ce(lV) from Ce(III) during the decontamination, the D F is raised to 460 even a t 80°C for 24 h with 0.25 M H2S04-1.3x lo-, hi Ce(lV). T h e SC solution can be applicable to the decontamination for decommissioning of both BWR and PWR. Furthermore the combination of the chemical cleaning with an additional ultrasonic cleaning provides a promissing cleaning procedure for post-disassembly components.

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Dissolution Characteristics of Metal Oxides in Water Cooled Reactors

Cited by 6 publications

References 0 publications

Criteria for the evaluation of a dilute decontamination demonstration

Criteria for the evaluation of a dilute decontamination demonstration

Cost effectiveness of dilute chemical decontamination

Development of Chemical Decontamination Process with Sulfuric Acid-Cerium (IV) for Decommissioning

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