US3715316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor safety spray solution base-borate
Assignee: United States Atomic Energy Commission
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Filing: 1971-01-28
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Granted: 1973-02-06
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Expires: 1991-01-28
Abstract
Abstract A nuclear reactor safety spray solution comprising an aqueous basic borate solution containing up to 1 volume percent sodium thiosulfate and an effective quantity of a metal salt which enhances the reaction rate of said solution with an organic iodide such as methyl iodide in contact with said solution, in comparison to the reaction rate between said iodide in contact with a solution which does not contain a rate-accelerating concentration of said salt.
Inventors
- 👤 B Soldano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:14
CPC Classifications
G; G21; G21C; G21C9/00; G21C9/004; G21C9/012; G21C9/016; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A nuclear reactor safety spray solution consisting essentially of an aqueous base borate solution consisting of a solution of boric acid (about 3,000 ppm boron) adjusted to a pH of about 9 with sodium hydroxide containing up to 1 volume percent sodium thiosulfate and an effective quantity of a metal salt which enhances the reaction rate of said solution with an organic iodide such as methyl iodide, the metal moiety of the effective salt being selected from the group consisting of nickel, cobalt, and mercury in the +2 oxidation state, gadolinium and europium in the +3 oxidation state, and mercury in the +1 oxidation state.
Claim 2
Dependent Claim
105 words
A nuclear reactor safety spray solution consisting essentially of an aqueous base borate solution consisting of a solution of boric acid (about 3,000 ppm boron) adjusted to a pH of about 9 with sodium hydroxide containing up to 1 volume percent sodium thiosulfate and an effective quantity of a metal salt which enhances the reaction rate of said solution with an organic iodide such as methyl iodide, the metal moiety of the effective salt being selected from the group consisting of nickel, cobalt, and mercury in the +2 oxidation state, gadolinium and europium in the +3 oxidation state, and mercury in the +1 oxidation state.
References Cited (Backward Citations)
US3630942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |