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Patent US4309305A successfully refreshed from Google Patents.
US4309305A
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In vitro removal of actinide (IV) ions
Assignee: United States Department of Energy
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Filing: 1979-08-07
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Granted: 1982-01-05
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Expires: 1999-08-07
Abstract
Abstract A compound of the formula: <IMAGE> or <IMAGE> wherein X is hydrogen or a conventional electron-withdrawing group, particularly -SO3H or a salt thereof; n is 2, 3, or 4; m is 2, 3, or 4; and p is 2 or 3. The present compounds are useful as specific sequestering agents for actinide (IV) ions. Also described is a method for the 2,3-dihydroxybenzamidation of azaalkanes.
Inventors
- 👤 Frederick L. Weitl
- 👤 Kenneth N. Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:05
CPC Classifications
C; C07; C07D; C07D257/00; C07D257/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
A method for sequestering an actinide (IV) ion in vitro which comprises treating the actinide (IV) ion with a compound of the formula: ##STR5## wherein X is hydrogen, --SO 3 H or a salt thereof, or --NO 2 ; n is 2, 3, or 4; m is 2, 3, or 4; and p is 2 or 3.
Claim 2
Independent Claim
57 words
A method for sequestering an actinide (IV) ion in vitro which comprises treating the actinide (IV) ion with a compound of the formula: ##STR5## wherein X is hydrogen, --SO 3 H or a salt thereof, or --NO 2 ; n is 2, 3, or 4; m is 2, 3, or 4; and p is 2 or 3.
Claim 3
Dependent Claim
20 words
A method for sequestering an actinide (IV) ion according to claim 1 wherein said process is carried out in vitro.
Claim 4
Dependent Claim
28 words
A method of sequestering an actinide (IV) ion in vitro according to claim 2 wherein the formula is ##STR6## and n, m, and p are 2 or 3.
Claim 5
Dependent Claim
19 words
A method of sequestering an actinide (IV) ion in vitro according to claim 2 wherein the formula is ##STR7##
Claim 6
Dependent Claim
48 words
A method according to claim 2, 3, or 4 wherein the actinide ion to be sequestered is Pu (IV), said ion being removed in vitro from a radioactive waste by treating said waste with a compound of the formula described where X is H or --SO 3 H.
Claim 7
Dependent Claim
46 words
A method according to claim 2, 3, or 4 wherein the actinide ion to be sequestered is Pu (IV), said ion being removed in vitro from a radioactive waste by treating said waste with a compound of the formula described where X is --SO 3 H.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |