Extracting metal ions with diphosphonic acid, or derivative ther

Details Extracting metal ions with diphosphonic acid, or derivative ther Extracting metal ions with diphosphonic acid, or derivative ther

1992-06-10

1994-07-26

Miller, Edward A.

Hazardous or toxic waste destruction or containment

Destruction or containment of radioactive waste

Treating radioactive liquid

423 9, 423 10, 423 11, 423 215, 423 24, 423 42, 423112, 423139, 423140, 423122, 423157, 423158, 423181, 423184, 4236585, C01G 5600, C01G 100

Patent

active

053325311

ABSTRACT:
Thermodynamically-unstable complexing agents which are diphosphonic acids and diphosphonic acid derivatives (or sulphur containing analogs), like carboxyhydroxymethanediphosphonic acid and vinylidene-1,1-diphosphonic acid, are capable of complexing with metal ions, and especially metal ions in the II, III, IV, V and VI oxidation states, to form stable, water-soluble metal ion complexes in moderately alkaline to highly-acidic media. However, the complexing agents can be decomposed, under mild conditions, into non-organic compounds which, for many purposes are environmentally-nondamaging compounds thereby degrading the complex and releasing the metal ion for disposal or recovery. Uses for such complexing agents as well as methods for their manufacture are also described.

REFERENCES:
patent: 2686803 (1954-08-01), Stayner
patent: 3520808 (1970-07-01), Light
patent: 3617576 (1971-11-01), Kerst
patent: 3625982 (1971-12-01), Christensen
patent: 3641126 (1972-02-01), Prentice
patent: 3808237 (1974-04-01), Littleton
patent: 3940436 (1976-02-01), Kerst
patent: 3993728 (1976-11-01), Schulz
patent: 4075291 (1978-02-01), Redmore et al.
patent: 4254063 (1981-03-01), Becker
patent: 4293529 (1981-10-01), Reese et al.
patent: 4302429 (1981-11-01), Lawes et al.
patent: 4316877 (1982-02-01), Tunick et al.
patent: 4460548 (1984-07-01), Sturtz
patent: 4464346 (1984-08-01), Sturtz et al.
patent: 4499833 (1985-02-01), Grantham
patent: 4579720 (1986-04-01), Budnick
patent: 4645762 (1987-02-01), Biere et al.
patent: 4656012 (1987-04-01), Jdid et al.
patent: 4733005 (1988-03-01), Schmidt et al.
patent: 4762649 (1988-08-01), Coleman
patent: 4828766 (1989-05-01), Kleeman et al.
patent: 4876248 (1989-10-01), Breliere et al.
patent: 4908138 (1990-03-01), Blum et al.
patent: 4927814 (1990-05-01), Goll et al.

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