Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal
Patent
1982-09-28
1984-10-02
Doll, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkaline earth metal
423155, 423167, 423DIG14, C01B 2522
Patent
active
044747381
ABSTRACT:
The present invention is directed to the removal of phosphorous material, such as apatite from phosphorous bearing materials, preferably those having a particle size less than 0.25 mm. The beneficiation treatment process comprises treating an aqueous phosphatic slurry with an alkaline EDTA complexing material. After contacting the aqueous mineral slurry with the complexing agent for a sufficient period of time, the divalent cation of apatite is complexed with the complexing material, which in turn releases the associated anionic species of apatite into solution for removal and recovery.
REFERENCES:
patent: 2238586 (1941-04-01), Foerster
patent: 2905526 (1959-09-01), McCullough
patent: 3437379 (1969-04-01), Dunseth
patent: 3450633 (1969-06-01), Siemers
patent: 3576661 (1971-04-01), Cochran
patent: 4042666 (1977-08-01), Rice et al.
patent: 4044107 (1977-08-01), Houghtaling
patent: 4113184 (1978-09-01), Loughrie
patent: 4177243 (1979-12-01), Schwartz et al.
patent: 4196172 (1980-04-01), Ore
patent: 4201747 (1980-05-01), Minagawa
"Methods of Soil Analysis", Part 1, 1965, C. A. Black; Published by Assn. Soc. Agron, Madison, Wis.
"Pretreatment for Mineralogical Analysis," G. W. Kunze, pp. 568-569, (1965).
Doll John
Langel Wayne A.
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