Process for purifying alumina by mixing a Bayer process stream c

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium

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423122, 210735, C01F 706, C01G 4900, B01D 2101

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active

06077486&

ABSTRACT:
A process for reducing the level of colloidal iron in a Bayer process stream comprises intermixing an amidoxime polymer with a Bayer process stream and separating the resultant polymer-iron complex to provide purified sodium aluminate solution.

REFERENCES:
patent: 3088798 (1963-05-01), Fetscher
patent: 3088799 (1963-05-01), Fetscher
patent: 3607140 (1971-09-01), Miller et al.
patent: 3728432 (1973-04-01), Petitjean et al.
patent: 3729542 (1973-04-01), Goheen
patent: 3796789 (1974-03-01), Adams
patent: 4713222 (1987-12-01), Owen et al.
patent: 4717550 (1988-01-01), Spitzer et al.
patent: 4767540 (1988-08-01), Spitzer et al.
A.S. Rthenberg, D.P. Spitzer, M.E. Lewellyn and H.I. Heitner, "New Reagents for Alumina Processing" Light Metals 1989 Edited by Paul G. Campbell, The Minerals, Metals & Materials Society, 1988, pp. 91-96, no month.
P. Basu, G.A. Nitowski and P.J. The, "Chemical Interactions of Iron Minerals During Bayer Digest and Clarification", Eds. J.E. Dutrizc and A.J. Monhemius, Ellis Horwood Limited, "Iron Control in Hydrometallurgy", 1986, pp. 223-244, no month.
Michael B. Colella, Sidney Siggia and Ramon M. Barnes, "Poly(acrylamidoxime) Resin for Determination of Trace Metals in Natural Waters", Anal. Chem. 1980, 52 pages 2347-2350, no month.
Hiroski Egawa, Nalan Kabay, Akinori Jyo, Masaki Hirono and Taketomi Shuto, "Recovery of Uranium from Seawater. 15. Development of Amidoxime Resins with High Sedimentation Velocity for Passively Driver Fluidized Bed Adsorbers", Ind. Eng. Chem. Res, 33, 1994, pp. 657-661, no month.
U. Schilde, H. Kraudelt, and E. Uhlemann and U. Gohlke, "Selectivity of Amidozime Polymers for the Sorption of Gallate", Separation Science and Technology, 30 (10), 1995, pp. 2245-2250, no month.
F. Vernon and T.W. Kyffin, "Chelating Ion-Exchangers Containing N-Substituted Hydroxylamine Functional Groups", Analytica Chimica Acta, 94 (1977), pp. 317-322, no month.
F.L.M. Schouteden, "Polyacrylamidoximes", Makromol Chem (1957) 24 pp. 25-49, no month.
M. B. Colella, S. Siggia and R. M. Barnes, "Synthesis and Characterization of a Poly(acrylamidoxime) Metal Chelating Resin", Anal. Chem. (1980) 52, pp. 967-972, no month.
P. A. Riveros, "Recovery of Gallium from Bayer Liquors with an Amidoxime Resin", Hydrometallurgy, 25 (1990), pp. 1-18, no month.

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