Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1991-02-22
1992-07-28
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
75726, 204150, 210719, 210724, 210737, 210912, C02F 162
Patent
active
051338734
ABSTRACT:
This invention relates to a process for removing copper ions from highly acidic waste water generated during the manufacture of dyes or pigments or intermediates thereof. The waste water is exposed at a pH less than about 1 to a bed of suspended iron particles, preferably a fluidized bed of iron particles, having a particle size of from about 200 to about 950 micrometers.
REFERENCES:
patent: 3154411 (1972-03-01), Back et al.
patent: 3766036 (1973-10-01), McKaveney
patent: 3857703 (1974-12-01), McGriffen
patent: 3905827 (1975-09-01), Goffredo et al.
patent: 3922224 (1975-11-01), Lewandowski
patent: 3985554 (1976-10-01), McCoy
patent: 4096064 (1978-06-01), du Fresne
patent: 4152229 (1979-05-01), Soltys et al.
patent: 4163716 (1979-08-01), Turnbull
patent: 4194973 (1980-03-01), Smith
patent: 4244795 (1981-01-01), Raats et al.
patent: 4280887 (1981-07-01), Konstantouros
patent: 4740244 (1988-04-01), Williams
patent: 4950326 (1990-08-01), Holly
Murray, "A Sacrificial Metal Corrosion Control Process;" Water & Sewage Works Jan. 1966, pp. 19-26.
O. P. Case, "Metallic Recovery from Waste Water Utilizing Cementation" in Environmental Protection Tech. Series EPA-670/2-74-008 (Jan., 1974).
F. S. Wartman and A. H. Roberson, "Precipitation of Copper from an Acid Mine Water" in Report of Investigations R.I. 3746, Bureau of Mines, U.S. Dept. of Interior (1944).
H. V. Winchell, "Precipitation of Copper from Mines Waters" (letter) in Mining & Scientific Press, 104, 314 (1912).
R. M. Nadkarni et al., "A Kinetic Study of Copper Precipitation on Iron--Part I" in Trans. Metallurgical Soc. AIME, 239, 581-585 (1967).
R. M. Nadkarni and M. E. Wadsworth, "A Kinetic Study of Copper Precipitation on Iron: Part II" in Trans. Metallurgical Soc. AIME, 239, 1066-1074 (1967).
W. W. Fisher and R. D. Groves, "Copper Cementation in a Revolving-Drum Reactor, A Kinetic Study" in Report of Investigations R.I. 8098, Bureau of Mines, U.S. Department of Interior (1976).
P. H. Strickland and F. Lawson, "The Cementation of Metals from Dilute Aqueous Solution" in Proc. Aust. Inst. Min. Met., No. 236, 71-79 (1971).
A. E. Back, J. Metals, 19, 27-29 (1967).
K. Kubo et al., J. Chem. Eng. Japan, 12, 495, 497 (1979).
W. W. Fisher, Hydrometallurgy, 16, 55-67 (1986).
Catlin Joseph C.
Ellis Margaret D.
Good James J.
Putnam Mark A.
Tonks Neal E.
Gil Joseph C.
Henderson Richard E. L.
Hruskoci Peter
Miles Inc.
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