Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vb metal
Reexamination Certificate
2005-12-27
2005-12-27
Bos, Steven (Department: 1754)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group vb metal
Reexamination Certificate
active
06979429
ABSTRACT:
The processes of the present invention include mineral acid leaching of a metal containing material, such as an ore residue, containing fluoridated metal values in the presence of a complexing agent which will complex fluoride ions. The processes of the present invention provide for the separation of valuable metal, fluoride and radionuclide values from a feed material of high mineral content wherein the metals and radionuclides are present as substantially water insoluble fluorides or are trapped within a metal fluorine matrix which is substantially insoluble in typical chemical reactant systems.
REFERENCES:
patent: 2767047 (1956-10-01), Wilhelm et al.
patent: 2953453 (1960-09-01), Foos
patent: 2962372 (1960-11-01), Foos
patent: 3117833 (1964-01-01), Pierret
patent: 3300297 (1967-01-01), Field
patent: 3658511 (1972-04-01), Gustison
patent: 3712939 (1973-01-01), Capps et al.
patent: 3972710 (1976-08-01), Meyer
patent: 3976475 (1976-08-01), Markland
patent: 4155982 (1979-05-01), Hunkin et al.
patent: 4164417 (1979-08-01), Gustison
patent: 4233278 (1980-11-01), Korchnak
patent: 4234555 (1980-11-01), Pulley et al.
patent: 4278640 (1981-07-01), Allen et al.
patent: 4293528 (1981-10-01), Paul
patent: 4309389 (1982-01-01), Meyer
patent: 4320093 (1982-03-01), Volesky et al.
patent: 4412861 (1983-11-01), Kreuzmann
patent: 4446115 (1984-05-01), Endo et al.
patent: 4446116 (1984-05-01), Krismer et al.
patent: 4451438 (1984-05-01), Floeter et al.
patent: 4477416 (1984-10-01), Goddard
patent: 4536034 (1985-08-01), Otto, Jr. et al.
patent: 4654200 (1987-03-01), Nirdosh et al.
patent: 4663130 (1987-05-01), Bergman et al.
patent: 4673554 (1987-06-01), Niwa et al.
patent: 4695290 (1987-09-01), Kindig et al.
patent: 4718996 (1988-01-01), Vanderpool et al.
patent: 4743271 (1988-05-01), Kindig et al.
patent: 4753033 (1988-06-01), Kindig
patent: 4778663 (1988-10-01), Rickelton
patent: 4808384 (1989-02-01), Vanderpool et al.
patent: 4923507 (1990-05-01), Silva
patent: 5023059 (1991-06-01), Bielecki et al.
patent: 5084253 (1992-01-01), Pollock et al.
patent: 5209910 (1993-05-01), Bludssus et al.
patent: 5273725 (1993-12-01), Carlson
patent: 5384105 (1995-01-01), Carlson
patent: 5437848 (1995-08-01), Hard
patent: 5492680 (1996-02-01), Odekirk
patent: 0 041 459 (1981-06-01), None
patent: 2 438 623 (1980-01-01), None
PCT Application No. WO/90/02823, published Mar. 22, 1990.
PCT Application No. WO/95,13985, published May 26, 1995.
PCT International Appln. No. PCT/US97/04013 Search Report mailed Jul. 16, 1997.
PCT Application No. WO 94/01190, published Jan. 20, 1994.
PCT International Appln. No. PCT/US97/04089 Search Report mailed Aug. 12, 1997.
PCT International Appln. No. PCT/US97/04088 Search Report mailed Aug. 5, 1997.
“Extractive Metallurgy Of Niobium, Tantalum And Vanadium,” by C.K. Gupta, pp. 405-444, 1984, no month, International Metals Reviews, vol. 29(6).
Solvent Extraction Principles and Applications to Process Metallurgy, Part II, no date.
Radioactive Waste Disposal in the Shiprock-Type Uranium Milling Flowsheet by K.E. Tame, E.G. Valdez, and J.B. Rosenbaum.
Radium Removal From Uranium Ores and Mill Tailings by S.R. Borrowman & P.T. Brooks, no date.
The Purification of Inorganic Acids by the Amine Liquid Ion Exchange Process by D.W. Agers, J.E. House, J.L. Drobnick & C.J. Lewis, no date.
Scandium Recovery From a Tantalum Waste Residue: A Status Report by D.D. Harbuck & G.R. Palmer, U.S. Bureau of Mines, no month, 1991.
Evaluation of Scandium Oxide Production from Tantulum Processing Waste, Aug. 1993, edited by G.Kyle Green.
Scandium Saves Aluminum, Rare-earth information Center Insight, Ames Laboratory Institute For Physical Research and Technology, vol. 6, No. 4, Apr. 1,1993.
Co-extraction of uranium and thorium, by G.M. Ritcey & B.H. Lucas, Apr. 1972, Journal of Metals, pp. 39-44.
Brown Patrick M.
Hard Robert A
Reynolds James E.
Bos Steven
Cabot Corporation
LandOfFree
Method for solubilizing metal values does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for solubilizing metal values, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for solubilizing metal values will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3511425