Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2008-12-11
2010-06-15
Bell, Bruce F (Department: 1795)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S232000, C204S242000, C204S267000, C204S269000, C204S275100, C204S278500
Reexamination Certificate
active
07736475
ABSTRACT:
The present invention relates, generally, to a method for electrowinning copper powder, and more particularly to a method for electrowinning copper powder from a copper-containing solution using the ferrous/ferric anode reaction. In accordance with various embodiments of the present invention, a process for producing copper powder by electrowinning employs alternative anode reaction technology, namely, the ferrous/ferric anode reaction, and enables the efficient and cost-effective production of copper powder at a total cell voltage of less than about 1.5 V and at current densities of greater than 50 A/ft2. A copper powder electrowinning process in accordance with the present invention also reduces or eliminates acid mist generation that is characteristic of electrowinning operations utilizing conventional electrowinning chemistry (e.g., oxygen evolution at the anode), which is advantageous.
REFERENCES:
patent: 2792342 (1957-05-01), Tuwiner
patent: 3262870 (1966-07-01), Harlan
patent: 3616277 (1971-10-01), Adamson et al.
patent: 3632498 (1972-01-01), Beer
patent: 3703358 (1972-11-01), Carson et al.
patent: 3711385 (1973-01-01), Beer
patent: 3853724 (1974-12-01), Wojeik et al.
patent: 3876516 (1975-04-01), Pace et al.
patent: 3887396 (1975-06-01), Walsh et al.
patent: 3915834 (1975-10-01), Wright et al.
patent: 3956086 (1976-05-01), Wilkinson et al.
patent: 3972795 (1976-08-01), Goens et al.
patent: 3979275 (1976-09-01), Harvey et al.
patent: 3981353 (1976-09-01), Knight
patent: 4071431 (1978-01-01), Nicou et al.
patent: 4098668 (1978-07-01), Andersen et al.
patent: 4129494 (1978-12-01), Norman
patent: 4201653 (1980-05-01), O'Neill et al.
patent: 4219401 (1980-08-01), Johnson
patent: 4226685 (1980-10-01), Portal et al.
patent: 4272339 (1981-06-01), Knight et al.
patent: 4278521 (1981-07-01), Kreysa
patent: 4288305 (1981-09-01), Garrietsen et al.
patent: 4292160 (1981-09-01), Marcantonio
patent: 4318789 (1982-03-01), Marcantonio
patent: 4373654 (1983-02-01), Prengaman et al.
patent: 4399020 (1983-08-01), Branchick et al.
patent: 4436601 (1984-03-01), Branchick et al.
patent: 4445990 (1984-05-01), Kim et al.
patent: 4515672 (1985-05-01), Platek et al.
patent: 4556469 (1985-12-01), Kim et al.
patent: 4560453 (1985-12-01), Hoffman et al.
patent: 4565748 (1986-01-01), Dahl
patent: 4680100 (1987-07-01), Morin
patent: 4715934 (1987-12-01), Tamminen
patent: 4762603 (1988-08-01), Morin
patent: 4776941 (1988-10-01), Tezanos et al.
patent: 4789450 (1988-12-01), Paterson
patent: 4834850 (1989-05-01), deNora et al.
patent: 4863580 (1989-09-01), Epner
patent: 4960500 (1990-10-01), Epner
patent: 5006216 (1991-04-01), Dietrich et al.
patent: 5128012 (1992-07-01), Olsen
patent: 5133843 (1992-07-01), Eisman
patent: 5277777 (1994-01-01), Olper et al.
patent: 5292412 (1994-03-01), Pitton
patent: 5324409 (1994-06-01), Mayr et al.
patent: 5368702 (1994-11-01), deNora
patent: 5454917 (1995-10-01), Mattison et al.
patent: 5458746 (1995-10-01), Burgess et al.
patent: 5492608 (1996-02-01), Sandoval et al.
patent: 5516412 (1996-05-01), Andricacos et al.
patent: 5622615 (1997-04-01), Young et al.
patent: 5690806 (1997-11-01), Sunderland et al.
patent: 5705048 (1998-01-01), Oxley et al.
patent: 5725752 (1998-03-01), Sunderland et al.
patent: 5770037 (1998-06-01), Goto et al.
patent: 5783050 (1998-07-01), Coin et al.
patent: 5837122 (1998-11-01), Snyder et al.
patent: 5877388 (1999-03-01), Enda et al.
patent: 5882502 (1999-03-01), Gomez
patent: 5908540 (1999-06-01), Fanti
patent: 5972181 (1999-10-01), Coin et al.
patent: 6017428 (2000-01-01), Hill et al.
patent: 6086691 (2000-07-01), Lehockey et al.
patent: 6086733 (2000-07-01), Carey et al.
patent: 6113758 (2000-09-01), deNora et al.
patent: 6139705 (2000-10-01), Brown, Jr. et al.
patent: 6149797 (2000-11-01), Carey et al.
patent: 6214179 (2001-04-01), Cartner
patent: 6231730 (2001-05-01), Davis et al.
patent: 6319389 (2001-11-01), Fountain et al.
patent: 6340423 (2002-01-01), Duyvesteyn
patent: 6352622 (2002-03-01), Brown et al.
patent: 6398939 (2002-06-01), Huens et al.
patent: 6402930 (2002-06-01), Allen et al.
patent: 6451183 (2002-09-01), Treasure et al.
patent: 7368049 (2008-05-01), Sandoval et al.
patent: 7378010 (2008-05-01), Stevens et al.
patent: 7378011 (2008-05-01), Sandoval et al.
patent: 7393438 (2008-07-01), Marsden et al.
patent: 7452455 (2008-11-01), Sandoval et al.
patent: 7494580 (2009-02-01), Sandoval et al.
patent: 2004/0168909 (2004-09-01), Larson
patent: 2005/0023151 (2005-02-01), Sandoval et al.
patent: 2005/0269209 (2005-12-01), Sandoval et al.
patent: 2006/0021880 (2006-02-01), Sandoval et al.
patent: 2006/0226024 (2006-10-01), Sandoval et al.
patent: 2008/0047839 (2008-02-01), Sandoval et al.
patent: 2008/0105556 (2008-05-01), Sandoval et al.
patent: 2008/0217185 (2008-09-01), Stevens et al.
patent: 1162514 (1984-02-01), None
patent: 19731616 (1999-01-01), None
patent: 0206941 (1990-10-01), None
patent: 0129845 (1998-10-01), None
patent: 2810681 (2001-12-01), None
patent: 02-229778 (1990-09-01), None
patent: 1813806 (1993-05-01), None
patent: 2169443 (2001-06-01), None
patent: 589290 (1978-01-01), None
patent: 715900 (1980-02-01), None
patent: 1708939 (1982-01-01), None
patent: 1090760 (1984-05-01), None
patent: 1183566 (1984-10-01), None
patent: 1243907 (1986-07-01), None
patent: 1346697 (1987-10-01), None
patent: 1418349 (1988-08-01), None
patent: 2121411 (1988-11-01), None
patent: 1537711 (1990-01-01), None
patent: 1708939 (1992-01-01), None
patent: WO 97/14825 (1997-04-01), None
patent: WO 00/43576 (2000-07-01), None
patent: WO 2005/012597 (2005-02-01), None
Alkire, et al.; “Flow-Through Porous Electrodes”, J. Electrochem. Soc.; vol. 122, No. 12, pp. 1594-1601; Dec. 1975.
Marracino, et al.; “A First Investigation of Flow-Through Porous Electrodes Made of Metallic Felts or Foams”; Electrochimica Acta, Vo. 32, No. 9, pp. 1303-1309; 1987.
Popov, et al.; “The comparison of galvanostatic and potentiostatic copper powder deposition on platinum and aluminum electrodes”; Journal of Applied Electrochemistry, vol. 8, Jan. 3, 1978; pp. 503-514.
Jian Qi, et al.; “Analysis of flow-through porous electrode cell with homogenous chemical reactions: application to bromide oxidation in brine solutions”; Journal of Applied Electrochemistry, Vo. 23, revised Jan. 8, 1993; pp. 873-886.
Saleh, et al.; “Electrowinning of Non-Noble Metals with Simultaneous Hydrogen Evolution at Flow-Through Porous Electrodes”, J. Electrochem. Soc., vol. 142, No. 12, Dec. 1995; pp. 4122-4128.
Smirnov, et al.; “Theory, Production Technology, and Properties of Powders and Fibers”; Ural Scientific-Research and Design Institute of the Copper Industry; Translated from Poroshkovaya Metallurgiya, No. 3(291), pp. 1-4, Mar. 1987, original article submitted Mar. 25, 1986.
Usol'Tseva, et al.; “Production of Electrolytic Copper Powders on Rod Electrodes With Separating Layers”; Ural Polytechnic Institute; Translated from Poroshkovaya Metallurgiya, No. 11(299), pp. 4-8, Nov. 1987; original article submitted Dec. 29, 1986.
Allen, et al.; “Energy Savings by Means of Fuel Cell Electrodes in Electro-Chemical Industries”, Dept. of Energy, Journal Announcement: GRAI8018; NSA0500, Mar. 19, 1979, p. 72.
Barbosa, et al.; “On-line coupling of electrochemical preconcentration in tungsten coil electrothermal atomic absorption spectrometry for determination of lead in natural waters”, Spectrochimica Acta—Part B Atomic Spectroscopy, v. 54, n 8, 1999, p. 1155-1166.
Bechtold, et al.; “Optimization of multi-cathode membrane electrolyzers for the indirect electrochemical reduction of indigo”; Chemical Engineering & Technology, v. 21, n. 11, Nov. 1998; pp. 877-880.
Chin, Der-Tau; “Metal recovery from wastewater with an electrochemical method”, Chemical Engineering Education, v. 36, No. 2, Spring 2002.
Cook, et al.; “Electrodeposition of copper in flow-through cathodes”; Abstract from Electrochemical Society Fall Meeting; p
Gilbert Stanley R
Marsden John O
Robinson Timothy G
Sandoval Scot P
Stevens Antonioni C
Bell Bruce F
Freeport-McMoran Corporation
Snell & Wilmer L.L.P.
LandOfFree
System and method for producing copper powder by... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for producing copper powder by..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for producing copper powder by... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4247359