Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
Reexamination Certificate
2011-07-05
2011-07-05
Mayes, Melvin C (Department: 1732)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iiia metal or beryllium
Reexamination Certificate
active
07972580
ABSTRACT:
A liquid phase that comprises an oxalate-extracting amount of an organic salt is useful as an extractant in a liquid/liquid extraction process for purifying Bayer process streams.
REFERENCES:
patent: 4036931 (1977-07-01), Robertson et al.
patent: 4164375 (1979-08-01), Allen
patent: 4275042 (1981-06-01), Lever
patent: 4280987 (1981-07-01), Yamada et al.
patent: 4496524 (1985-01-01), Bush et al.
patent: 4559203 (1985-12-01), Bauer et al.
patent: 4578255 (1986-03-01), Roe et al.
patent: 4902425 (1990-02-01), Keeney
patent: 5284634 (1994-02-01), Strominger et al.
patent: 5385586 (1995-01-01), Farquharson et al.
patent: 5849172 (1998-12-01), Allen et al.
patent: 5879556 (1999-03-01), Hein
patent: 5948263 (1999-09-01), Chaiko et al.
patent: 6293973 (2001-09-01), Farquharson et al.
patent: 7067106 (2006-06-01), Malito
patent: WO 97/22556 (1997-06-01), None
patent: WO 2007/066143 (2007-06-01), None
patent: WO 2007/066143 (2007-06-01), None
B.J. Foster and M.L. Roberson, “Removal of HMW Compounds by Partial Wet Oxidation,” Light Metals, (1988), pp. 79-85; Phoenix AZ.
A.D. Stuart, “Removal of Organics from Bayer Spent Liquors Using Manganese Dioxide,” 117th TMS Light Metals Committee (1988), pp. 95-102; Phoenix, AZ.
N. Brown, “Kinetics of Copper-Catalysed Oxidation of Bayer Liquor Organics,” Light Metals (1989), pp. 121-130.
P.J. The and J.F. Bush, “Solubility of Sodium Oxalate in Bayer Liquor and a Method of Control,” Light Metals (1987), pp. 5-10.
J. Bangun and A. A. Adesina, “The Photodegradation Kinetics of Aqueous Sodium Oxalate Solution Using TiO2 Catalyst,” Applied Catalysis A: Gen.175 (1998), pp. 221-235.
Tran et al., “Oxidation of Organics in Simulated Bayer Liquors Using Maganese Dioxide Ore,” Light Metals, (1989), pp. 217-223.
Yamada et al., “Oxidation of Organic Substances in the Bayer Process,” Light Metals (1981), pp. 117-128.
Williams et al., “Enhanced Oxalate Removal Utilizing the Multi-Functional Purox Process,” Light Metals (1998), 81-87.
Pulpeiro, et al., “Sizing an Organic Control System for the Bayer Process,” Light Metals (1998), pp. 89-95.
Farquharson et al., “Development of an Effective Liiiiquor Oxalater Stabilizer,” Light Metals (1995), pp. 95-101.
Hollanders et al., “Calcination of Sodium Oxalate/Bauxite Mixtures,” Light Metals (1994), pp. 91-97.
S. Kumar, “Incineration of Sodium Oxalate/Fuel Oil Slurry in a Rotary Calciner,” Light Metals (1991), pp. 1229-1234.
Perrotta et al., “Hydrocalumite Formation in Bayer Liquor and Its Promotional Effect on Oxalate Precipitation,” Light metals (1995), pp. 77-87.
Perrotta et al., “Layered Duble Hydroxide Formation in Bayer Liquor and Its Promotional Effect on Oxalate Precipitation,” Light Metals (1996), pp. 17-28.
Shibue et al., “Liquor Burning Process—Its Modification and Increase in Capacity,” Light Meyals (1990), pp. 35-40.
Pareek et al., “Photocausticization of Spent Bayer Liquor: a Pilot-Scale Study,” Advances in Enivronmental Research 7 (2003) pp. 411-420.
Misato Hironaka, et al., Kinetics of Lactic Acid Extraction with Quaternary Ammonium Salt, Separation Science and Technology, 36(13), 2927-2943 (2001).
Atkins and Grocott, Light Met., (1993), 151.
Cousineu and The, Light Met., (1991), 139.
Chen Haunn-Lin Tony
Cocalia Violina
Harris Douglas J.
Taylor Matthew
Bell Charles E.
Cytec Technology Corp.
Galletta Elizabeth
Mayes Melvin C
Stalder Melissa
LandOfFree
Methods and compositions for the removal of impurities and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and compositions for the removal of impurities and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and compositions for the removal of impurities and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2700603