Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy...
Reexamination Certificate
2008-08-26
2011-10-04
Lilling, Herbert J. (Department: 1657)
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
C075S710000, C075S712000, C075S743000, C075S744000, C423S022000, C423S024000, C423S027000, C423S029000, C435S168000, C435S262500, C435S264000, C435S267000, C435S281000, C435S282000
Reexamination Certificate
active
08030055
ABSTRACT:
A method of biotreating and recovering metal values from metal-bearing refractrory sulfide ore using a nonstirred surface bioreactor is provided. According to the method, the surface of a plurality of coarse substrates is coated with a solid material to be biotreated to form a plurality of coated coarse substrates. The coarse substrates have a particle size greater than about 0.3 cm and the solid material to be biotreated has a particle size less than about 250 μm. A nonstirred surface reactor is then formed by stacking the plurality of coated coarse substrates into a heap or placing the plurality of coated coarse substrates into a tank so that the void volume of the reactor is greater than or equal to about 25%. The solid material is biotreated in the surface bioreactor until the undesired compound in the solid material is degraded to a desired concentration.
REFERENCES:
patent: 588476 (1897-08-01), Rhodes
patent: 3647261 (1972-03-01), Stenger et al.
patent: 3777004 (1973-12-01), Lankenau et al.
patent: 3796308 (1974-03-01), McIlhinney et al.
patent: 3819797 (1974-06-01), Spedden et al.
patent: 3949051 (1976-04-01), Pawlek
patent: 4017309 (1977-04-01), Johnson
patent: 4056261 (1977-11-01), Darrah
patent: 4173519 (1979-11-01), Parker et al.
patent: 4256705 (1981-03-01), Heinen et al.
patent: 4256706 (1981-03-01), Heinen et al.
patent: 4269699 (1981-05-01), McCready et al.
patent: 4279868 (1981-07-01), Von Kohorn
patent: 4301121 (1981-11-01), Von Kohorn
patent: 4318892 (1982-03-01), Von Kohorn
patent: 4324764 (1982-04-01), Hasegawa et al.
patent: 4343773 (1982-08-01), Miller et al.
patent: 4374097 (1983-02-01), Holland
patent: 4402831 (1983-09-01), Beardsmore et al.
patent: 4424194 (1984-01-01), Hughes
patent: 4526615 (1985-07-01), Johnson
patent: 4557905 (1985-12-01), Sherman et al.
patent: 4571387 (1986-02-01), Bruynesteyn et al.
patent: 4585548 (1986-04-01), Cadzow et al.
patent: 4690894 (1987-09-01), Brierley et al.
patent: 4721526 (1988-01-01), Elmore et al.
patent: 4729788 (1988-03-01), Hutchins et al.
patent: 4740243 (1988-04-01), Krebs-Yuill et al.
patent: 4752332 (1988-06-01), Wu et al.
patent: 4778519 (1988-10-01), Pesic
patent: 4789481 (1988-12-01), Brierley et al.
patent: 4888293 (1989-12-01), Hackl et al.
patent: 4987081 (1991-01-01), Hackl et al.
patent: 5006320 (1991-04-01), Reid et al.
patent: 5007620 (1991-04-01), Emmett, Jr. et al.
patent: H1074 (1992-07-01), Lazaroff et al.
patent: 5127942 (1992-07-01), Brierley et al.
patent: 5196052 (1993-03-01), Gross et al.
patent: 5232676 (1993-08-01), Wolff et al.
patent: 5236677 (1993-08-01), Torres-Cardona et al.
patent: 5244493 (1993-09-01), Brierley et al.
patent: 5246486 (1993-09-01), Brierley et al.
patent: 5332559 (1994-07-01), Brierley et al.
patent: 5356457 (1994-10-01), Alvarez et al.
patent: 5431717 (1995-07-01), Kohr
patent: 5462720 (1995-10-01), Aragones
patent: 5527382 (1996-06-01), Alvarez et al.
patent: 5573575 (1996-11-01), Kohr
patent: 5611839 (1997-03-01), Kohr
patent: 5676733 (1997-10-01), Kohr
patent: 5763259 (1998-06-01), Paños
patent: 5766930 (1998-06-01), Kohr
patent: 5800593 (1998-09-01), Kohr
patent: 5834294 (1998-11-01), Brierley et al.
patent: 5873927 (1999-02-01), Schaffner et al.
patent: 5914441 (1999-06-01), Hunter et al.
patent: 6083730 (2000-07-01), Kohr
patent: 6096113 (2000-08-01), Schaffner et al.
patent: 6107065 (2000-08-01), Kohr
patent: 6159726 (2000-12-01), Kohr
patent: 6383458 (2002-05-01), Brierley et al.
patent: 6410304 (2002-06-01), Kohr
patent: 6696283 (2004-02-01), Brierley et al.
patent: 6855527 (2005-02-01), Kohr
patent: 7416882 (2008-08-01), Kohr
patent: 749366 (1999-02-01), None
patent: 0 522 978 (1993-01-01), None
patent: 0 646 642 (1995-04-01), None
patent: 2180829 (1987-04-01), None
patent: 204 900 (1991-01-01), None
patent: WO/95/15403 (1995-06-01), None
F. Acevedo et al., “Comparative performance of stirred and pachuca tanks in the bioleaching of a copper concentrate”, Biohydrometallurgy, pp. 385-394 (Warwick United Kingdom: Science and Technology Letters) (1987).
L. Ahonen et al., “Redox Potential-Controlled Bacterial Leaching of Chalcopyrite Ores”, Biohydrometallurgical Technologies, The Minerals, Metals & Materials Society (1993) pp. 571-578.
L. Ahonen and O. H. Tuovinen, “Bacterial leaching of complex sulfide ore samples in bench-scale column reactors”, Hydrometallurgy 37, pp. 1-21 (1995).
G.F. Andrews et al., “Combined physical/microbial beneficiation of coal using the flood/drain bioreactor”, Fuel Processing Technology 40, pp. 2-33, 283-296 (1994).
Piero M. Armenante, “Bioreactors”, Biotreatment of Industrial and Hazardous Waste, M. A. Levin and M. A. Gealt, Chap. 4, pp. 65-112 (McGraw-Hill, New York) (1993).
Y. A. Attia et al., “Cleaning and desulfurization of high-sulfur coal by selective flocculation and bioleaching in a draft tube fluidized bed reactor”, Processing and Utilization of High-Sulfur Coals IV (Elsevier Science Publishers B.V., Amsterdam) (1991).
A. D. Bailey and G. S. Hansford, “Effect of removal of unattached cells on the bio-oxidation rate of pyrite in a fluidised bed reactor”, Biotech. Lett., vol. 15, No. 5, pp. 543-548 (1993).
A. D. Bailey and G. S. Hansford, “A fluidised bed reactor as a tool for the investigation of oxygen availability on the biooxidation rate of sulphide minerals at high solids concentrations”, Minerals Eng., vol. 6, No. 4, pp. 387-396 (1993).
V. Bakoyianis and A.A. Koutinas, “A Catalytic Multistage Fixed-Bed Tower Bioreactor in an INdustrial-Scale Pilot Plant for Alcohol Production”, Biotechnology and Bioengineering, vol. 49, pp. 197-203 (1996).
J. W. Bennett et al., “Limitations on pyrite oxidation rates in dumps set by air transport mechanisms”, International Symposium of Biohydrometallurgy, pp. 551-561 (Warwick, United Kingdom: Science and Technology Letters) (1987).
M. Beyer, “Microbial removal of pyrite from coal using a percolation bioreactor”, Biotech. Letters, vol. 9, No. 1, pp. 19-24 (1987).
M. L. Blasquez et al., “Coal biodesulphurization: A review”, Biorecovery, vol. 2, pp. 155-177 (1993).
M. Boon et al., “Mechanisms and Rate Limiting Steps in Bioleaching of Sphalerite, Chalcopyrite and Pyrite with Thiobacilus ferrooxidans,” Biohydrometallurgical Technologies, pp. 217-235 (Jackson Hole, Wyoming: The Minerals, Metals and Materials Society (1993).
C. L. Brierley, “Mineral Bio-Processing: Opportunities in Extractive Metallurgy and Environmental Control”, NIST, Nov. 1993, pp. 1-29.
J. A. Brierley et al., “Biooxidation-Heap Concept for Pretreatment of Refractory Gold Ore”, Biohydrometallurgical Technologies, pp. 1-30, (Jackson Hole, Wyoming: The Minerals, Metals and Materials Society (1993).
J. A. Brierley, “Bacterial Processes for Transformation of Metals”, Environmental Speciation and Monitoring Needs for Trace Metal-Containing Substances from Energy-Related Processes, pp. 264-273 (Proceedings of the DOE/NBS Workshop held at National Bureau of Standards, Gaithersburg, Maryland, May 18-20, 1981).
R. E. Browner et al., “Studies on the Heap Leaching Characteristics of Western Australian Gold Ores”, World Gold (1991).
Al Bruynesteyn, “Biological Treatment of Refractory Gold Ores—Advantages and Disadvantages”, BioMine '93, 3-1 to 3-7 (Adelaide, South Australia, Australian Mineral Foundation) (1993).
Julia R. Budden et al., “Pilot Plant Test Work and Engineering Design for the BacTech Bacterial Oxidation Plant at the Youanmi Mine”, BioMine '94, 4.1 to 4.8 (Perth, South Australia, Australian Mineral Foundation) (Sep. 19-20, 1994).
Julia R. Budden, “Bacterial Oxidation Fact and Fallacy”, BioMine '93, 19-1 to 19-3 (Adelaide, South Australia, Australian Mineral Foundation) (1993).
A. Burbank et al., “Biooxidation of Refractory Gold Ores in Heaps”, Advances in Gold and Silver Processing at GOLDTech 4 (Society o
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Lilling Herbert J.
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