Method for the generation and use of ferric ions

Details Method for the generation and use of ferric ions Method for the generation and use of ferric ions

1996-05-21

1998-10-27

Naff, David M.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing element or inorganic compound except carbon dioxide

435170, 4352521, 4352536, 4352891, 435813, C12P 104, C12P 300, C12N 120

Patent

active

058277013

ABSTRACT:
A process for generating a ferric ion solution. The process includes the steps of establishing in a vessel a population of acidophilic, chemoautotrophic bacteria which oxidize ferrous ions into ferric ions; supplying the bacteria with a feed solution of ferrous ions; maintaining the pH of the contents of the vessel below 3.0; and withdrawing the generated ferric ion solution from the vessel. The generated ferric ion solution can be used to oxidize metal or ore and to solubilize metal from ore, alloys or scrap. The ferrous ions produced during the oxidation or solubilization are recirculated into the feed solution to continue the process of generating ferric ions.

REFERENCES:
patent: 4206288 (1980-06-01), Detz et al.
patent: 4376826 (1983-03-01), Mynatt
patent: 4740243 (1988-04-01), Krebs-Yuill et al.
patent: 4869905 (1989-09-01), Sobek et al.
patent: 4888293 (1989-12-01), Hackl et al.
patent: 4931262 (1990-06-01), Sonta et al.
patent: 4987081 (1991-01-01), Hackl et al.
patent: 5006320 (1991-04-01), Reid et al.
patent: 5127942 (1992-07-01), Brierley et al.
patent: 5244493 (1993-09-01), Brierley et al.
patent: 5246486 (1993-09-01), Brierley et al.
patent: 5316751 (1994-05-01), Kingsley et al.
patent: 5332559 (1994-07-01), Brierley et al.
patent: 5338338 (1994-08-01), Kohr
patent: 5364453 (1994-11-01), Kohr
patent: 5443621 (1995-08-01), Kohr
patent: 5462720 (1995-10-01), Aragones
Vancas, Mark F. and Cornejo, Ricardo, "MINBAC.TM. Technology-Bio-Oxidation Process for Copper", Bateman Engineering, Inc., Copper Hydromet Roundtable '95.
Blake, Robert C. II, et al.; Enhanced Yields of Iron-Oxidizing Bacteria by In Situ Electrochemical Reduction of Soluble Iron in the Growth Medium; Applied and Environmental Microbiology, Aug. 1994, pp. 2704-2710.
Barron, Jean Lacombe, et al.; Growth and Maintenance of Thiobacillus ferrooxidans Cells; Applied and Environmental Microbiology, Sep. 1990, pp. 2801-2806.
Sikyta, Methods In Industrial Microbiology, Ellis Horwood Limited, Sussex, England, pp. 180, 181, and 193-197, 1983.
Chemical Abstracts 1982 96: 92408x.
Chemical Abstracts 1982 97: 35811v.
Chemical Abstracts 1982 97: 212339v.
Chemical Abstracts 1983 98: 214118s.
Chemical Abstracts 1984 100: 89293b.
Chemical Abstracts 1986 105:9672q.
Chemical Abstracts 1987 106: 3822n.
Chemical Abstracts 1988 108: 190355p.
Chemical Abstracts 1989 110: 36592y.
Chemical Abstracts 1989 110: 36593z.
Chemical Abstracts 1989 110: 228388h.
Chemical Abstracts 1989 111: 191245b.
Chemical Abstracts 1990 113: 148646n.
Chemical Abstracts 1991 114: 203316c.
Chemical Abstracts 1991 115: 6975m.
Chemical Abstracts 1992 116: 212937z.
Chemical Abstracts 1992 117: 237538d.
Chemical Abstracts 1993 118: 25353k.
Chemical Abstracts 1993 118: 25358r.
Chemical Abstracts 1993 118: 74519c.
Chemical Abstracts 1993 118: 76783h.
Chemical Abstracts 1993 118: 172965q.
Chemical Abstracts 1993 119: 158351a.
Chemical Abstracts 1993 119: 221318n.
Chemical Abstracts 1993 119: 224419g.
Chemical Abstracts 1994 120: 276182q.
Chemical Abstracts 1994 121: 103672s.
Chemical Abstracts 1994 121: 129606y.
Chemical Abstracts 1994 121: 260246y.
Chemical Abstracts 1995 122: 54128d.
Chemical Abstracts 1995 122: 85952x.
Chemical Abstracts 1995 122: 319006w.
Chemical Abstracts 1995 123: 7904q.

Affiliated with

Also associated with

Rating

Method for the generation and use of ferric ions 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 the generation and use of ferric ions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the generation and use of ferric ions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1613135