WO2002002832A1 - Heap leach bio oxidization - Google Patents
Heap leach bio oxidization Download PDFInfo
- Publication number
- WO2002002832A1 WO2002002832A1 PCT/IB2000/000928 IB0000928W WO0202832A1 WO 2002002832 A1 WO2002002832 A1 WO 2002002832A1 IB 0000928 W IB0000928 W IB 0000928W WO 0202832 A1 WO0202832 A1 WO 0202832A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bio
- ore
- heap
- heap leach
- oxdized
- Prior art date
Links
- 238000007254 oxidation reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000002386 leaching Methods 0.000 claims abstract 2
- 239000012528 membrane Substances 0.000 claims description 3
- 230000002262 irrigation Effects 0.000 claims description 2
- 238000003973 irrigation Methods 0.000 claims description 2
- 238000004900 laundering Methods 0.000 claims 2
- 229910052785 arsenic Inorganic materials 0.000 claims 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 230000003134 recirculating effect Effects 0.000 claims 1
- 239000002244 precipitate Substances 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/04—Obtaining arsenic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- Treatment of refractory base and precious metal ore requires expensive crushing, milling, and flotation followed by pyro etalurgical reduction.
- the launder, rehandling equipment, precipitate colunm(s), pulp collection and pumping equipment and second leach pad for receiving the laundered, unoxdizied ore are not showen.
- the launder could consist of a Variable Capacity Improved and Leases Plane Table having a very small grooves, for example minus 40 mesh. 0
- the table could tbnn discharge extracted concentrate directly into the precipitate columns.
- //I is the clear plastic, 10 mil plus, green house membrane providing for entrance of sunlight, retention of humidity, elevation of temperature and control of liquid process volumes in the necessary out door env or- n ent .
- #2 is one branch of the perforated, small diameter, high preasure plastic irrigation pipe line from the in- ter itently timed pump, #7.
- the support systems for #1&2 may be intergral from the ore stockpile, #3, heaped surface.
- #4 is the self draining asphaultic concrete leach pad which is built with an apposite transverse and longitudinal grade so that all leach solution eventually drains to the pump's sump, //6.
- Asphaultic concrete is used for the leach pad as this material is reletively unaffected by an acidic solution and can withstand movement of heavy equipment thereby enabling a final clean-up of oxidized ore with a rubber tired front end loader, #5 is an air vent at the skirt of the clear plastic green house membrane for entrance of oxygen.
Abstract
A method for biologically heap leaching ore within a greenhouse.
Description
PATENT APPLICATION
HEAP LEACH BIO OXIDIZATION
Treatment of refractory base and precious metal ore requires expensive crushing, milling, and flotation followed by pyro etalurgical reduction.
BRIEF DESCRIPTION OF THE DRAWING
The drawing, no scale, shows a transverse cross section . of a loaded biologocal oxdization heap leach pad.
The launder, rehandling equipment, precipitate colunm(s), pulp collection and pumping equipment and second leach pad for receiving the laundered, unoxdizied ore are not showen. Alternatively, the launder could consist of a Variable Capacity Improved and Leases Plane Table having a very small grooves, for example minus 40 mesh. 0 The table could tbnn discharge extracted concentrate directly into the precipitate columns.
Applicant's patent application 08/864,698, Variable Capacity Improved Rand Leases Plane Table is hereby incorporated into this application by reference.
DETAILED DESCRIPTION OF THE DRAWING
//I is the clear plastic, 10 mil plus, green house membrane providing for entrance of sunlight, retention of humidity, elevation of temperature and control of liquid process volumes in the necessary out door env or- n ent .
#2 is one branch of the perforated, small diameter, high preasure plastic irrigation pipe line from the in- ter itently timed pump, #7. The support systems for #1&2 may be intergral from the ore stockpile, #3, heaped surface.
#4 is the self draining asphaultic concrete leach pad which is built with an apposite transverse and longitudinal grade so that all leach solution eventually drains to the pump's sump, //6. Asphaultic concrete is used for the leach pad as this material is reletively unaffected by an acidic solution and can withstand movement of heavy equipment thereby enabling a final clean-up of oxidized ore with a rubber tired front end loader,, #5 is an air vent at the skirt of the clear plastic green house membrane for entrance of oxygen.
Claims
I Claim:
I.) A method for biologically heap leaching ore within a green house. II.) The green house of calim 1 which comprises a clear plastic membrane over the top of said heap. III.) The method of claim 1 which comprises recirculating irrigation.
IV. ) The method of calim 1 which further comprises an asphaultic concrete heap leach pad.
V. ) Laundering bio oxdized heap leach ore.
VI.) Column preciptation of bio oxdized heap leach pulp. VII.) A method for production of trivalent arsenic which comprises bio oxdizing refractory ore within a green house . VIII.) The method of claim 7 which further comprises column preciptation. IX.) Laundering oxdized ore over a minus 40 mesh variable capacity improved rand leases plane table for extraction of a pulp heavy mineral concentr e.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU54217/00A AU5421700A (en) | 2000-07-01 | 2000-07-01 | Heap leach bio oxidisation |
| PCT/IB2000/000928 WO2002002832A1 (en) | 2000-07-01 | 2000-07-01 | Heap leach bio oxidization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2000/000928 WO2002002832A1 (en) | 2000-07-01 | 2000-07-01 | Heap leach bio oxidization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002002832A1 true WO2002002832A1 (en) | 2002-01-10 |
Family
ID=11003946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2000/000928 WO2002002832A1 (en) | 2000-07-01 | 2000-07-01 | Heap leach bio oxidization |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU5421700A (en) |
| WO (1) | WO2002002832A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992179A (en) * | 1984-10-17 | 1991-02-12 | Vistatech Partnership, Ltd. | Metal recovery |
| US5785735A (en) * | 1993-06-04 | 1998-07-28 | Raskin; Ilya | Phytoremediation of metals |
| US5917117A (en) * | 1996-03-21 | 1999-06-29 | Phytotech, Inc. | Inducing hyperaccumulation of metals in plant shoots |
-
2000
- 2000-07-01 AU AU54217/00A patent/AU5421700A/en not_active Withdrawn
- 2000-07-01 WO PCT/IB2000/000928 patent/WO2002002832A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992179A (en) * | 1984-10-17 | 1991-02-12 | Vistatech Partnership, Ltd. | Metal recovery |
| US5785735A (en) * | 1993-06-04 | 1998-07-28 | Raskin; Ilya | Phytoremediation of metals |
| US5928406A (en) * | 1993-06-04 | 1999-07-27 | Salt; David E. | Conversion of metal oxidation states by phytoreduction |
| US6159270A (en) * | 1993-06-04 | 2000-12-12 | Edenspace Systems Corporation | Phytoremediation of metals |
| US5917117A (en) * | 1996-03-21 | 1999-06-29 | Phytotech, Inc. | Inducing hyperaccumulation of metals in plant shoots |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5421700A (en) | 2002-01-14 |
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