[go: up one dir, main page]

WO2008010175B1 - Air distributor for heap leaching process - Google Patents

Air distributor for heap leaching process

Info

Publication number
WO2008010175B1
WO2008010175B1 PCT/IB2007/052814 IB2007052814W WO2008010175B1 WO 2008010175 B1 WO2008010175 B1 WO 2008010175B1 IB 2007052814 W IB2007052814 W IB 2007052814W WO 2008010175 B1 WO2008010175 B1 WO 2008010175B1
Authority
WO
WIPO (PCT)
Prior art keywords
air distributor
pipe
indentation
heap
apertures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2007/052814
Other languages
French (fr)
Other versions
WO2008010175A3 (en
WO2008010175A2 (en
Inventor
Alan Eric Norton
Jeffrey Todd Harvey
Michael John Gunn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geobiotics Inc
Original Assignee
Geobiotics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Geobiotics Inc filed Critical Geobiotics Inc
Publication of WO2008010175A2 publication Critical patent/WO2008010175A2/en
Publication of WO2008010175A3 publication Critical patent/WO2008010175A3/en
Publication of WO2008010175B1 publication Critical patent/WO2008010175B1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23121—Diffusers having injection means, e.g. nozzles with circumferential outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23123—Diffusers consisting of rigid porous or perforated material
    • B01F23/231231—Diffusers consisting of rigid porous or perforated material the outlets being in the form of perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231265—Diffusers characterised by the shape of the diffuser element being tubes, tubular elements, cylindrical elements or set of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/23127—Screens, nets, grades or grids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23128—Diffusers having specific properties or elements attached thereto
    • B01F23/231283—Diffusers having specific properties or elements attached thereto having elements to protect the parts of the diffusers, e.g. from clogging when not in use
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
    • 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
    • C22B3/02—Apparatus therefor
    • 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
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biotechnology (AREA)
  • Wood Science & Technology (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Biochemistry (AREA)
  • Sustainable Development (AREA)
  • Biomedical Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Catching Or Destruction (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The invention relates to an air distributor (1) for a bio-assisted heap leaching system which comprises a pipe having a series of apertures through the wall of the pipe, with the series of apertures (3) configured operatively to face downwards, and to be located in an indentation (2) in the outer wall of the pipe. The invention also extends to a heap leaching system, method of forming a bio-assisted heap leaching system, and a method of bio- assisted leaching of a heap which utilizes such an air distributor.

Claims

AMENDED CLAIMS [Received by the International Bureau on 18 March 2008 (18.03.08)]CLAIMS
1. An air distributor for a bio-aesieted heap leaching process comprising a pipe having a series of apertures through the wall of the pipe, with the series of apertures configured operatively located in the dry shadow of the pipe in a heap.
2. An air distributor as claimed in claim 1 in which the pipe includes at least one continuous indentation and at least one of the apertures is located within the continuous indentation ,
3. An air distributor as claimed in claim 2 in which the continuous indentation extends longitudinally along the outer wall of the pipe.
4 An air distributor as claimed in claim 2 in which the continuous indentation comprises an endless circumferential indentation.
5 An air distributor as claimed in claim 4 in which the pipe includes a plurality of endless circumferential indentations.
6. An air distributor as claimed in claim 4 or 5 in which each endless circumferential indentation includes two apertures spaced apart by between about 0° and 45° degrees from the vertical along the circumference of the pipe.
7. An air distributor as claimed in any one of claims 1 to 6 in which the series of apertures extends longitudinally along the pipe in a line which Is orientated between about 0β and 45' degrees from the vertical along the circumference of the pipe
8 An air distributor as claimed in claim 2 in which the continuous indentation comprises a helical indentation, and for a plurality of apertures to be located in the circumferential indentation
9 An air distributor as claimed in claims 1 to 3 which includes a perforated cover over each aperture.
10. An air distributor as claimed in claims 1 to 3 which includes a single perforated cover over the continuous indentation.
11. An air distributor as claimed in claims 4 to 6 which includes a perforated cover over each aperture.
12. An air distributor as claimed in claims 4 to 6 which includes a single perforated cover over each endless circumferential continuous indentation.
13. An air distributor as claimed in claims 4 to 6 which includes a single perforated cover αvβr all the endless circumferential continuous indentations.
14. An air distributor as claimed in claim 7 which includes a perforated cover over each aperture.
15. An air distributor as claimed in claim 7 which includes a single perforated cover over each the helical indentation.
16. A bio-assisted heap leaching system which includes an air distributor as claimed in any one of claims 1 to 15.
17. A method of forming a bio-assisted heap leaching system which includes installing an air distributor as claimed In any one of claims 1 to 15 in the heap.
18 A method of bio-assisted leaching of a heap which includes the step of introducing air into the heap through an air distributor as claimed in any one of claims 1 to 15.
PCT/IB2007/052814 2006-07-14 2007-07-13 Air distributor for heap leaching process Ceased WO2008010175A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA200605807 2006-07-14
ZA2006/05807 2006-07-14
ZA200701408 2007-01-30
ZA2007/01408 2007-01-30

Publications (3)

Publication Number Publication Date
WO2008010175A2 WO2008010175A2 (en) 2008-01-24
WO2008010175A3 WO2008010175A3 (en) 2008-03-20
WO2008010175B1 true WO2008010175B1 (en) 2008-05-29

Family

ID=38657630

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2007/052814 Ceased WO2008010175A2 (en) 2006-07-14 2007-07-13 Air distributor for heap leaching process
PCT/IB2007/052815 Ceased WO2008010176A2 (en) 2006-04-14 2007-07-13 Gas distributor for a stacked particle bioreactor

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/052815 Ceased WO2008010176A2 (en) 2006-04-14 2007-07-13 Gas distributor for a stacked particle bioreactor

Country Status (12)

Country Link
EP (1) EP2049647A2 (en)
AR (2) AR062070A1 (en)
AU (1) AU2007274621A1 (en)
BR (1) BRPI0714506A2 (en)
CA (1) CA2657501A1 (en)
CL (1) CL2007002072A1 (en)
IL (1) IL196492A0 (en)
MX (1) MX2009000501A (en)
PE (1) PE20080383A1 (en)
SG (1) SG175623A1 (en)
UY (1) UY30487A1 (en)
WO (2) WO2008010175A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589611A (en) * 1969-03-05 1971-06-29 John B Jones Jr Distributors for injecting fluids into vessels
FR2551457B2 (en) * 1982-07-22 1987-01-30 Union Ind Entreprise PROCESS AND INSTALLATION FOR REALIZING DEGRADATION IN ANAEROBIC MEDIA OF ORGANIC PRODUCTS, BY-PRODUCTS AND WASTE
US5766930A (en) * 1995-06-02 1998-06-16 Geobiotics, Inc. Method of biotreatment for solid materials in a nonstirred surface bioreactor
AR037373A1 (en) * 2001-11-13 2004-11-03 Bhp Billiton Innovation Pty AIR DISTRIBUTOR FOR A BIOLIXIVIATION SYSTEM

Also Published As

Publication number Publication date
AU2007274621A1 (en) 2008-01-24
WO2008010175A3 (en) 2008-03-20
EP2049647A2 (en) 2009-04-22
MX2009000501A (en) 2009-04-27
PE20080383A1 (en) 2008-05-23
CL2007002072A1 (en) 2008-06-27
AR062066A1 (en) 2008-10-15
WO2008010175A2 (en) 2008-01-24
WO2008010176A2 (en) 2008-01-24
IL196492A0 (en) 2009-09-22
AR062070A1 (en) 2008-10-15
UY30487A1 (en) 2008-02-29
CA2657501A1 (en) 2008-01-24
BRPI0714506A2 (en) 2013-04-24
SG175623A1 (en) 2011-11-28
WO2008010176A3 (en) 2008-03-20

Similar Documents

Publication Publication Date Title
AU2019414451B2 (en) Analyte sensor break-in mitigation
WO2007087408A3 (en) Method and arrangement for feeding chemicals into a process stream
WO2007044763A3 (en) System and method for detecting fraudulent transactions
DE50011915D1 (en) POLYURETHANE DISPERSIONS
WO2007076163A3 (en) Biodiesel production processes and biodiesel produced therefrom
WO2006135749A3 (en) Multiple partitioning devices for heart treatment
EP1950538A3 (en) System and method for making paints from prepaints
IL185398A0 (en) Self extracting submunition
DE602005014936D1 (en) Phosphoramidatderivate
EP1847689A3 (en) Apparatus and method of diaphragm assembly
WO2001034835A3 (en) Method for the production of biopolymers with modified properties
WO2007120208A3 (en) Nanogrid rolling circle dna sequencing
WO2009064263A3 (en) Apparatus and method for the protection of a vehicle from rocket-propelled grenades (rpgs)
BR0310130B1 (en) Method for improving the germination rate of plant seeds that are treated with a phytotoxic agent as well as producing an agronomic crop.
NZ600293A (en) Method of manufacturing a mechanically lined pipe more than 500 m long
EP3029156A3 (en) Method for the diagnosis and/or prognosis of acute renal damage
EP1909198A3 (en) Semantical partitioning of data
WO2008010175B1 (en) Air distributor for heap leaching process
FR2800751B1 (en) PROCESS FOR THE PRODUCTION OF 1.3 PROPANEDIOL BY FERMENTATION
WO2005054159A3 (en) Process for the preparation of xylene by the catalytic dehydrocyclization of diisobutylene
WO2008139430A3 (en) Drainage system for aerated heap leaching comprising perforated flat tubes
WO2004089863A8 (en) Process for the production of 2-hydroxy-4-methylthiobutyric acid ammonium salt
WO2007057512A3 (en) Method and apparatus for treating lime mud
WO2005004784A3 (en) Installation comprising a machine for the production of tablets which are intended, in particular, for therapeutic use
WO2001046087A3 (en) Fertilizer, ion exchanger and method for the production thereof

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07805155

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

122 Ep: pct application non-entry in european phase

Ref document number: 07805155

Country of ref document: EP

Kind code of ref document: A2