US20180148852A1 - Electrolytic vessel with reinforcing components - Google Patents

Electrolytic vessel with reinforcing components Download PDF

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Publication number
US20180148852A1
US20180148852A1 US15/573,070 US201615573070A US2018148852A1 US 20180148852 A1 US20180148852 A1 US 20180148852A1 US 201615573070 A US201615573070 A US 201615573070A US 2018148852 A1 US2018148852 A1 US 2018148852A1
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United States
Prior art keywords
rebars
core
vessel
wall
fiberglass
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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.)
Abandoned
Application number
US15/573,070
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English (en)
Inventor
Robert Dufresne
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Pultrusion Technique Inc
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Pultrusion Technique Inc
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Application filed by Pultrusion Technique Inc filed Critical Pultrusion Technique Inc
Priority to US15/573,070 priority Critical patent/US20180148852A1/en
Assigned to PULTRUSION TECHNIQUE INC. reassignment PULTRUSION TECHNIQUE INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DUFRESNE, ROBERT
Publication of US20180148852A1 publication Critical patent/US20180148852A1/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • 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

  • the present product generally relates to hydrometallurgical equipment and more particularly to reinforced electrolytic vessels.
  • Hydrometallurgical processes make use of electrolytic vessels or tanks for refining non-ferrous metals (including copper, nickel, zinc, nickel, cobalt, manganese and other precious metals) with multiple rows of electrodes plunged in an acidic electrolytic bath contained in the electrolytic vessels. Materials of the electrolytic cells must therefore stand up to highly corrosive conditions and heavy weight of the electrodes and bath.
  • non-ferrous metals including copper, nickel, zinc, nickel, cobalt, manganese and other precious metals
  • Known materials used for designing electrolytic vessels include steel reinforced concrete and composite material such as polymer concrete, or glass fiber and carbon fiber-reinforced corrosion-resistant polymers.
  • concrete and polymer concrete vessel walls can crack due to the mechanical constraints imposed by the bath and electrodes and internal stresses while the concrete ages.
  • unbonded or bonded surface liners can be used to cover the inner surface of the vessel.
  • liners are prone to damage from impacts of electrodes and may also crack while aging, be altered by corrosion or suffer bad adhesion due to the curing during the casting process of the vessel, thereby enabling the corrosive bath to contact the unprotected walls of the vessel.
  • a reinforced electrolytic vessel for refining non-ferrous metals.
  • the vessel includes: a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base; and at least two elongated fiberglass rebars embedded in each wall of the core.
  • a reinforced electrolytic vessel for refining non-ferrous metals which includes: a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base; and a multiple-layer fiberglass-based envelope surrounding the core, the envelope comprising a fiberglass-based layer.
  • a reinforced electrolytic vessel for refining non-ferrous metals which includes: a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base; at least two flat elongated pultruded fiberglass rebars embedded in each wall of the core; and a multiple-layer fiberglass-based envelope surrounding the core, the envelope comprising a fiberglass-based layer.
  • a reinforced electrolytic vessel for refining non-ferrous metals which includes: a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base; a multiple-layer fiberglass-based envelope surrounding the core, the envelope comprising a fiberglass-based layer; and at least two elongated fiberglass rebars embedded in the multiple-layer fiberglass-based envelope.
  • a reinforced electrolytic vessel for refining non-ferrous metals which includes: a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base; a multiple-layer fiberglass-based envelope surrounding the core, the envelope comprising a continuous fiberglass-based layer; and a plurality of elongated pultruded fiberglass rebars embedded in each wall or the core, in the multiple-layer fiberglass-based envelope or in the combination thereof.
  • a reinforced electrolytic vessel for refining metals such as non-ferrous metals, which includes: a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base, the core comprising a matrix comprising concrete and/or polymer material; and a plurality of elongated pultruded rebars embedded in the matrix and distributed there within to reduce cracking thereof, wherein the rebars are optionally provided as at least two rebars in each wall, as flat elongated rebars, as fiberglass rebars, as rebars arranged in spaced apart pairs, and/or as rebars having one or more features as described herein and/or as illustrated in the figures.
  • a method of reinforcing electrolytic vessel for refining metals which includes: providing a plurality of elongated pultruded rebars embedded in a matrix to form a core shaped to hold an electrolytic liquid, the core comprising a rectangular core base and four walls extending upwardly from peripheral edges of the core base; and the plurality of elongated rebars being distributed within the matrix to reduce cracking thereof, wherein the rebars are optionally provided as at least two rebars in each wall, as flat elongated rebars, as fiberglass rebars, as rebars arranged in spaced apart pairs, and/or as rebars having one or more features as described herein and/or as illustrated in the figures.
  • the vessel may include at least one flat elongated pultruded fiberglass rebar embedded in at least one wall of the core, at least a part of the multiple-layer fiberglass based envelope or a combination thereof.
  • FIG. 1 is a perspective view of an electrolytic vessel used for refining non-ferrous metals.
  • FIG. 2 is a semi-transparent cross-sectional view along line II of FIG. 1 according to an embodiment of the reinforced vessel.
  • FIG. 3 is a semi-transparent cross-sectional view along line III of FIG. 2 .
  • FIG. 4 is a cross-sectional view along line IV of FIG. 2 .
  • FIG. 5 is a view of portion V of FIG. 4 .
  • FIG. 6 is a semi-transparent cross-sectional view along line VI of FIG. 1 according to another embodiment of the reinforced vessel.
  • FIG. 7 is a semi-transparent cross-sectional view along line VII of FIG. 6 .
  • FIG. 8 is a cross-sectional view along line VIII of FIG. 6 .
  • FIG. 9 is a view of portion IX of FIG. 8 .
  • FIG. 10 is a semi-transparent cross-sectional view along line X of FIG. 1 according to another embodiment of the reinforced vessel.
  • FIG. 11 is a semi-transparent cross-sectional view along line XI of FIG. 10 .
  • FIG. 12 is an exploded perspective view of the electrolytic vessel showing the inside hull made of fiberglass, with the semi-transparent inner core made of polymer concrete reinforced with embedded rebars, completed with an outer hull of fiberglass (i.e. envelope).
  • Embodiments illustrated in FIGS. 1 to 9 relate to a reinforced electrolytic vessel including a plurality of flat pultruded fiberglass rebars embedded in each wall of the vessel and a surrounding multiple-layer fiberglass-based envelope.
  • Flat rebars can offer improved tensile strength when the vessel walls are subjected to internal and external stresses.
  • the number and orientation of the embedded flat pultruded fiberglass rebars may vary and can be adapted according to certain configurations and materials of the vessel.
  • a vessel 2 includes a core 4 having a rectangular base 6 and four walls 8 extending from peripheral edges of the core base 6 .
  • the core defines a cavity in which an electrolytic liquid or bath can be received.
  • the core may be made of polymer concrete or prestressed polymer concrete.
  • the vessel 2 further comprises a plurality of flat pultruded rebars 10 that may be embedded within each of the four core walls 8 .
  • the pultruded rebars of the reinforced vessel are flat in the sense that their cross-section in a transverse direction is inferior to their cross-section in a longitudinal direction. It should be understood that the size and shape of each of the at least two pultruded rebars of a same wall may be different from one rebar to the other rebar.
  • Flat pultruded rebars can offer an increased contact surface with the core (e.g. in comparison to circular rebars) which is available for bonding chemically or mechanically with the material of the core so as to provide enhanced tensile strength to the vessel wall.
  • the plurality of flat pultruded rebars of a same vessel wall may include at least two flat rebars.
  • the plurality of flat pultruded rebars of a same wall 8 may include at least four horizontal flat rebars 10 , distributed along a height of the wall.
  • the plurality of pultruded rebars of a same wall may be optionally organized in pairs 12 of two opposed rebars spaced-apart from each other, which may be referred to as “doubled rebars” 12 .
  • the plurality of flat pultruded rebars of a same vessel wall may include a flat horizontal rebar near the top of the wall and three (3) vertical rebars near the top of the wall.
  • One of the vertical rebars is placed in the middle of the width of the wall and the two others are spaced apart near the outer and inner side of the wall as shown in FIG. 9 .
  • the space between the rebars of a pair 12 may depend for example on a thickness of the core wall 8 . It should be understood that the doubled flat pultruded rebars may be used in order to increase the moment of inertia in a transversal direction of the vessel.
  • the flat rebars can include fiberglass and can be pultruded according to known pultrusion techniques.
  • the mechanical resistance of the vessel walls to internal and external stresses is further improved by the use of a multiple-layer fiberglass-based envelope 14 surrounding the vessel core 4 , as seen for example in FIGS. 4 and 5 .
  • the envelope includes a continuous fiberglass-based layer.
  • the multiple-layer fiberglass-based envelope includes multiple layers of at least one of fiberglass mat, knitted fiberglass, stitched, stitched-mat, knitted-mat and fiberglass woven roving.
  • the multiple-layer fiberglass-based envelope may include successive layers of fiberglass mat, knitted fiberglass, stitched, stitched-mat, knitted-mat and fiberglass woven roving.
  • a maximum thickness of the multiple-layer fiberglass-based envelope may be between about 8 mm and about 12 mm, optionally 10 mm. It should be understood that the choice of fiberglass-based material for the envelope may depend for example on the desired orientation of the fibers.
  • an inner surface of the core 40 corresponds to the combination of an inner surface of the core walls 42 and a top surface of the core base 44 , which could be in contact with the electrodes and electrolytic bath without the presence of the envelope 14 .
  • An outer surface of the core 46 corresponds to the combination of a remaining external surface of the core walls 48 and a bottom surface of the core base 50 .
  • an outer envelope (hull) can be thinner in terms of chemical protection or structural protection than the inner envelope (hull) which is in contact with acid.
  • the continuous fiberglass-based layer refers to a layer including fiberglass layering continuously at least the inner surface of the core.
  • a continuous fiberglass woven roving layer included in the multiple-layer fiberglass-based envelope may result from the superposition of two one-piece fiberglass woven roving extending from one vessel wall to the opposed vessel wall.
  • positioning of the flat rebars may be chosen according to the thickness of the wall 8 .
  • some flat rebars 10 or 12 may be positioned proximate to the inner surface of the core 40 .
  • other flat rebars 12 may be positioned proximate to the outer surface of the core 46 .
  • the flat pultruded rebars may be optionally centered with respect to the cross-section of the wall in a transversal direction and aligned with respect to one another so as to be substantially co-planar. It should be understood that other flat pultruded rebars may be additionally placed proximal to the surface of the wall.
  • Each rebar of the plurality of flat pultruded rebars are elongated so as to be a one-piece rebar extending from one wall to the opposed contiguous wall.
  • a pair of crossed flat pultruded rebars may be embedded within each vessel wall, proximate to the outer surface of the core of each of the four vessel walls.
  • the crossed rebars may be embedded either within the core or within the multiple-layer fiberglass envelope.
  • a pair of crossed rebars 16 may be embedded within the core 4 each of the four walls 8 , proximate to the outer surface 46 of the core. It should be understood that, depending on the position of the crossed rebars within the core, crossed rebars 16 may be in contact with other horizontal rebars 10 or 12 .
  • a pair of crossed rebars 16 and 160 may be embedded within core 4 each of the four walls 8 , proximate to the outer surface 46 of the core.
  • one rebar 16 may be embedded within the core 4 of the vessel and the other rebar 160 may be embedded within the multiple-layer envelope 14 , both proximate to the outer surface 46 of the core 4 .
  • additional horizontal, vertical or crossed pultruded rebars may be embedded within the core or within the multiple-layer fiberglass-based envelope so as to further strengthen the structure of the vessel.
  • vertical elongated fiberglass pultruded rebars 100 may be embedded in each core wall 8 .
  • vertical rebars may also be embedded in the multiple-layer fiberglass based envelope 14 .
  • a first top envelope ( 200 ) made of fiberglass mat is ready to nest into the polymer-concrete core ( 220 ) reinforced with crossed rebars ( 222 ) and horizontal rebars ( 224 ) embedded within its walls.
  • a bottom envelope layer ( 240 ) made of fiberglass mat is provided underneath and ready to receive the core.
  • the process of constructing the electrolytic vessel core is shown upside-down in FIG. 12 .
  • the vessel is constructed with two hulls (i.e. envelopes) in composite fiberglass, one interior envelope and another exterior envelope.
  • the inner envelope ( 200 ) is made of a multiplicity of fiberglass layers. While coating the inner hull, or after coating, the outside hull ( 240 ) is constructed of Fiberglas layers on the outer walls of the inner envelope, leaving a space therebetween to form a cavity.
  • the cavity created between the inner hull ( 200 ) and the outer hull ( 240 ) is filled with Fiberglas rebars ( 222 , 224 ) that are held with tools well known in the art (such as studs or pins), The cavity is then filled layer by layer with polymer concrete to create the core ( 220 ).
  • the first two innermost layers of the internal envelope are made of “gel coat” (such as pure resin with little chemical additives) to obtain optimal corrosion resistance (i.e. against sulfuric acid and/or Cl 2 and/or Cl ⁇ , chlorine). These two layers are then baked or cured by heat or catalyst.
  • “gel coat” such as pure resin with little chemical additives
  • the reinforced vessel is not limited to include at least two rebars in each wall of the core as illustrated in the Figures but may include at least one rebar embedded in at least one wall of the core, optionally in at least two walls of the core, optionally in at least three walls of the core and further optionally in each wall of the core. It should be understood that the number, shape and orientation of the rebars may vary and can be chosen to fulfill specific strength requirements for the vessel.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Laminated Bodies (AREA)
  • Conductive Materials (AREA)
  • Prevention Of Electric Corrosion (AREA)
US15/573,070 2015-05-13 2016-05-12 Electrolytic vessel with reinforcing components Abandoned US20180148852A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/573,070 US20180148852A1 (en) 2015-05-13 2016-05-12 Electrolytic vessel with reinforcing components

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562160707P 2015-05-13 2015-05-13
PCT/CA2016/050542 WO2016179703A1 (fr) 2015-05-13 2016-05-12 Cuve d'électrolyse comprenant des éléments de renforcement
US15/573,070 US20180148852A1 (en) 2015-05-13 2016-05-12 Electrolytic vessel with reinforcing components

Publications (1)

Publication Number Publication Date
US20180148852A1 true US20180148852A1 (en) 2018-05-31

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US15/573,070 Abandoned US20180148852A1 (en) 2015-05-13 2016-05-12 Electrolytic vessel with reinforcing components

Country Status (11)

Country Link
US (1) US20180148852A1 (fr)
EP (1) EP3294930B1 (fr)
JP (1) JP6991068B2 (fr)
AU (1) AU2016262164B2 (fr)
CA (1) CA2985653C (fr)
CL (1) CL2017002872A1 (fr)
ES (1) ES2920431T3 (fr)
MX (1) MX392379B (fr)
PE (1) PE20180335A1 (fr)
PL (1) PL3294930T3 (fr)
WO (1) WO2016179703A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020163958A1 (fr) 2019-02-13 2020-08-20 Pultrusion Technique Inc. Article revêtu de plomb pour opérations industrielles en milieu acide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3746584B1 (fr) * 2018-01-29 2023-05-31 Pultrusion Technique Inc. Systèmes d'ancres pour lever une cuve électrolytique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073244A (en) * 1989-03-21 1991-12-17 Korner Chemieanlagenbau Gesellschaft M.B.H. Self-supporting receptacle, especially for use as an electrolysis cell
US5079050A (en) * 1989-11-29 1992-01-07 Corrosion Technology, Inc. Container for corrosive material
US5645701A (en) * 1996-03-08 1997-07-08 Dufresne; Jean L. Capping board with pultruded filling bars
US20030006134A1 (en) * 1999-10-15 2003-01-09 H. Victor Vidaurre Electrolytic cell

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122882Y2 (fr) * 1972-05-24 1976-06-12
CA2028991C (fr) 1989-11-03 1996-02-13 John O. Harry Cuve pour matieres corrosives
US5066379A (en) * 1990-06-14 1991-11-19 Corrosion Technology, Inc. Container for corrosive material
AU1286297A (en) * 1995-12-18 1997-07-14 Corrosion IP Corp. Container for corrosive material
AU2010290196B2 (en) * 2009-09-07 2015-12-17 Norsk Hydro Asa Cathode shell structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073244A (en) * 1989-03-21 1991-12-17 Korner Chemieanlagenbau Gesellschaft M.B.H. Self-supporting receptacle, especially for use as an electrolysis cell
US5079050A (en) * 1989-11-29 1992-01-07 Corrosion Technology, Inc. Container for corrosive material
US5645701A (en) * 1996-03-08 1997-07-08 Dufresne; Jean L. Capping board with pultruded filling bars
US20030006134A1 (en) * 1999-10-15 2003-01-09 H. Victor Vidaurre Electrolytic cell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020163958A1 (fr) 2019-02-13 2020-08-20 Pultrusion Technique Inc. Article revêtu de plomb pour opérations industrielles en milieu acide
US20220106696A1 (en) * 2019-02-13 2022-04-07 Pultrusion Technique Inc. Lead-coated article for industrial operations in acidic medium
AU2020222407B2 (en) * 2019-02-13 2025-02-27 Pultrusion Technique Inc. Lead-coated article for industrial operations in acidic medium

Also Published As

Publication number Publication date
JP2018517058A (ja) 2018-06-28
PE20180335A1 (es) 2018-02-16
JP6991068B2 (ja) 2022-01-12
AU2016262164A1 (en) 2017-11-30
MX2017014552A (es) 2018-03-15
EP3294930A4 (fr) 2019-01-16
EP3294930A1 (fr) 2018-03-21
EP3294930B1 (fr) 2022-03-16
CL2017002872A1 (es) 2018-04-20
PL3294930T3 (pl) 2022-09-26
MX392379B (es) 2025-03-24
WO2016179703A1 (fr) 2016-11-17
ES2920431T3 (es) 2022-08-03
CA2985653C (fr) 2022-10-25
AU2016262164B2 (en) 2021-04-08
CA2985653A1 (fr) 2016-11-17

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