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US20080142374A1 - Apparatus For Recovery Metal - Google Patents

Apparatus For Recovery Metal Download PDF

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Publication number
US20080142374A1
US20080142374A1 US11/573,746 US57374605A US2008142374A1 US 20080142374 A1 US20080142374 A1 US 20080142374A1 US 57374605 A US57374605 A US 57374605A US 2008142374 A1 US2008142374 A1 US 2008142374A1
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US
United States
Prior art keywords
metal
metal recovery
copper
slits
board
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.)
Abandoned
Application number
US11/573,746
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English (en)
Inventor
Hisashi Iwama
Hiroaki Tanaka
Harunobu Kimura
Hitoshi Tanaka
Yutaka Hirota
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Furukawa Electric Co Ltd
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Furukawa Electric Co Ltd
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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Assigned to THE FURUKAWA ELECTRIC CO., LTD. reassignment THE FURUKAWA ELECTRIC CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HIROTA, YUTAKA, IWAMA, HISASHI, KIMURA, HARUNOBU, TANAKA, HIROAKI, TANAKA, HITOSHI
Publication of US20080142374A1 publication Critical patent/US20080142374A1/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
    • C25C7/007—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells comprising at least a movable electrode
    • 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
    • C25C7/02—Electrodes; Connections thereof
    • 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
    • C25C7/06—Operating or servicing
    • C25C7/08—Separating of deposited metals from the cathode

Definitions

  • the present invention relates to a metal recovery apparatus and more particularly, to a metal recovery apparatus for recovering metal contained in an acidic solution or the like.
  • an oxide is produced on the surface of the copper product or copper alloy product during the process. This oxide is removed by a treatment using a sulfuric acid solution and after the treatment, copper ions remain in the sulfuric acid solution.
  • the copper ion concentration of the sulfuric acid solution increases with increase in number of times of treatment and the oxide removal performance of the sulfuric acid solution is deteriorated. For this reason, the sulfuric acid solution needs to be exchanged regularly, however, this exchange increases the cost.
  • the method for recovering a copper component from the sulfuric acid solution includes crystallization, copper plate electrodeposition, barrel electrodeposition and the like.
  • Crystallization is a method of cooling a sulfuric acid solution containing copper ions to precipitate copper sulfate therefrom.
  • cooling of the solution requires much power, which increases the cost.
  • Copper plate electrodeposition is a method of immersing a copper plate as a negative plate in a sulfuric acid solution containing copper ions to deposit copper on the copper plate surface.
  • the cost of preparing the negative plate is high.
  • the negative plate to which the copper is adhered by copper precipitation is heavy, the negative plate is difficult to take out of the solution.
  • Barrel electrodeposition is a method of putting a copper chip as an electrode into a basket immersed in a sulfuric acid solution to deposit copper on the copper chip surface.
  • it is necessary to prepare a mechanism for taking the copper chip out of the basket, which increases the cost of the apparatus.
  • the documents 1 to 4 listed below also disclose methods of recovering of a copper component.
  • the document 1 discloses a technique of using as a cathode a rotating metal recovery board having a surface of Zr (zirconium) or Zr alloy, immersing a part of the metal recovery board into a treatment solution, carrying a negative current through the rotating metal recovery board to deposit powder copper on the surface by electrolysis and scraping the powder copper by the plate.
  • the document 2 disclose a technique of putting a rotating titanium metal recovery board as a cathode in acid pickling waste water containing copper, carrying a predetermined cathode current therethrough to deposit copper particles on the cathode by electrolysis and scraping the copper particles continuously for recovery.
  • the document 3 discloses a technique of putting an electrode coated with a plastic film containing carbon fine particles in a metal ion containing solution thereby to deposit metal fine particles on the surface of the film for recovery.
  • the document 4 discloses a technique of using as a cathode a copper-plated copper plate which has a surface coated with a plastic film containing carbon fine particles and is subjected to heat treatment, and recovering metal fine particles from a solution containing metal ions by electrolysis.
  • the rotating metal recovery board having a surface of Zr or Zr alloy or the titanium metal recovery board is used to deposit copper on its surface by electrolysis, the copper is adhered to the metal recovery board tightly, and therefore, scraping of the copper becomes difficult.
  • the electrodeposition plate when the electrodeposition plate is coated with a plastic film containing carbon fine particles, copper is deposited on the film surface in the form of powder, and therefore, the material deposited can be easily removed.
  • the recovery amount is less than 1 kg, for example, 210 g per 24 hours and the recovery performance is poor. Further, when the recovered powder copper is dissolved and cast, the yield rate is poor and recycling is difficult because of the powder state.
  • the present invention has an object to provide a metal recovery apparatus capable of recovering metal in a solution effectively and in such a manner that the metal is easy to recycle.
  • the present invention provides a metal recovery apparatus comprising a metal recovery board having an electrodeposition surface or conductive plate on which a metal component precipitated out of a solution is deposited and an insulator formed around the electrodeposition surface or on a part of a surface of the conductive plate.
  • a metal recovery apparatus has a metal recovery board having an insulator formed around a pattern of electrodeposition surface or a part of the conductive plate so as to deposit a metal component on an area not coated with the insulator
  • the metal component deposited on the metal recovery board can take the shape of a cluster large enough to facilitate recovery and recycling.
  • FIG. 1 is a view illustrating a structure of a metal recovery apparatus according to an embodiment of the present invention
  • FIG. 2 is a cross sectional view of a structure of a metal recovery board as a first example used in a metal recovery apparatus according to the embodiment of the present invention
  • FIGS. 3A and 3B are cross sectional views each of a structure of a metal recovery board as a modification of the first example used in a metal recovery apparatus according to the embodiment of the present invention
  • FIG. 4 is a cross sectional view of a structure of a metal recovery board as a second example used in a metal recovery apparatus according to the embodiment of the present invention
  • FIGS. 5A and 5B are cross sectional views each of a structure of a metal recovery board as a modification of the second example used in a metal recovery apparatus according to the embodiment of the present invention
  • FIG. 6 is a plan view illustrating a first example of slits of a metal recovery board used in a metal recovery apparatus according to the embodiment of the present invention
  • FIG. 7 is a plan view illustrating a second example of slits of a metal recovery board used in a metal recovery apparatus according to the embodiment of the present invention.
  • FIG. 8 is a plan view illustrating a third example of slits of a metal recovery board used in a metal recovery apparatus according to the embodiment of the present invention.
  • FIG. 9 is a plan view illustrating a fourth example of slits of a metal recovery board used in a metal recovery apparatus according to the embodiment of the present invention.
  • FIG. 10 is a view illustrating a structure of a scraper blade as a first modified example used in a metal recovery apparatus according to the embodiment of the present invention.
  • FIG. 11 is a view illustrating a structure of a scraper blade as a second modified example and an electrolysis vessel as a modified example used in a metal recovery apparatus according to the embodiment of the present invention
  • FIG. 12 is a view illustrating a structure of a scraper blade as a third modified example used in a metal recovery apparatus according to the embodiment of the present invention.
  • FIG. 13 is a view illustrating a structure of a scraper blade as a fourth modified example used in a metal recovery apparatus according to the embodiment of the present invention.
  • FIG. 1 illustrates a structure of a metal recovery apparatus according to an embodiment of the present invention.
  • a circular-shaped metal recovery board 2 is provided with at least a part thereof immersed in the acid pickling waste water R and the metal recovery board 2 is supported rotatably by a rotator 3 .
  • the metal recovery board 2 is used as a cathode (negative electrode) in the acid pickling waste water R and has a structure as illustrated in cross sectional views of FIGS. 2 , 3 A and 3 B.
  • the metal recovery board 2 illustrated in FIG. 2 has a circular-shaped conductive plate 2 a of corrosion-resistant metal and an insulating film 2 b of, for example, 0.1 mm to 10 mm in thickness formed on each surface of conductive plate 2 a .
  • the insulating film 2 b on at least one surface of the metal recovery board 2 has slits 2 s of a small width, for example, 10 mm or less in width formed thereon. These slits 2 s are recesses relative to the surface of the conductive plate 2 a.
  • each slit 2 s may be smaller at the conductive plate 2 a side (bottom side) than at the opposite side (surface side) as shown in FIG. 3A or larger at the conductive plate 2 a side than at the opposite side as shown in FIG. 3B .
  • the width of each slit is narrower at the conductive plate 2 a side as shown in FIG. 3A , it becomes preferably easy to separate metal deposited on the metal recovery board 2 .
  • a metal recovery board 2 illustrated in FIG. 4 has a conductive plate 2 a of corrosion-resistant metal having narrow protuberant portions 2 t of, for example, 0.1 mm to 10 mm in height and 10 mm or less in width formed on at least one surface thereof and an insulating film 2 b formed on each surface of the conductive plate 2 a except the protuberant portions 2 t .
  • portions of the insulating films 2 b where the protuberant portions 2 t of the conductive plate 2 a are exposed constitute slits 2 s .
  • the protuberant portions 2 t of the conductive plate 2 a are formed by grinding, etching or the like.
  • the upper surface of the insulating film 2 b and the upper surfaces of the protuberant portions 2 t are almost flat.
  • each protuberant portion 2 t may be smaller at the conductive plate 2 a side than at the opposite side (surface side) as shown in FIG. 5A or larger at the conductive plate 2 a side than at the opposite side as shown in FIG. 5B .
  • the width of each protuberant portion is narrower at the conductive plate 2 a side as shown in FIG. 5A , it becomes preferably easy to separate metal deposited on the metal recovery board 2 .
  • used as a corrosion-resistant metal of the conductive plate 2 a is, for example, stainless, and used as a material of the insulating films 2 b is a resin such as fluorocarbon resin or polypropylene, which serves to prevent deposition of metal on the conductive plate 2 a.
  • Forming of the insulating films 2 b on the conductive plate 2 a is carried out by putting the conductive plate 2 a and the insulating films 2 b together and heating them or bonding the conductive plate 2 a and the insulating films 2 b by an adhesive agent.
  • the heating temperature is determined appropriately in view of a softening temperature of the insulating films 2 b or the like.
  • the adhesive agent is selected in view of an adhesive strength of the solidified conductive plate 2 a and insulating films 2 b.
  • the slits 2 s formed in the circular-shaped metal recovery board 2 take the shape of plane rings formed concentrically with a predetermined pitch.
  • the slits 2 s are formed by grinding a part of the insulating films 2 b to have a desired shape by machine work after fixing and bonding the insulating films 2 b on the conductive plate 2 a.
  • each slit 2 s is set to be large enough to facilitate peeling and removing of metal clusters growing on the conductive plate 2 a .
  • the pitch between adjacent two of the slits 2 s is small, the insulating films 2 b are easily peeled off while a scraper blade 6 , which is described later, slides on the surface of the metal recovery board 2 .
  • the pitch is preferably 1 mm or more.
  • the total area of slits 2 s is larger.
  • an anode 4 of corrosion-resistant material for example, stainless SUS304, is provided in such a manner that it is immersed in acid pickling waste water R.
  • the anode 4 is arranged with a given spacing from the surface on which the slits 2 s exist of the metal recovery board 2 , and the anode 4 and the conductive plate 2 a of the metal recovery board 2 are connected to the direct-current power source 5 .
  • This scraper blade 6 is arranged inclined gradually downwardly from the center side of the metal recovery board 2 to the periphery side.
  • the scraper blade 6 is made of a material such as metal having enough strength to scrape metal clusters growing on the metal recovery board 2 .
  • the scraper blade 6 may be made of steel, however a corrosion-resistant material such as stainless is preferably used. Under the lower part of the scraper blade 6 , there is provided a metal recovery box 10 .
  • a first pipe 8 linked to an inlet 7 a of the circulating vessel 7 .
  • a second pipe 9 linked to an inlet 1 b of the electrolysis vessel 1 .
  • a circulating pump 11 is attached to the midpoint of the first pipe 8 so that acid pickling waste water R inside the electrolysis vessel 1 can circulate through the first pipe 8 , the circulating vessel 7 and the second pipe 9 .
  • the metal recovery board 2 used as the conductive plate 2 a illustrated in FIGS. 2 to 5 is a circular-shaped stainless plate and used as the insulating films 2 b is a fluorocarbon resin film.
  • the insulating films 2 b used in this case have ring slits 2 s of different diameters, 5 mm in pitch and 1 mm in slit width illustrated in FIG. 6 formed thereon.
  • the acid pickling waste water R in an amount sufficient to immerse a part of the metal recovery board 2 therein is put into the electrolysis vessel 1 .
  • the acid pickling waste water R here is, for example, a sulfuric acid solution used to remove an oxide on the surface of a copper product or copper alloy product, which solution contains copper.
  • This current passage causes electrolysis, and copper in the acid pickling waste water R is deposited on the surface of the conductive plate 2 a exposed inside the slits on the metal recovery board 2 .
  • the conditions for current-carrying in this embodiment are a current of 5 to 70 dA/mm 2 and a voltage of 1 to 20 V.
  • copper clusters B grow along and on the slits 2 s in the surface of the metal recovery board 2 , which is shown in FIGS. 2 to 5 . As the copper is deposited continuously the copper clusters B jut from the surface of the insulating film 2 b.
  • the metal recovery board 2 is rotated by the rotator 3 at a predetermined speed.
  • the scraper blade 6 is pressed against the surface of the metal recovery board 2 in which the slits 2 s are formed and the metal recovery board 2 is rotated by the rotator 3 . Then, the copper clusters B jutting from the slits 2 s are scraped by the scraper blade 6 and removed from the metal recovery board 2 .
  • the copper clusters scraped off by the upper part of the scraper blade 6 are, for example, dropped into the recovery box 10 placed under the scraper blade 6 .
  • each slit 2 s formed on the insulating film 2 b of the metal recovery board 2 is 10 mm or less and small, the bottom of the copper cluster B is thin and is easy to be peeled or broken. Hence, removal of the copper clusters B from the metal recovery board 2 by the scraper blade 6 becomes easy and efficient recycling of the copper clusters B recovered is made possible.
  • slits 2 s of an insulating film 2 b covering the conductive plate 2 a may be provided on only one surface or on both surfaces of the conductive plate 2 a .
  • the slits 2 s are provided on the both surfaces as a recovery amount is increased.
  • the metal recovery boards 2 provided may be one or increased in number to be two or more.
  • two or more metal recovery boards 2 are provided as a recovery amount is increased. When two or more metal recovery boards are provided, they may be arranged in parallel or coaxially.
  • a metal recovery portion of the present invention is not limited to the conductive plate 2 a . Any structure other than a plate may be used if it has an electrodeposition surface. For example, an apparatus for recovering metal by depositing the metal on slits 2 s provided on a curved surface of a drum is also included in the present invention. Furthermore, an apparatus for recovering metal by depositing the metal on a metal mesh attached to a resin insulating plate is included in the present invention and in this case, the metal mesh pattern is used as an electrodeposition surface and surrounded by the insulating material. In short, any metal recovery apparatus can be used that has an electrodeposition surface on which a metal component is precipitated from a solution and deposited and an insulating film formed on a part of the surface of the electrodeposition surface.
  • a metal recovery apparatus of the present invention is not limited to those illustrated in the drawings used for description. In other words, it is necessary only to remove deposited metal by bringing the scraper blade 6 into contact with the metal recovery board 2 and shifting their positional relationship relatively.
  • the shape of the metal recovery board 2 is not limited to a circular board or may be a square board. Further, the metal recovery board 2 may not be rotated or may be fixed.
  • a metal recovery apparatus of the present invention has a structure for recovering metal and is capable of recovering, among metals, gold or gold alloy, silver or silver alloy, nickel or nickel alloy, zinc or zinc alloy, tin or tin alloy, and copper or copper alloy. What is most suitably recovered is copper or copper alloy.
  • a first metal recovery board 2 having a structure illustrated in FIG. 2 and ring-like slits 2 s illustrated, in FIG. 6
  • a second metal recovery board 2 having a structure illustrated in FIG. 4 and ring-like slits 2 s illustrated in FIG. 6
  • Each of the metal recovery boards 2 of the examples 1 and 2 had a conductive plate 2 a of circular-shaped stainless plate having a diameter of 800 mm and a thickness of 10 mm and insulating films 2 b of fluorocarbon resin (Tetra-Fluoro-Ethylene) each having a thickness of 1 mm fixed and bonded to the surface of the conductive plate 2 a .
  • Formed on an insulating film 2 b were ring-like slits 2 s which were concentric circles having a pitch of 5 mm and a width of 1 mm.
  • a third metal recovery board 2 having a cross section illustrated in FIG. 2 and plural narrow and straight slits 2 s extending radially from the center as illustrated in FIG. 7 .
  • the metal recovery board 2 of the example 3 had a conductive plate 2 a of circular-shaped stainless plate having a diameter of 800 mm and a thickness of 10 mm and insulating films 2 b of polyamide each having a thickness of 1 mm fixed and bonded to the surface of the conductive plate 2 a .
  • Formed on an insulating film 2 b were slits 2 s having a pitch of 5 mm and a width of 1 mm.
  • a stainless circular plate was prepared which was not coated with an insulating material.
  • Prepared as a comparative example 2 was a stainless circular plate having surfaces coated with Zr, and prepared as a comparative example 3 was a titanium circular plate.
  • prepared as a comparative example 4 was a stainless circular plate coated with plastic containing carbon fine particles. The diameter of each circular plate of the comparative examples 1 to 4 was 800 mm.
  • the anode 4 was made of stainless SUS304.
  • the distance between the anode 4 and the metal recovery board 2 of each example and the distance between the anode 4 and the circular plate of each comparative example were both set at 20 mm.
  • the scraper blade 6 was made of a rectangular parallelepiped stainless having a width of 50 mm, a thickness of 20 mm and a length of 600 mm.
  • ingredients of the acid pickling waste water were 71 g/L (gram/Liter) of copper, 16.5 g/L of sulfuric acid and 2.7 g/L of hydrogen peroxide.
  • the amount of the acid pickling waste water injected in the electrolysis vessel 1 is 200 L.
  • the current-carrying conditions of the direct-current power source 5 were an average voltage of 3.2 V, a current of 542 A and time duration of 32 hours.
  • an object to be recovered is not limited to copper and may be any other metals.
  • an appropriate material for example, when silver is recovered from a cyanide alkaline solution containing silver, fluorocarbon resin or polypropylene is preferably used as a material of the insulating film 2 b.
  • the slits of the metal recovery board 2 are not limited to the ring-shaped slits or straight slits extending in a radial pattern as shown in FIGS. 6 and 7 , respectively, and may be combination of concentric-circle-shaped slits and the radially extending slits as shown in FIG. 8 , rectangular-shaped slits or island-shaped slits as shown in FIG. 9 , or spiral-shaped slits (not shown).
  • the intervals of concentric-circle-shaped slits and the radially extending slits are adjusted so that the plural island-shaped insulating films 2 b separated by slits 2 s can be spaced uniformly.
  • the size of each slit is about 1 mm ⁇ 1 mm.
  • each slit is shaped like a ring having a diameter of 1 mm.
  • the slits 2 s illustrated in FIGS. 6 to 9 may have a structure where the conductive plate 2 a exists under the hollow portions of the insulating film 2 b as illustrated in FIGS. 2 and 3 or a structure where the insulating film 2 b exists around the protuberant portions 2 t of the conductive plate 2 a as illustrated in FIGS. 4 and 5 .
  • the metal recovery board 2 as illustrated in FIGS. 4 and 5 adopts a method of forming protuberant portions 2 t on the conductive plate 2 a before filling around the protuberant portions 2 t with an insulating material, however, forming of the protuberant portions 2 t may be performed by, for example, grinding the conductive plate 2 a or etching the conductive plate 2 a .
  • the metal recovery board 2 illustrated in FIG. 9 adopts a method of grinding the conductive plate 2 a in two intersecting directions to form the rectangular protuberant portions 2 t before coating the grinded portions with an insulating material.
  • Copper clusters growing on the slits 2 s of the four metal recovery boards illustrated in FIGS. 6 to 9 were removed. As a result, removal of the copper clusters was easier in the metal recovery board 2 having radially extending slits 2 s as illustrated in FIG. 7 than that in the metal recovery board 2 having concentric-circles-shaped slits 2 s illustrated in FIG. 6 . In case of the metal recovery board 2 having both of the radially extending slits 2 s and the concentric-circles-shaped slits 2 s as illustrated in FIG. 8 , the electrodeposition area was wider than the electrodeposition areas of the metal recovery boards of FIGS. 6 and 7 and scrapping off of the copper clusters was easier than that of the metal recovery board 2 illustrated in FIG.
  • the scraper blade 6 applied to the above-described metal recovery apparatus is not limited to an angle blade and can adopt a scraper blade as illustrated in FIGS. 10 to 12 , for example.
  • a scraper blade 60 illustrated in FIG. 10 has a rectangular blade main body 61 inclined downwardly from the center of the circular metal recovery board 2 to the outside, a vibration device 62 attached to the blade main body 61 and serrate protrusions 63 attached on the upper surface of the blade main body 61 and abutting diagonally across the direction of the slits 2 s .
  • the upper surface of the blade main body 61 has an area for sliding metal clusters scraped from the metal recovery board 2 by the protrusions 63 .
  • the metal clusters on the metal recovery board 2 scraped by the protrusions 63 slide on the blade main body 61 by their self-weights and vibrations of the vibration device 62 and fall into the recovery box 10 behind the scraper blade 60 .
  • the protrusions 63 of the scraper blade 60 are serrate, the protrusions 63 are capable of scraping metal clusters at a desired angle of the serrate protrusions. Hence, the scraper blade 60 can remove metal clusters easier than the straight blade 6 illustrated in FIG. 1 .
  • the slits 2 s are shaped like rings, the angle is oblique to their tangential direction.
  • the scraper blade 60 can have comb-teeth protrusions 63 a at positions where the scraper blade 60 moves on the ring-shaped slits 2 s of the metal recovery board 2 , as illustrated in FIG. 11 .
  • the protrusions 63 a scrape metal clusters while moving on the slits 2 s by rotation of the metal recovery board 2 .
  • a scraper blade 64 illustrated in FIG. 12 is a blade traveling in a direction perpendicular to the longitudinal direction of the slits 2 s of the metal recovery board 2 .
  • the bottom of the electrolysis vessel 1 under the scraper blade 64 has a inclined surface 1 d for sliding scraped and dropped metal clusters C into the circulating vessel 7 .
  • a lower portion 1 s of the inclined surface 1 d is provided with an outlet 1 e.
  • Attached to the outlet 1 e is a pipe 13 for leading the metal clusters C to a filter 12 of the circulating vessel 7 ,
  • the metal clusters C passing through the outlet 1 e are recovered by the filter 12 of the circulating vessel 7 and the acid pickling waste water is made to pass through the filter 12 to get inside the circulating vessel 7 .
  • a stopper is provided just in front of the lower portion 1 s of the electrolysis vessel 1 so that the metal clusters C can be prevented from falling into the circulating vessel 7 .
  • a scraper blade 65 illustrated in FIG. 13 is fixed rotatably around a supporting point which is an end of the horizontally-long, rectangular blade main body further from the center of the metal recovery board 2 . Attached to the supporting point is a rotator 66 striking the blade main body upwardly. Further, a recovery box 10 is provided outside of the supporting point of the scraper blade 65 .
  • the scraper blade 65 Scrapes the metal clusters C and strike the scraped metal clusters C up to put them into the recovery box 10 .
  • the scraper blade 65 is rotated in the same direction of striking up, scrapes metal clusters on the metal recovery board 2 and strikes up the metal clusters.

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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)
US11/573,746 2004-08-17 2005-08-12 Apparatus For Recovery Metal Abandoned US20080142374A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2004237509 2004-08-17
JP2004-237509 2004-08-17
JP2005-230772 2005-08-09
JP2005230772A JP2006083466A (ja) 2004-08-17 2005-08-09 金属回収装置
PCT/JP2005/014849 WO2006019060A1 (fr) 2004-08-17 2005-08-12 Appareil destiné à récupérer du métal

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US (1) US20080142374A1 (fr)
EP (1) EP1798312A4 (fr)
JP (1) JP2006083466A (fr)
WO (1) WO2006019060A1 (fr)

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US20130160797A1 (en) * 2011-12-22 2013-06-27 Ge-Hitachi Nuclear Energy Americas Llc Cathode scraper system and method of using the same for removing uranium
CN103436916A (zh) * 2013-08-05 2013-12-11 湖南凯天重金属污染治理工程有限公司 一种从低含铜废水中回收精铜的工艺及装置
US8746440B2 (en) 2011-12-22 2014-06-10 Ge-Hitachi Nuclear Energy Americas Llc Continuous recovery system for electrorefiner system
US8771482B2 (en) 2010-12-23 2014-07-08 Ge-Hitachi Nuclear Energy Americas Llc Anode shroud for off-gas capture and removal from electrolytic oxide reduction system
US8882973B2 (en) 2011-12-22 2014-11-11 Ge-Hitachi Nuclear Energy Americas Llc Cathode power distribution system and method of using the same for power distribution
US8900439B2 (en) 2010-12-23 2014-12-02 Ge-Hitachi Nuclear Energy Americas Llc Modular cathode assemblies and methods of using the same for electrochemical reduction
US8956524B2 (en) 2010-12-23 2015-02-17 Ge-Hitachi Nuclear Energy Americas Llc Modular anode assemblies and methods of using the same for electrochemical reduction
US8968547B2 (en) 2012-04-23 2015-03-03 Ge-Hitachi Nuclear Energy Americas Llc Method for corium and used nuclear fuel stabilization processing
US9017527B2 (en) 2010-12-23 2015-04-28 Ge-Hitachi Nuclear Energy Americas Llc Electrolytic oxide reduction system
US9150975B2 (en) 2011-12-22 2015-10-06 Ge-Hitachi Nuclear Energy Americas Llc Electrorefiner system for recovering purified metal from impure nuclear feed material

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WO2024154733A1 (fr) * 2023-01-17 2024-07-25 株式会社キノテック Procédé et système de collecte de produit électrolytique

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Cited By (12)

* Cited by examiner, † Cited by third party
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US8771482B2 (en) 2010-12-23 2014-07-08 Ge-Hitachi Nuclear Energy Americas Llc Anode shroud for off-gas capture and removal from electrolytic oxide reduction system
US8900439B2 (en) 2010-12-23 2014-12-02 Ge-Hitachi Nuclear Energy Americas Llc Modular cathode assemblies and methods of using the same for electrochemical reduction
US8956524B2 (en) 2010-12-23 2015-02-17 Ge-Hitachi Nuclear Energy Americas Llc Modular anode assemblies and methods of using the same for electrochemical reduction
US9017527B2 (en) 2010-12-23 2015-04-28 Ge-Hitachi Nuclear Energy Americas Llc Electrolytic oxide reduction system
US9920443B2 (en) 2010-12-23 2018-03-20 Ge-Hitachi Nuclear Energy Americas Llc Modular cathode assemblies and methods of using the same for electrochemical reduction
US20130160797A1 (en) * 2011-12-22 2013-06-27 Ge-Hitachi Nuclear Energy Americas Llc Cathode scraper system and method of using the same for removing uranium
US8746440B2 (en) 2011-12-22 2014-06-10 Ge-Hitachi Nuclear Energy Americas Llc Continuous recovery system for electrorefiner system
US8882973B2 (en) 2011-12-22 2014-11-11 Ge-Hitachi Nuclear Energy Americas Llc Cathode power distribution system and method of using the same for power distribution
US8945354B2 (en) * 2011-12-22 2015-02-03 Ge-Hitachi Nuclear Energy Americas Llc Cathode scraper system and method of using the same for removing uranium
US9150975B2 (en) 2011-12-22 2015-10-06 Ge-Hitachi Nuclear Energy Americas Llc Electrorefiner system for recovering purified metal from impure nuclear feed material
US8968547B2 (en) 2012-04-23 2015-03-03 Ge-Hitachi Nuclear Energy Americas Llc Method for corium and used nuclear fuel stabilization processing
CN103436916A (zh) * 2013-08-05 2013-12-11 湖南凯天重金属污染治理工程有限公司 一种从低含铜废水中回收精铜的工艺及装置

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EP1798312A1 (fr) 2007-06-20

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