JP2016166400A - Metal separation collection method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method for electrically separating and collecting two kinds or more kinds of metals which are made into an alloy or integrated into metal units, using water in which no solute is dissolved.SOLUTION: There is provided a metal crystallization collection electrolysis tank 12 comprising: a metal ionization electrolysis tank 11 comprising a water tank 15 storing water 20 therein, and storing two or more kinds of metals 40 made into an alloy or integrated, a DC power supply 16 in which the metals 40 are a positive electrode, for applying a high voltage for dissolving whole metals 40, and a carbon dioxide bubbling device 17 for bubbling carbon dioxide 21 from a lower part of the metal 40; water 22 in which metal ions of target metal 42 and other metal 43 are dissolved; a water tank containing an anode 25 and a cathode 26; other water tank 23 containing other cathode 27 which can be replaced with the cathode 26; and a DC power source 28 for, after crystallizing other metal 43 other than the target metal 42 on the cathode 26, replacing the cathode 26 with the cathode 27, for crystallizing the target metal 42. A collection method of metal using the same, is also provided.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal separation and collection method and apparatus, and more particularly, to a metal separation and collection method and apparatus for electrically separating and collecting a single metal from an alloy or two or more integrated metals. .

Usually, electrolysis is used to make a metal simple substance, and electrorefining is used to increase the purity of the metal simple substance.
In the electrolysis and refining, since an aqueous solution of an electrolyte is used as a solution, the solution leaks and adversely affects the environment, and disposal is troublesome and expensive.

(Non) Patent Literature n

  An object of the present invention is to use a solution containing only water in which a solute is not dissolved, and it is possible to electrically separate and collect from an alloy or two or more kinds of integrated metals into a single metal, and leakage of the solution or It is an object of the present invention to provide a method and apparatus for separating and collecting metals that can avoid environmental pollution due to disposal and reduce the cost of disposal.

  In the method for separating and collecting a metal of the present invention, an alloy or two or more kinds of integrated metals are immersed in water, and carbon dioxide is bubbled from the bottom of the alloy or two or more kinds of integrated metals in the water. And applying a high voltage to the alloy or two or more integrated metals to dissolve all of the alloy or two or more integrated metals in the water, and then the alloy or the integrated two A metal ionization process in which more than a species of metal is dissolved in the water to form ions, and the water in which the metal ions are dissolved are transferred separately, and the anode and cathode are placed apart from each other in the transferred water. The other metal deposition step of depositing other metals on the cathode by passing a direct current through the both electrodes for an appropriate period of time with the strength of voltage and current for depositing other metals, and the cathode on which other metals were deposited another The electrode is exchanged, and direct current is continuously passed through the electrodes at a voltage and current intensity for depositing the target metal for an appropriate time, and the target metal is deposited on the other cathode, or the target Move another metal-dissolved water into another water, put another anode and cathode apart from each other, and continue to apply direct current to the two electrodes for a certain time with the strength of voltage and current to deposit the target metal. And a target metal sampling step of depositing and sampling the target metal on the other cathode.

  In addition, the metal separation and collection device of the present invention is filled with water, and a water tank, an alloy thereof, or two integrated types in which two or more types of metals or integrated metals are put in the water. The positive electrode is electrically connected to the above metal, and a high voltage that melts all of the alloy or two or more kinds of integrated metals in the water is applied to the alloy or the two or more kinds of integrated metals. A metal ionization electrolytic cell assembled by a carbon dioxide bubbling device for bubbling carbon dioxide from below the direct current power source and the alloy or two or more kinds of metals integrated in the water tank, and the metal ionization electrolytic cell by piping A water tank connected to the aquarium and filled with water in which a plurality of metal ions that are the target metal and other metal ions are dissolved, and the target metal and other metal ions are dissolved Anode and cathode placed in water apart from each other, another cathode that allows the cathode to be replaced, and direct current to the anode and cathode with the strength of voltage and current to deposit other metals than the target metal Other metals that can be assembled with a DC power source that connects DC to the anode and another cathode with the strength of voltage and current to deposit the target metal after deposition of the other metal after deposition of the other metal And a metal precipitation collecting electrolytic cell for the purpose of combined use.

  In the method and apparatus for separating and collecting metal according to the present invention, two or more kinds of alloys or integrated metals are immersed in water in which solutes are not dissolved, and the alloys or integrated metals are first integrated under bubbling of carbon dioxide. Applying a high voltage to two or more metals to dissolve the alloy or all of the two or more integrated metals into the water to form ions, and then deposit a metal other than the target metal, Then, the target metal is deposited and collected, while the deposited other metal is immersed in another water in which the solute is not dissolved, and a high voltage is applied to the other metal under bubbling of carbon dioxide. All of the metal is dissolved in the other water to form ions again, the remaining metal is deposited, and then the next target metal is deposited and collected. More electricity from metal It can be separated and collected, and environmental pollution is avoided by leakage and discharge, etc., inspection and repair are easy and easy, and maintenance and management including waste water is easy and economical. Can be embodied in a simple structure, and its inspection and repair is simple and easy, making maintenance and maintenance easier and more economical, and even when a large number of single metals are separated and collected, the number of single metals can be reduced. Depending on the order, ionization, precipitation, reionization, and precipitation are repeated in sequence, so that separation and collection of simple metals can be performed efficiently and economically, and metal can be separated and collected as high purity simple substances, and metal recycling In addition to being safe and economically feasible, the use of renewable electrical energy makes it even more economical and, as a result, practical and useful.

It is the general | schematic figure which showed the specific example of the isolation | separation extraction method and apparatus of the metal of this invention which isolate | separates and collects aluminum, zinc, iron, etc. as a single-piece | unit from many used aluminum alloys.

    In the method for separating and collecting a metal of the present invention, an alloy or two or more kinds of integrated metals are immersed in water, and carbon dioxide is bubbled from the bottom of the alloy or two or more kinds of integrated metals in the water. And applying a high voltage to the alloy or two or more integrated metals to dissolve all of the alloy or two or more integrated metals in the water, and then the alloy or the integrated two A metal ionization process in which more than a species of metal is dissolved in the water to form ions, and the water in which the metal ions are dissolved are transferred separately, and the anode and cathode are placed apart from each other in the transferred water. The other metal deposition step of depositing other metals on the cathode by passing a direct current through the both electrodes for an appropriate period of time with the strength of voltage and current for depositing other metals, and the cathode on which other metals were deposited another The electrode is exchanged, and direct current is continuously passed through the electrodes at a voltage and current intensity for depositing the target metal for an appropriate time, and the target metal is deposited on the other cathode, or the target Move another metal-dissolved water into another water, put another anode and cathode apart from each other, and continue to apply direct current to the two electrodes for a certain time with the strength of voltage and current to deposit the target metal. And a target metal sampling step of depositing and sampling the target metal on the other cathode.

  Further, the method for separating and collecting a metal according to the present invention includes immersing an alloy or two or more kinds of integrated metals in water, and carbon dioxide from under the alloy or two or more kinds of integrated metals in the water. A high voltage that melts all of the alloy or two or more integrated metals in the water while bubbling the alloy or the two or more integrated metals and then the alloy or the integrated The metal ionization process in which two or more kinds of metals are dissolved in the water to form ions, and the water in which the metal ions are dissolved are transferred separately, and the anode and the cathode are put in the transferred water and the target metal is separated from each other. Other metal deposition steps in which other metals are deposited on the cathode by continuously passing a direct current through the two electrodes for an appropriate period of time with the strength of voltage and current for depositing other metals, and deposition of other metals cathode Replace with another cathode, let DC flow through the electrodes for an appropriate time at the voltage and current strength to deposit the target metal, and deposit the target metal on the other cathode, or Transfer the water in which the target metal is dissolved further, put another anode and cathode apart from each other in the water, and continue direct current to the both electrodes for a certain time with the strength of voltage and current to deposit the target metal And the target metal collecting step for collecting the target metal by depositing the target metal on the other cathode, and immersing the cathode on which the other metal is deposited in another water, and the other metal in the water. Bubbling carbon dioxide from beneath the deposited cathode, applying a high voltage to the other metal to dissolve all other metals in the water, and other ions to dissolve the other metal into the water and turn it into ions Money The reionization process and the other metal-dissolved cathode from the other water are removed, and the other anode and cathode are placed in the other water separately from each other for another purpose without bubbling carbon dioxide. The remaining metal deposition step of depositing the remaining metal on the cathode by continuously passing a direct current through the two electrodes at an appropriate voltage and current intensity for depositing the remaining metal other than the metal, and the remaining metal The deposited cathode is replaced with another cathode, and a direct current is continuously passed through both electrodes at a voltage and current intensity for depositing the next target metal for an appropriate time. The voltage and current for precipitating the next target metal or by depositing another water in which the next target metal ion is dissolved and putting another anode and cathode apart from each other and precipitating the next target metal. DC with the strength of Including a next target metal sampling step of continuously passing through the electrodes for an appropriate period of time and then depositing and sampling the next target metal on the cathode.

  The metal separating and collecting apparatus of the present invention is a water tank filled with water and containing a metal or two or more kinds of integrated metals in the water, an alloy thereof or two or more kinds of integrated ones. A DC power supply that electrically connects a positive electrode to a metal and applies a high voltage to the alloy or two or more integrated metals to dissolve all of the alloy or two or more integrated metals in the water And a metal ionization electrolytic cell assembled with a carbon dioxide bubbling device for bubbling carbon dioxide from below the alloy or two or more integrated metals inside the water tank, and a pipe of the metal ionization electrolytic cell Connected to the aquarium and filled with the water in which the target metal and other metal ions are dissolved and led to the water, and the target metal and other metal ions in the water The anode and cathode are placed separately, another cathode that allows the cathode to be replaced, and direct current to the anode and cathode at a voltage and current strength that deposits other metals than the target metal. Other metal deposits assembled by a DC power supply that passes the DC to the anode and another cathode with the strength of voltage and current to deposit the target metal after the other metal deposition, by replacing the cathode with another cathode And a metal deposition and collection electrolytic cell for combined use.

  In addition, the metal separation and collection device of the present invention is filled with water, and a water tank, an alloy thereof, or two integrated types in which two or more types of metals or integrated metals are put in the water. The positive electrode is electrically connected to the above metal, and a high voltage that melts all of the alloy or two or more kinds of integrated metals in the water is applied to the alloy or the two or more kinds of integrated metals. A metal ionization electrolytic cell assembled by a carbon dioxide bubbling device for bubbling carbon dioxide from below the direct current power source and the alloy or two or more kinds of metals integrated in the water tank, and the metal ionization electrolytic cell by piping A water tank connected to the aquarium and filled with water in which a plurality of metal ions that are the target metal and other metal ions are dissolved, and the target metal and other metal ions are dissolved Anode and cathode placed in water apart from each other, another cathode that allows the cathode to be replaced, and direct current to the anode and cathode with the strength of voltage and current to deposit other metals than the target metal Other metals that can be assembled with a DC power source that connects DC to the anode and another cathode with the strength of voltage and current to deposit the target metal after deposition of the other metal after deposition of the other metal A metal deposition and collection electrolytic cell for the purpose of precipitation, a water tank filled with water, and a cathode in which other metals are deposited in the water, and a positive electrode is electrically connected to the cathode in which other metals are deposited. A DC power supply that applies a high voltage to the other metal to melt all of the other metal in it, and a carbon dioxide bubble that bubbles carbon dioxide from under the other metal inside the tank Other metal reionization electrolyzers assembled by the device and connected to that water tank of other metal reionization electrolyzers by piping, the next target metal and a plurality of metal ions, which are the remaining metal ions, have melted An aquarium that leads water into the interior, an anode and a cathode that are separated from each other in water of the next target metal and the remaining metal ions, another cathode that makes the cathode replaceable, and the next A direct current is passed through the anode and cathode at a voltage and current intensity that deposits the remaining metal other than the target metal, and after deposition of the remaining metal, the cathode is replaced with the other cathode and the next target Including the remaining metal deposition and the next purpose metal deposition collection electrolytic cell assembled by a DC power source that passes the DC to its anode and another cathode with the voltage and current strength to deposit the metal .

  Hereinafter, a method and apparatus for separating and collecting metals according to the present invention will be described based on specific examples shown in the drawings. FIG. 1 shows a collection of a large number of used aluminum alloy parts such as aluminum, zinc, iron and the like. 10 shows a specific example 10 of the method and apparatus for separating and collecting a metal according to the present invention as a simple substance, and this method 10 for separating and collecting a metal includes a metal ionization step, another metal precipitation step, and a target metal collecting step. The other metal reionization process, the remaining metal deposition process, and the next target metal sampling process are sequentially performed, while the metal separation and sampling apparatus 10 performs the metal ionization to form the metal separation and sampling method. Electrolytic tank 11, other metal deposition / collection electrolytic tank 12 for the purpose of metal deposition, other metal reionization electrolytic tank 13, and the remaining metal deposition / use of the purpose of metal deposition / collection electrolytic tank 1 Assembled not by it order a.

  In the method for separating and collecting metal 10, the metal ionization step is performed by removing all of the two or more metals 40 that are alloyed or integrated into the water 20 under a bubbling of carbon dioxide 21 in the water 20. In the process of melting the aluminum alloy part 40, a high voltage that dissolves all of the metal (aluminum Al, zinc Zn, iron Fe, etc.) of the aluminum alloy part 40 in the water is immersed in water. It is applied to the aluminum alloy part 40 and all the metal of the aluminum alloy part 40 is dissolved in the water 20 to become ions.

  The other metal deposition step is a step of electrically depositing and separating other metals (zinc Zn, iron Fe, etc.) 43 except for the target metal (aluminum Al) 42, and all the metal ions (aluminum. The water 22 in which ions, zinc ions, iron ions, etc. are dissolved is transferred separately, and the anode plate 25 and the cathode plate 26 are put in the transferred water 22 apart from each other, and other metals 43 other than the target metal 42 are placed. Direct current is continuously passed between the bipolar plates 25 and 26 by the strength of the voltage and current to be deposited, and another metal 43 is deposited on the cathode plate 26.

  The target metal collecting step is a step of replacing the cathode plate 26 on which the other metal 43 is deposited with another cathode plate 27 and electrically depositing the target metal 42 on the other cathode plate 27. The cathode plate 26 on which the other metal 43 is deposited is replaced with another cathode plate 27, and a direct current is continuously applied between the bipolar plates 25 and 27 at a voltage and current intensity for depositing the target metal 42 for an appropriate time. Then, the target metal 42 is deposited on the other cathode plate 27. Alternatively, the metal sampling step for this purpose may be performed by transferring the water 22 in which the target metal ions are dissolved after the other metal 43 is deposited, to the water 22 with another anode plate (not shown) and A cathode plate (not shown) is placed apart from each other, and a direct current is passed between the other bipolar plates at a voltage and current intensity for depositing the target metal 43 for an appropriate period of time. The target metal 42 is deposited on the cathode plate and collected.

  In the other metal reionization process, all the other metal 43 is transferred to the other water 31 from the cathode plate 26 in which the other metal 43 is deposited by applying a high voltage under bubbling of carbon dioxide 21 in the other water. In the electrical melting step, the cathode plate 26 on which the other metal 43 is deposited is immersed in the other water 31, and carbon dioxide is deposited in the other water 31 from below the cathode plate 26 on which the other metal 43 is deposited. The other metal (zinc, iron, etc.) 43 is melted in the other water 31 while the other metal (43) is bubbled, and the other metal 43 is dissolved in the other water 31. Ionize.

  In the remaining metal deposition step, the next target metal (zinc) 44 is electrically deposited on another cathode plate 36 using another anode plate 35 and cathode plate 36 without bubbling the carbon dioxide 21. In this step, the cathode plate 36 in which the other metal 43 is dissolved is taken out from the other water 31, and the other anode plate 35 and the cathode plate 37 are put in another water 31 separately from each other, and the carbon dioxide 21 is bubbled. Without passing the direct current between the bipolar plates 35 and 37 with a voltage and current intensity for depositing the remaining metal (iron, etc.) 45 other than the next target metal (zinc) 44, The remaining metal (such as iron) 43 is deposited on the cathode plate 37.

  In the next target metal extraction step, the cathode plate 36 on which the remaining metal 45 is deposited is replaced with another cathode plate 37, and the next target metal (zinc) 44 is electrically connected to the further cathode plate 37. First, the cathode plate 36 on which the remaining metal (such as iron) 45 is deposited is replaced with another cathode plate 37, and the voltage and current for depositing the next target metal (zinc) 44 are firstly deposited. A direct current is passed between the bipolar plates 35 and 37 for an appropriate time with the strength of the following, and the next target metal (zinc) 44 is deposited on the further cathode plate 37. Alternatively, in the next objective metal sampling step, after the remaining metal 45 is deposited, the water in which the remaining metal ions are dissolved is further transferred to another anode plate (not shown). And a cathode plate (not shown) are placed apart from each other, and a direct current is continuously passed between the plates at a voltage and current intensity for depositing the next target metal (zinc), and The next target metal (zinc) is deposited on the cathode plate and collected.

In this metal separation and collection method 10, when the number of metals to be separated and collected further increases, the metal reionization step, the precipitation step, and the like are appropriately connected accordingly and sequentially repeated.
In addition, the voltage when the component metal of the aluminum alloy part 40 is ionized, and the strength of the voltage and current when the component metal is deposited for each metal are determined by the ionization tendency of the component metal.

The ionization tendency of metals is a tendency to become positive ions because they are deprived of electrons and become positive ions, that is, they tend to be positive ions. .
Originally, if the electrons are easily deprived, that is, if the ionization tendency is large, the applied voltage may be small.
On the other hand, if it is difficult to deprive electrons, that is, if the ionization tendency is small, a large voltage is required to deprive electrons, that is, the current must be increased by increasing the voltage.
This time, when taking the electron back into a positive ion and then making it the original metal again, if it is a metal with a strong ionization tendency, the one with the electron taken away and in the positive ion state Therefore, to give an electron to it and return it to its original state, it is necessary to give an electron with a large energy. In other words, a current must be applied by applying a large voltage.
On the other hand, a metal with a weak ionization tendency is likely to return to a stable state of its original state when given an electron, so that a small current flow and a small voltage may be applied to give the electron.

  From the above, in a metal having a strong ionization tendency, the voltage when making ions, that is, the voltage when taking electrons is small, and the voltage when making the original metal, that is, the voltage when giving electrons, is large. On the other hand, in a metal having a weak ionization tendency, the voltage for making ions, that is, the voltage for taking electrons is large, and the voltage for making the original metal, that is, the voltage for giving electrons, is small.

The metal separation / collection device 10 as the metal separation / collection method apparatus includes a metal ionization electrolytic cell 11, a metal precipitation / collection electrolytic cell 12 for other purposes of metal deposition, another metal reionization electrolytic cell 13, The remaining metal depositing and electrolytic cell 14 for the next purpose is assembled in order.
The metal ionization electrolytic cell 11 is filled with water 20, and an aggregate 41 of a number of used aluminum alloy parts (including aluminum Al, zinc Zn, iron Fe, etc.) 40 is contained in the water 20. A high voltage is applied to the aluminum alloy part 40 in order to melt all of the metal of the aluminum alloy part 40 in the water 20 by electrically connecting the positive electrode to the water tank 15 and the aggregate 41 of the aluminum alloy part 40 into the water 20. The DC power source 16 to be applied and the carbon dioxide bubbling device 17 for bubbling the carbon dioxide 21 from below the aggregate 41 of the aluminum alloy parts 40 inside the water tank 15 are assembled.
The carbon dioxide bubbling device 17 is assembled with a carbon dioxide supply source 19 connected to a large number of small-hole bubbling pipes 18 disposed near the bottom of the water tank 15 and a pump (not shown). It is done.

  The other metal deposition / collection electrolytic cell 12 for the purpose of metal deposition is connected to the water tank 15 of the metal ionization electrolytic cell 11 by a pipe 24, and the target metal (aluminum Al) 42 and other metals are connected by a pump (not shown). A water tank 23 in which a plurality of metal ions, which are ions of a metal (zinc Zn, iron Fe, etc.) 43 are introduced and filled therein, is separated from the water 22 in which the target metal and other metal ions are dissolved. The anode plate 25 and the cathode plate 26 to be inserted, another cathode plate 27 that allows the cathode plate 26 to be replaced, and other metals 43 other than the target metal 42 are deposited, and the direct current is applied with the strength of voltage and current. After the other metal 43 is deposited, the cathode plate 26 is replaced with another cathode plate 27 and the target metal 42 is deposited. It assembled the direct current intensity of pressure and current in the anode plate 25 and another of the DC power supply 28 which communicates with the cathode plate 27.

  The other metal reionization electrolytic cell 13 is filled with water 31, a water tank 29 in which the cathode plate 26 on which the other metal 43 is deposited is placed in the water 31, and a positive electrode on the cathode plate 26 on which the other metal 43 is deposited. A DC power source 30 that applies electrical connection to the other metal 43 to apply a high voltage that dissolves all the other metal 43 in the water 31, and carbon dioxide from the bottom of the other metal 43 inside the water tank 29. The carbon dioxide bubbling device 17 for bubbling 21 is assembled.

  The remaining metal deposition and collection electrolytic cell 14 for the next purpose is connected to the water tank 29 of the other metal reionization electrolytic cell 13 by a pipe 34, and the next target metal (by a pump (not shown)) ( Zinc (Zn) 44 and a water tank 33 in which water 32 in which a plurality of metal ions, which are ions of the remaining metal (iron Fe, etc.) 45 are dissolved, is introduced inside, and the next target metal and the remaining metal ions are dissolved. Another anode plate 35 and cathode plate 36 that are placed in the water 32 apart from each other, yet another cathode plate 37 that allows the cathode plate 36 to be replaced, and its remaining metal other than the next target metal 44 A direct current is passed between the other anode plate 35 and the cathode plate 36 with the strength of the voltage and current for depositing 45, and after deposition of the remaining metal 45, the other cathode plate 36 is replaced with the further cathode plate 37. Tori Assembled in the DC power supply 38 which communicates between the following purposes anode plate 35 and the voltage and current to deposit metal 44 intensity direct current of the alternative in that yet another cathode plate 37 in place.

Next, the operation of the metal separation and collection apparatus 10 will be described.
First, when a voltage is applied to an assembly 41 of a large number of used aluminum alloy parts 40 placed in the water 20 of the water tank 15 of the metal ionization electrolytic cell 11, electrons (e ⁻ ) are converted into a in FIG. Flows in the direction of the arrow. That is, electrons are deprived from the aggregate 41 of the aluminum alloy part 40, and all of the metals constituting the aggregate 41 become positive ions and dissolve into the water 20. Since a high voltage is applied to the aggregate 41 of the aluminum alloy part 40, all of the metal of the aggregate 41 of the aluminum alloy part 40 is quickly dissolved into the water 20 as positive ions.
As shown in FIG. 1a, when carbon dioxide (CO ₂ ) 21 is bubbled, the carbon dioxide (CO ₂ ) 21 is
_{CO 2 + H 2 O H 2} CO 3 H + + HCO 3 - 2H + + CO 3 2-
And hydrogen ions (H ⁺ ) increase in the water 20. If the ionization tendency is stronger than that of hydrogen, that is, if the property of being more positive in the state of positive ions is more stable, giving electrons to hydrogen ions (H ⁺ ), that is, For example, if zinc (Zn) is deprived of electrons by hydrogen ions (H ⁺ ), Zn → Zn ²⁺ + 2e ⁻ , 2H ⁺ + 2e ⁻ → H ₂ ↑, collectively Zn + 2H ⁺ → Zn ²⁺ + H ₂ ↑ As it reacts, the metal becomes positive ions and dissolves in the water 20.
By such action, the metal (aluminum Al, zinc Zn, iron Fe, etc.) constituting the aggregate 41 of the aluminum alloy part 40 becomes positive ions and quickly dissolves in the water 20.

Next, as shown in FIGS. 1a and 1b, water 22, in which the metal, that is, aluminum Al, zinc Zn, iron Fe and the like is dissolved as positive ions, is pumped through the pipe 24 to the metal ionization electrolytic cell. 11 is sent from the water tank 15 to the water tank 23 of the other metal deposition / collection electrolytic tank 12 for metal deposition.
The order of the strength of ionization tendency of the metal constituting the aluminum alloy component 40 is aluminum Al> zinc Zn> iron Fe>.
Aluminum (Al) has the strongest ionization tendency among these metals. In other words, it is most stable when it exists as positive ions. In order to give an electron by applying a voltage to return such a metal to a state other than the original ion, a higher voltage is required as compared with other metals. That is, it is higher than the voltage required for electrolyzing and depositing aluminum (Al).

In the other metal deposition / collection electrolytic cell 12 for the purpose of metal deposition, the target metal (aluminum Al) 42 is not deposited, but other metals (zinc Zn, iron Fe, etc.) 43 are deposited, ie, zinc (Zn ) Is applied.
In the other metal deposition / collection electrolytic cell 12 for the purpose of metal deposition, a direct current is applied with a voltage and current intensity for depositing other metals (zinc Zn, iron Fe, etc.) 43 other than the target metal (aluminum Al) 42. To the anode plate 25 and the cathode plate 26.
Since metals other than aluminum (Al) and zinc (Zn) have a lower ionization tendency than aluminum (Al) and zinc (Zn), the cathode plate 26 has a metal other than aluminum (Al) (zinc Zn, iron Fe, etc.). ) Precipitates. At this time, carbon dioxide (CO ₂ ) 21 is not bubbled because of metal deposition.
Then, when the precipitation of zinc (Zn), iron (Fe), etc. other than aluminum (Al) is gradually completed in the water 20 of the water tank 23 of the other metal deposition / collection electrolytic cell 12 for metal deposition. The cathode plate 26 is replaced with another cathode plate 27, and the taken-out cathode plate 26 is transferred into the water 31 of the water tank 29 of the other metal reionization electrolytic cell 13 as shown in FIG.

After that, as shown in FIG. 1c, a voltage for depositing the target metal (aluminum Al) 42 is applied. Since only the aluminum (Al) is dissolved in the water 22 of the water tank 23, the direct current is applied to the anode plate 25 by the strength of the voltage and current for depositing the target metal 42, aluminum (Al). Then, through the other cathode plate 27, only aluminum (Al) is deposited on the other cathode plate 27, and thus aluminum (Al) is obtained as a single body. At this time, since it is metal deposition, carbon dioxide (CO ₂ ) 21 does not bubble.

On the other hand, in the other metal reionization electrolytic cell 13, as shown in FIG. 1 d, other metals other than the target metal (aluminum Al) 42 in the other metal deposition / collection electrolytic cell 12 for the purpose of metal deposition. The cathode plate 26 on which (Zn Zn, iron Fe, etc.) 43 is deposited is placed in the water 31 of the water tank 29 and electrically connected to the positive electrode of the DC power source 30. Then, in the same manner as the operation performed in the metal ionization electrolytic cell 11, a high voltage that dissolves all of the other metals (zinc Zn, iron Fe, etc.) 43 is applied to the other metals 43, and 21 of carbon dioxide (CO ₂ ) is applied. All the other metals 43 deposited on the cathode plate 26 while bubbling are dissolved into the water 31 as positive ions.

Next, as shown in FIG. 1 d and e, water 32 in which other metals 43, that is, zinc Zn, iron Fe, etc. are dissolved as positive ions is passed through a pipe 34 by a pump (not shown). From the water tank 29 of the metal reionization electrolytic cell 13, the remaining metal deposition is used and the water is fed to the water tank 33 of the next metal deposition collecting electrolytic cell 14. Here, since the next target metal 44 to be collected as a single metal is zinc (Zn), the remaining metal (iron Fe, etc.) 45 other than the next target metal (zinc Zn) 44 is deposited. The direct current is passed to the anode plate 35 and the cathode plate 36 with the strength of the voltage and current to be generated. In this case, the zinc (Zn) 44 is not deposited, but a voltage at which 45 such as iron (Fe) is deposited is applied. Since metals other than zinc (Zn) and iron (Fe) have a lower ionization tendency than zinc (Zn) and iron (Fe), the cathode plate 36 has a remaining metal other than zinc (Zn) (such as iron Fe). ) 45 is deposited. Also at this time, carbon dioxide (CO ₂ ) 21 does not bubble due to metal deposition.

  Then, only zinc (Zn) is gradually dissolved in the water 32 of the water tank 33, and the remaining metal (iron Fe, etc.) 45 other than the next target metal (zinc Zn) 44 is precipitated. Is completed. Subsequently, the cathode plate 36 is taken out and replaced with another cathode plate 37 as shown in FIG. When the remaining metal 45 such as iron (Fe) is used as a single metal, or when the iron (Fe) is used with a further increased purity, the cathode plate on which the remaining metal 45 is deposited. 36 is obtained by sequentially treating in an ionization electrolytic cell, a precipitation electrolytic cell, and a precipitation collection electrolytic cell as described above.

In the electrolytic cell 14 where the cathode plate 36 on which the remaining metal 45 is deposited is replaced with another cathode plate 37, the voltage at which the next target metal (zinc Zn) 44 is deposited is It is placed between the anode plate 35 and another cathode plate 37 thereof. Since only zinc (Zn) 44 is dissolved in the water 32 of the water tank 33, the direct current is applied to the anode plate by the voltage and current strength for precipitating the zinc (Zn) of the next target metal 44. Zinc (Zn) 44 is deposited on the further cathode plate 37 through 35 and its further cathode plate 37 to obtain zinc (Zn) 44 as a single body. Also at this time, carbon dioxide (CO ₂ ) 21 does not bubble due to metal deposition.

  As described above, the metal can be obtained from the aggregate 41 of the aluminum alloy component 40 as a simple substance of aluminum (Al), zinc (Zn), and iron (Fe). Of course, when there are a large number of single metals to be separated and collected, in the method 10, the metal ionization step, the metal precipitation step, and the metal precipitation collection step may be repeated continuously. The metal reionization electrolytic cell and the metal precipitation / collection electrolytic cell, or the metal reionization electrolytic cell, the metal deposition electrolytic cell, and the metal deposition / collection electrolytic cell may be repeated continuously.

  Therefore, in this metal separation and collection method and apparatus 10, an aggregate 41 of a large number of used aluminum alloy parts 40 is immersed in water 20 in which solute is not dissolved, and first, the aluminum alloy is bubbled under carbon dioxide 21 bubbling. A high voltage is applied to the component 40 to dissolve all the metal of the aluminum alloy component 40 into the water 20 to form ions, and then deposit other metals other than the target metal (aluminum) 42, and then The aluminum 42 is collected by precipitation, while the precipitated zinc, iron 43 is immersed in another water 31 in which the solute is not dissolved, and the zinc 42, iron, etc. Applying a voltage, all of the zinc, iron, etc. 43 are dissolved in the other water 31 to form ions again, and the remaining metal (iron, etc.) 45 is deposited, In addition, since the next target metal (zinc) 44 is deposited and collected, the metal simple substance can be electrically separated from the alloy or two or more kinds of integrated metals, and can be collected. Environmental pollution is avoided, inspection and repair are simple and easy, maintenance and management including water disposal becomes easy and economical, and in particular, the equipment can be embodied in a simple structure. It is easy and easy to maintain and economical, and even when a large number of metals are separated and collected, ionization, deposition, reionization, and deposition are repeated sequentially according to the number of metals. Makes it possible to separate and collect single metal efficiently and economically, and to separate and collect metal as a pure single body, and furthermore, metal recycling is safe and economically possible and recyclable. Electrical It becomes more economical use of energy, resulting useful become practical.

  As will be apparent from the specific embodiments of the present invention described above with reference to the drawings, for those of ordinary skill in the art to which the present invention pertains, It is easily embodied in another embodiment that derives from the nature and the nature of the invention and is objectively recognized as having them inherent. Of course, the contents of the present invention correspond to the problem of the invention (be recommend with) and are essential for the establishment of the invention.

  As can be understood from the above, the method for separating and collecting a metal of the present invention involves immersing an alloy or two or more integrated metals in water, and then immersing the alloy or two or more integrated metals in the water. Subjecting the alloy or the two or more metals to a high voltage that dissolves all of the alloy or the two or more metals in the water while bubbling carbon dioxide from under the metal; and The metal ionization process in which the alloy or two or more integrated metals are dissolved in the water to form ions, and the water in which the metal ions are dissolved are transferred separately, and the anode and the cathode are separated from the transferred water. Other metal deposition steps in which direct current is continuously passed through the electrodes for an appropriate period of time with the strength of voltage and current for depositing other metals other than the target metal, and other metals are deposited on the cathode; Other The cathode on which the metal is deposited is replaced with another cathode, and a direct current is continuously passed through the electrodes at an appropriate voltage and current intensity to deposit the target metal, and the target metal is connected to the other cathode. Or the water in which the target metal is dissolved is further transferred, and another anode and cathode are placed in the water separately from each other, and the direct current is applied with the strength of voltage and current for depositing the target metal. A metal sampling step for continuously collecting the target metal on the other cathode and collecting the target metal by depositing the target metal on the other cathode. A positive electrode is electrically connected to a tank filled with water and containing two or more kinds of integrated metals in the water, an alloy thereof or two or more kinds of integrated metals, and the water In its alloy or integrated A direct current power source that applies a high voltage to the alloy or two or more integrated metals to melt all of the two or more selected metals, and the alloy or two or more integrated metals within the aquarium A metal ionization electrolytic cell assembled with a carbon dioxide bubbling device that bubbles carbon dioxide from below, and a plurality of metal ions that are connected to the water tank of the metal ionization electrolytic cell by piping and are ions of the target metal and other metals An aquarium for introducing and filling molten water into the interior thereof, an anode and a cathode which are placed apart from each other in water of the target metal and other metal ions, another cathode which allows the cathode to be replaced, and A direct current is passed through the anode and cathode at a voltage and current intensity that can deposit other metals than the target metal, and the cathode is separated after the other metals are deposited. It includes a metal deposition and collection cell for other purpose of metal deposition that is assembled with a direct current power source that leads the anode and another cathode to the direct current with the strength and voltage to deposit the target metal. In the method and apparatus for separating and collecting metal according to the present invention, two or more kinds of alloys or integrated metals are immersed in water in which the solute is not dissolved, and the alloys or integrated are first integrated under bubbling of carbon dioxide. Applying a high voltage to two or more metals to dissolve the alloy or all of the two or more integrated metals into the water to form ions, and then deposit a metal other than the target metal. Then, the target metal is deposited and collected, while the deposited other metal is immersed in another water in which the solute is not dissolved, and a high voltage is applied to the other metal under the bubbling of carbon dioxide. Other All the metal is dissolved in the other water to form ions again, the remaining metal is deposited, and then the next target metal is deposited and collected. It can be separated from the metal electrically and can be collected, and environmental pollution is avoided by leakage and discharge of water, inspection and repair are easy and easy, and maintenance and management including water disposal is easy and economical. In particular, when the device can be embodied in a simple structure, its inspection and repair is simple and easy, maintenance becomes easy and economical, and there are many pieces of metal to be separated and collected. In addition, by repeating ionization, precipitation, reionization, and precipitation sequentially according to the number of single metals, it becomes possible to separate and collect single metals efficiently and economically, and the metals can be separated and collected as high purity single metals. Become Further Te, metal recycling is safe and economically feasible, become more economical utilization of renewable electrical energy, as a result, it is useful and practical for metal separated off.

DESCRIPTION OF SYMBOLS 10 Metal separation / collection method and apparatus 11 Metal ionization electrolysis tank 12 Other metal collection electrolysis tanks for the purpose of metal precipitation 13 Other metal reionization electrolysis tanks 14 The remaining metal precipitation for the purpose of metal precipitation collection electrolysis tanks 15 16 DC power supply 17 Carbon dioxide bubbling device 18 Bubbling pipe 19 Carbon dioxide supply source 20 Water 21 Carbon dioxide 22 Water in which a plurality of metal ions are dissolved 23 Water tank 24 Piping 25 Anode plate 26 Cathode plate 27 Another cathode plate 28 DC power supply 29 Water tank 30 DC power supply 31 Water / other water 32 Water in which a plurality of metal ions are dissolved / water in which other metal is dissolved 33 Water tank 34 Piping 35 Another anode plate 36 Another cathode plate 37 Still another cathode plate 38 DC power source 40 Alloy or integrated two or more metals / multiple used aluminum alloy parts 41 Assembly 42 Target metal / aluminum (Al)
43 Other metals / zinc (Zn), iron (Fe), etc. 44 Next purpose metal / zinc (Zn)
45 Remaining metal / iron (Fe), etc. 46 Valve 47 Valve 48 Valve 49 Valve

Claims (4)

  An alloy or two or more integrated metals are immersed in water, and the alloy or two or more integrated metals are bubbled into the water while bubbling carbon dioxide from under the alloy or the two or more integrated metals. A high voltage that dissolves all of the two or more integrated metals is applied to the alloy or the two or more integrated metals, and the alloy or the two or more integrated metals are dissolved in the water. Separate the metal ionization process that turns into ions and the water in which the metal ions are dissolved, put the anode and cathode into the transferred water, and separate the voltage and current to deposit other metals than the target metal. The other metal deposition process in which a direct current is passed through the electrodes for a certain period of time to deposit other metals on the cathode, and the cathode on which the other metals are deposited is replaced with another cathode, and the target metal The The direct current is continuously passed through the two electrodes at an appropriate voltage and current intensity for an appropriate period of time, and the target metal is deposited on the other cathode, or water in which the target metal is dissolved is further separated. And place another anode and cathode apart from each other in the water, and continuously pass a direct current through the two electrodes for an appropriate period of time at a voltage and current intensity that causes the target metal to be deposited. A method for separating and collecting a metal including a target metal collecting step of depositing and collecting the target metal.   An alloy or two or more integrated metals are immersed in water, and the alloy or two or more integrated metals are bubbled into the water while bubbling carbon dioxide from under the alloy or the two or more integrated metals. A high voltage that dissolves all of the two or more integrated metals is applied to the alloy or the two or more integrated metals, and the alloy or the two or more integrated metals are dissolved in the water. Separate the metal ionization process that turns into ions and the water in which the metal ions are dissolved, put the anode and cathode into the transferred water, and separate the voltage and current to deposit other metals than the target metal. The other metal deposition process in which a direct current is passed through the electrodes for a certain period of time to deposit other metals on the cathode, and the cathode on which the other metals are deposited is replaced with another cathode, and the target metal The The direct current is continuously passed through the two electrodes at an appropriate voltage and current intensity for an appropriate period of time, and the target metal is deposited on the other cathode, or water in which the target metal is dissolved is further separated. And place another anode and cathode apart from each other in the water, and continuously pass a direct current through the two electrodes for an appropriate period of time at a voltage and current intensity that causes the target metal to be deposited. The target metal extraction process for precipitating and collecting the target metal and the cathode on which the other metal is deposited are immersed in another water, and carbon dioxide is bubbled from under the cathode on which the other metal is deposited in the water. Applying a high voltage to the other metal to dissolve all of the other metals in the water, and another metal reionization step to dissolve the other metal into the water and turn it into ions, and from the other water That Remove the metal-dissolved cathode, place the anode and cathode apart in the separate water, and deposit the remaining metal other than the next target metal without bubbling carbon dioxide. The current is continuously passed through the electrodes for an appropriate period of time with the strength of the current, the remaining metal deposition step for depositing the remaining metal on the cathode, and the cathode on which the remaining metal is deposited is replaced with another cathode, The DC is continuously passed through the electrodes for an appropriate time at the voltage and current intensity for depositing the next target metal, and the next target metal is deposited on the other cathode, or the next Transfer the water in which the target metal ion is dissolved further, put another anode and cathode apart from each other in the water, and apply a direct current to both poles with the strength of voltage and current to deposit the next target metal. Continue through time, and And a next metal sampling step for depositing and collecting the next target metal on the cathode.   Electrically connecting the positive electrode to a water tank filled with water and containing two or more kinds of integrated metals in the water, an alloy thereof or two or more kinds of integrated metals, A direct current power source that applies a high voltage to the alloy or two or more integrated metals to melt all of the alloy or two or more integrated metals in the water, and the alloy within the aquarium Alternatively, a metal ionization electrolytic cell assembled by a carbon dioxide bubbling device for bubbling carbon dioxide from below two or more integrated metals, and a pipe connected to the water tank of the metal ionization electrolytic cell, the target metal and others A water tank that guides and fills water in which a plurality of metal ions are dissolved, anodes that are separated from each other in water in which the target metal and other metal ions are dissolved, and A direct current is passed through the anode and cathode at a voltage and current intensity that deposits another metal other than the target metal, and after the deposition of the other metal A metal deposition and collection electrolytic cell for other purposes of metal deposition that can be assembled with a direct current power source that exchanges a direct current to the anode and another cathode with the strength of voltage and current to deposit the target metal by replacing the cathode with the other cathode And a metal separation and collection device.   Electrically connecting the positive electrode to a water tank filled with water and containing two or more kinds of integrated metals in the water, an alloy thereof or two or more kinds of integrated metals, A direct current power source that applies a high voltage to the alloy or two or more integrated metals to melt all of the alloy or two or more integrated metals in the water, and the alloy within the aquarium Alternatively, a metal ionization electrolytic cell assembled by a carbon dioxide bubbling device for bubbling carbon dioxide from below two or more integrated metals, and a pipe connected to the water tank of the metal ionization electrolytic cell, the target metal and others A water tank that guides and fills water in which a plurality of metal ions are dissolved, anodes that are separated from each other in water in which the target metal and other metal ions are dissolved, and A direct current is passed through the anode and cathode at a voltage and current intensity that deposits another metal other than the target metal, and after the deposition of the other metal A metal deposition and collection electrolytic cell for other purposes of metal deposition that can be assembled with a direct current power source that exchanges a direct current to the anode and another cathode with the strength of voltage and current to deposit the target metal by replacing the cathode with the other cathode The water tank is filled with water and the cathode in which other metals are deposited is placed in the water. The cathode is electrically connected to the cathode in which other metals are deposited, and all other metals are dissolved in the water. DC power supply that applies high voltage to other metals, and other metal reiod assembled in a carbon dioxide bubbling device that bubbling carbon dioxide from under other metals inside the tank A water tank that is connected to the water tank of the other metal reionization electrolytic tank by piping and that is filled with a water in which a plurality of metal ions that are the next target metal and the remaining metal ions are dissolved, An anode and a cathode that are separated from each other in water in which the next target metal and the remaining metal ions are dissolved, another cathode that makes the cathode replaceable, and the remaining metal other than the next target metal The direct current is passed through the anode and cathode at the strength of the voltage and current for depositing, and after deposition of the remaining metal, the cathode is replaced with another cathode and the voltage and current strength at which the next target metal is deposited. A metal separating and collecting apparatus including a remaining metal depositing and next purpose metal depositing and collecting electrolytic cell which is assembled by a DC power source which passes a direct current to its anode and another cathode.

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