Apparatus For Recovery Metal

Inactive Publication Date: 2008-06-19
FURUKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0020]According to the present invention, as 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

Problems solved by technology

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.
However, cooling of the solution requires much power, whi

Method used

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Embodiment Construction

[0045]With reference to the drawings, embodiments of the present invention will be described in detail below.

[0046]FIG. 1 illustrates a structure of a metal recovery apparatus according to an embodiment of the present invention.

[0047]In FIG. 1, In an electrolysis vessel 1 into which acid pickling waste water R is inject, 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.

[0048]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, 3A and 3B.

[0049]The metal recovery board 2 illustrated in FIG. 2 has a circular-shaped conductive plate 2a of corrosion-resistant metal and an insulating film 2b of, for example, 0.1 mm to 10 mm in thickness formed on each surface of conductive plate 2a. Besides, the insulating film 2b on at leas...

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Abstract

An apparatus for recovering a metal, which comprises a metal-recovering board (2) having an electrodeposition surface (2a, 2t) for the attachment of a metal component (R) precipitated from a solution and an insulating material (2b) formed around a pattern of the electrodeposition surface (2a, 2t). The metal-recovering board (2) is immersed in a metal-containing solution in an electrolytic treatment vessel (1), and thereby the metal in the solution is selectively precipitated on the electrodeposition surface (2a, 2t) and is converted to a bulk. The resultant metal bulk is scraped together for recovery with a blade (6) in a form as it is. The above apparatus for recovering a metal can be suitably used for recovering a metal in a solution in a state allowing easy reuse with good efficiency.

Description

TECHNICAL FIELD[0001]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.BACKGROUND ART[0002]Usually, in producing a copper product or copper alloy product, 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.[0003]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.[0004]In view of this, developments have been made on the method and apparatus for recycling a sulfuric acid solution. The method for recovering a co...

Claims

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Application Information

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IPC IPC(8): C25C1/12
CPCC25C7/007C25C7/08C25C7/02
Inventor IWAMA, HISASHITANAKA, HIROAKIKIMURA, HARUNOBUTANAKA, HITOSHIHIROTA, YUTAKA
Owner FURUKAWA ELECTRIC CO LTD
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