Apparatus For Recovery Metal

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...

AI Technical Summary

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 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.

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, which increases the cost.

However, the cost of preparing the negative plate is high.

Besides, as 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.

However, it is necessary to prepare a mechanism for taking the copper chip out of the basket, which increases the cost of the apparatus.

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