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Precious metal recovery device and recovery method

A precious metal recovery, metal technology, applied in photography technology, instruments, photography auxiliary technology and other directions, can solve problems such as short circuit at the bottom of the container, and achieve the effect of efficient recovery

Active Publication Date: 2013-03-06
TANAKA PRECIOUS METAL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the technology described in Patent Document 2, when the powdery precipitated precious metal is peeled off from the first cylinder and deposited on the bottom of the container, a short circuit may occur between the bottom of the container and the anode.

Method used

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  • Precious metal recovery device and recovery method

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Embodiment

[0046] Below, combine figure 1 and figure 2 , one embodiment of the precious metal recovery apparatus of the present invention will be described. Along the inner circumference of a cylindrical metal container 10 (size: inner diameter 50mm, height 700mm) as an electrolytic cell, the first layer of cylindrical expanded cathode 12 (size: diameter 140mm, plate thickness 1mm, length 685mm, diamond-shaped hole The length of the diagonal line is 6 (major axis) × 3 (short axis) mm), and the second layer of cylindrical expanded cathode 12 is arranged along the inner circumference of the metal container 10 (size: diameter 130mm, plate thickness 1mm, length 685mm , The length of the diagonal of the rhombus hole is 6 (long axis) × 3 (short axis) mm). On the other hand, a tubular anode 11 (dimensions: outer diameter 22 mm, length 690 mm, plate thickness 2 mm) is inserted into the center of the metal container 10, and a cylindrical expanded anode 13 (dimensions: outer diameter 38 mm) is...

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Abstract

Provided is a recovery device and recovery method for recovering precious metals from waste liquid that contains precious metals using an electrolytic method. The disclosed recovery device and recovery method curbs the dispersion of precipitated particles and the amount of precipitate due to current anomalies, curbs short circuit failures due to anomalous deposition of precious metals resulting from electric-current constriction, and has even and stable deposition of precious metals. The precious metal recovery device is provided with a cylindrical expander cathode that is arranged along the inner circumference of a cylindrical metal container that forms an electrolytic cell and a cylindrical expander anode that is arranged along the exterior circumference of a pipe shaped anode. The upper part of the expander cathode is fixed to the upper shoulder of the metal container with a reverse L-shaped cross-section, the lower part of the expander cathode is fixed to the bottom of the metal container and both ends of the expander anode are fixed to the pipe shaped cathode with a C-shaped cross section.

Description

technical field [0001] The invention relates to a recovery device and a recovery method, which are used for recovering precious metals from waste liquid containing precious metals by electrolysis. Background technique [0002] For example, an electrolysis (reduction) method is generally used as a method for recovering precious metals remaining in various waste liquids called precious metal electrophoresis liquids. In the precious metal recovery device using the electrolysis method, the waste liquid is introduced into the electrolytic cell, the insoluble anode and the cathode are immersed in the waste liquid, and the metal ions in the waste liquid are reduced and precipitated by energizing. [0003] As one of the methods of precious metal recovery device, it has the function of using image 3 The precious metal recovery apparatus 2 of the cylindrical container 217 (electrolyzer) described (refer patent document 1). The recovery device 2 is composed of a cylindrical container...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C7/00C25C1/20
CPCC25C1/20C25C7/00
Inventor 鲭江庆阿部真司鹫尾孝行
Owner TANAKA PRECIOUS METAL IND
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