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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: 2014-03-05
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
  • Precious metal recovery device and recovery method
  • 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 precious metal recovery device for recovering precious metals from waste fluids containing precious metals using an electrolytic method that can allow uniform precious metals to be deposited stably by suppressing the defect of the short circuit because of the variability in the amount of deposition or deposited particles caused by current abnormality or because of abnormal deposition of precious metals caused by current concentration, and its recovery method. In a precious metal recovery device including a cylindrical expander cathode disposed along an inner circumference of a metallic container that constitutes an electrolytic bath, and a cylindrical expander anode disposed along an outer circumference of the pipe-shaped anode, an upper section of the expander cathode is connected and secured to an upper shoulder section of the metallic container in an inverted L-shape in cross section, a lower section of the expander cathode is connected and secured to a bottom section of the metallic container, and both ends of the expander anode are connected and secured to the pipe-shaped anode in a U-shape in 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 Patents(China)
IPC IPC(8): C25C7/00C25C1/20
CPCC25C7/00C25C1/20
Inventor 鲭江庆阿部真司鹫尾孝行
Owner TANAKA PRECIOUS METAL IND
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