Method for manufacturing electrode module for recovery of metal ions, electrode module for recovery of metal ions, and apparatus for recovery of metal ions including the same

Patent metadata

Field	Value
Publication number	US-9057139-B2
Application number	US-201213640940-A
Country	US
Kind code	B2
Filing date	Apr 13, 2012
Priority date	Jul 26, 2011
Publication date	Jun 16, 2015
Grant date	Jun 16, 2015

Abstract

The present invention relates to a method for manufacturing an electrode module for recovery of metal ions, an electrode module for recovery of metal ions, and an apparatus for recovery of metal ions including the same. The present invention provides a method for manufacturing an electrode module for recovery of metal ions, the method including the steps of: a) preparing a first electrode part and a second electrode part for electrically adsorbing or desorbing metal ions contained in a liquid; and b) interposing an insulating layer, through which the liquid passes, between the first electrode part and the second electrode part, an electrode module for recovery of metal ions manufactured by the method, and an apparatus for recovery of metal ions including the same. According to the present invention, it is possible to significantly reduce the time required for the adsorption and desorption of ions when specific valuable metal ions are recovered from an aqueous solution in which various valuable metal ions are dissolved.

First claim

What is claimed is:

1. An electrode module for recovery of metal ions, the electrode module comprising:
a first electrode part comprising a current collector layer to which electricity is applied, a porous carbon electrode layer coated on the current collector layer, and an adsorbent layer coated on the porous carbon electrode layer;
a second electrode part comprising a current collector layer to which electricity is applied, a porous carbon electrode layer coated on the current collector layer, and an anion-exchange membrane attached to the porous carbon electrode layer; and
an insulating layer interposed between the first electrode part and the second electrode part to electrically insulate the first electrode part and the second electrode part and to allow a liquid to pass therethrough,
wherein the adsorbent layer and the anion-exchange layer are arranged to face each other.

2. The electrode module of claim 1 , wherein the first electrode part comprises a current collector layer, to which electricity is applied, and an adsorbent layer comprising active carbon, carbon aerogel, or a mixture thereof and coated on the current collector layer,
wherein the second electrode part comprises a current collector layer, to which electricity is applied, a porous carbon electrode layer coated on the current collector layer, and an anion-exchange membrane attached to the porous carbon electrode layer, and
wherein the adsorbent layer and the anion-exchange layer are arranged to face each other.

3. The electrode module of claim 1 , wherein the electrode module has the form of a laminate by laminating a plurality of unit modules or has the form of a cylinder by winding one or more unit modules.

4. An apparatus for recovery of metal ions, the apparatus comprising:
an electrode module for recovery of metal ions which comprises a first electrode part including a current collector layer to which electricity is applied, a porous carbon electrode layer coated on the current collector layer, and an adsorbent layer coated on the porous carbon electrode layer, a second electrode part including a current collector layer to which electricity is applied, a porous carbon electrode layer coated on the current collector layer, and an anion-exchange membrane attached to the porous carbon electrode layer, and an insulating layer interposed between the first electrode part and the second electrode part to insulate the first electrode part and the second electrode part;
a power supply which supplies electricity to each of the current collector layers; and
a metering pump which feeds a liquid containing metal ions or deionized water into the electrode module for recovery of metal ions.

Assignees

• Chung Kang-Sup
• Ryu Tae Gong
• Ryu Jae Chun
• Korea Inst Geoscience & Minera

Inventors

• Chung Kang-Sup
• Ryu Tae Gong
• Ryu Jae Chun

Classifications

• B05D7/584

  at least some layers being let to dry, at least partially, before applying the next layer (B05D7/587 takes precedence) · CPC title

• C02F2201/46115

  Electrolytic cell with membranes or diaphragms · CPC title

• C02F2101/20

  Heavy metals or heavy metal compounds · CPC title

• C25C7/02 Primary

  Electrodes (consumable anodes for the refining the metals C25C1/00 - C25C5/00); Connections thereof · CPC title

• B05D1/28

  performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers · CPC title