ACIDIC LIQUID REGENERATION DEVICE AND REGENERATION METHOD

Title:

ACIDIC LIQUID REGENERATION DEVICE AND REGENERATION METHOD

Document Type and Number:

WIPO Patent Application WO/2020/013070

Kind Code:

A1

Abstract:

The present invention realizes a technique that makes it possible to reduce the amount of acidic liquid used for acidic liquid regeneration that includes adsorption agent regeneration. This regeneration device for a bath liquid regenerates an alumite bath liquid using a chelate resin to generate recovered sulfuric acid. Al3+ captured from the bath liquid by the chelate resin is replaced with hydrogen ions by an adsorption agent regeneration device. A part of the recovered sulfuric acid is used as the source of the hydrogen ion supply.

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Inventors:

HACHIKI YOSHINOBU (JP)
SUZUKI KOSE (JP)

Application Number:

PCT/JP2019/026616

Publication Date:

January 16, 2020

Filing Date:

July 04, 2019

Export Citation:

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Assignee:

SHINEI CHEMICAL IND CO LTD (JP)

International Classes:

C25D11/04; B01J45/00; B01J49/05; B01J49/50; C02F1/42

Foreign References:

JP2009061414A	2009-03-26
JP2009185338A	2009-08-20
JP2014173152A	2014-09-22
JPH01200992A	1989-08-14

Attorney, Agent or Firm:

HARAKENZO WORLD PATENT & TRADEMARK (JP)

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