Title:
PLATING SOLUTION REGENERATING APPARATUS AND METHOD OF REGENERATING PLATING SOLUTION
Document Type and Number:
WIPO Patent Application WO/2008/023778
Kind Code:
A1
Abstract:
A plating solution regenerating apparatus for electroplating, comprising
a circulation tank, a sludge removing unit, a concentrating unit, an iron compound
crystallizing unit, an iron compound separating unit, an iron compound re-dissolving
unit, an iron ion removing unit, a piping started with the circulation tank and
sequentially connecting these units so that the recited order agrees with the
downstream direction, a piping connecting the iron ion removing unit to the circulation
tank, a piping connecting the iron compound separating unit to the circulation
tank, and a flow channel changing unit connected to the circulation tank and disposed
at at least one interspace selected from the group consisting of the interspace
between the sludge removing unit and the concentrating unit, the interspace
between the concentrating unit and the iron compound crystallizing unit and
the interspace between the iron compound crystallizing unit and the iron compound
separating unit. This apparatus is capable of removing sludge and iron contents
from the plating solution used in electroplating of steel strip to thereby regenerate
the plating solution. Further, by the use of this apparatus, continuous operation
of electroplating can be maintained without lowering of the utilization rate
of the sludge removing unit even when the operation of unit for iron contents removal
is halted.
Inventors:
SUZUKI, Kentaro (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chom, Chiyoda-ku Tokyo 11, 1000011, JP)
鈴木健太郎 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
YUKI, Kei (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chom, Chiyoda-ku Tokyo 11, 1000011, JP)
鈴木健太郎 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
YUKI, Kei (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chom, Chiyoda-ku Tokyo 11, 1000011, JP)
Application Number:
JP2007/066402
Publication Date:
February 28, 2008
Filing Date:
August 17, 2007
Export Citation:
Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 1000011, JP)
JFEスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 1000011, JP)
SUZUKI, Kentaro (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chom, Chiyoda-ku Tokyo 11, 1000011, JP)
鈴木健太郎 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
JFEスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 1000011, JP)
SUZUKI, Kentaro (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chom, Chiyoda-ku Tokyo 11, 1000011, JP)
鈴木健太郎 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
International Classes:
C25D21/18; C25D21/22; C25D21/00
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JFE TECHNO-RESEARCH CORPORATION7th Floor Yanagiya Building,1-10, Nihonbashi 2-chome, Chuo-ku, Tokyo 27, 1030027, JP)
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