JPS5590423A - Recovery method for iron from etching waste liquor - Google Patents

Recovery method for iron from etching waste liquor

Info

Publication number
JPS5590423A
JPS5590423A JP16122278A JP16122278A JPS5590423A JP S5590423 A JPS5590423 A JP S5590423A JP 16122278 A JP16122278 A JP 16122278A JP 16122278 A JP16122278 A JP 16122278A JP S5590423 A JPS5590423 A JP S5590423A
Authority
JP
Japan
Prior art keywords
fecl
iron
hydrochloric acid
waste liquor
etching waste
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16122278A
Other languages
Japanese (ja)
Other versions
JPS6058177B2 (en
Inventor
Hisakazu Kojima
Hideki Kato
Kunihiko Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toagosei Co Ltd
Original Assignee
Toagosei Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toagosei Co Ltd filed Critical Toagosei Co Ltd
Priority to JP16122278A priority Critical patent/JPS6058177B2/en
Publication of JPS5590423A publication Critical patent/JPS5590423A/en
Publication of JPS6058177B2 publication Critical patent/JPS6058177B2/en
Expired legal-status Critical Current

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  • Physical Water Treatments (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: To recover a FeCl2 water solution with high concentration, of less impurities, efficiently by a method wherein FeCl3 and hydrochloric acid are extracted from a hydrochloric acid solution of a FeCl3 etching waste liquor by using trialkyl- phosphoric acid and water and iron are added to an extraction liquid.
CONSTITUTION: The concentration of hydrochloric acid is brought to approximate 1W2 normality by adding hydrochloric acid to a FeCl3 etching waste liquor containing a large quantity of iron and a small quantity of heavy metal components. FeCl3 and hydrochloric acid are shifted to an organic layer by extracting the solution with trialkyl-phosphoric acid such as tributyl phosphoric acid. When the organic layer is separated and water and iron are added to an extraction liquid separated, hydrochloric acid is reacted with iron and changed into FeCl2, and FeCl3 is also reduced to FeCl2. A FeCl2 water solution with high concentration, which impurities are little, can efficiently be recovered because heavy metal components are hardly extracted to the organic layer.
COPYRIGHT: (C)1980,JPO&Japio
JP16122278A 1978-12-28 1978-12-28 Method for recovering iron from etching waste liquid Expired JPS6058177B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16122278A JPS6058177B2 (en) 1978-12-28 1978-12-28 Method for recovering iron from etching waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16122278A JPS6058177B2 (en) 1978-12-28 1978-12-28 Method for recovering iron from etching waste liquid

Publications (2)

Publication Number Publication Date
JPS5590423A true JPS5590423A (en) 1980-07-09
JPS6058177B2 JPS6058177B2 (en) 1985-12-18

Family

ID=15730936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16122278A Expired JPS6058177B2 (en) 1978-12-28 1978-12-28 Method for recovering iron from etching waste liquid

Country Status (1)

Country Link
JP (1) JPS6058177B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59121123A (en) * 1982-12-24 1984-07-13 Toppan Printing Co Ltd Reclamation of solution of ferric chloride
JPS59196793A (en) * 1983-04-20 1984-11-08 Nishimura Watanabe Chiyuushiyutsu Kenkyusho:Kk Recovery of liquid etchant
WO2005120675A1 (en) * 2004-06-08 2005-12-22 Daeil Development Co., Ltd. Method for treating of etching acid waste containing phosphoric acid, acetic acid and nitric acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0319986Y2 (en) * 1985-11-05 1991-04-26

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59121123A (en) * 1982-12-24 1984-07-13 Toppan Printing Co Ltd Reclamation of solution of ferric chloride
JPS6144814B2 (en) * 1982-12-24 1986-10-04 Totsupan Insatsu Kk
JPS59196793A (en) * 1983-04-20 1984-11-08 Nishimura Watanabe Chiyuushiyutsu Kenkyusho:Kk Recovery of liquid etchant
JPS637115B2 (en) * 1983-04-20 1988-02-15 Nishimura Watanabe Chushutsu Kenkyusho Kk
WO2005120675A1 (en) * 2004-06-08 2005-12-22 Daeil Development Co., Ltd. Method for treating of etching acid waste containing phosphoric acid, acetic acid and nitric acid

Also Published As

Publication number Publication date
JPS6058177B2 (en) 1985-12-18

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