JPS5268860A - Method for treating waste liquid of nitric secondary cerium ammonium - Google Patents

Method for treating waste liquid of nitric secondary cerium ammonium

Info

Publication number
JPS5268860A
JPS5268860A JP14500275A JP14500275A JPS5268860A JP S5268860 A JPS5268860 A JP S5268860A JP 14500275 A JP14500275 A JP 14500275A JP 14500275 A JP14500275 A JP 14500275A JP S5268860 A JPS5268860 A JP S5268860A
Authority
JP
Japan
Prior art keywords
nitric
waste liquid
treating waste
cerium ammonium
secondary cerium
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.)
Pending
Application number
JP14500275A
Other languages
Japanese (ja)
Inventor
Nori Kamata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14500275A priority Critical patent/JPS5268860A/en
Publication of JPS5268860A publication Critical patent/JPS5268860A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To co-precipitate and remove trivalent Cr, Ni, Ce as hydroxide, by reducing hexavalent Cr to trivalent Cr, adding NaHSO3 and then Ca(OH)2, to the waste solution of (NH4)2 Ce(NO3)6, used for the etching of Ni-Cr steel.
COPYRIGHT: (C)1977,JPO&Japio
JP14500275A 1975-12-08 1975-12-08 Method for treating waste liquid of nitric secondary cerium ammonium Pending JPS5268860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14500275A JPS5268860A (en) 1975-12-08 1975-12-08 Method for treating waste liquid of nitric secondary cerium ammonium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14500275A JPS5268860A (en) 1975-12-08 1975-12-08 Method for treating waste liquid of nitric secondary cerium ammonium

Publications (1)

Publication Number Publication Date
JPS5268860A true JPS5268860A (en) 1977-06-08

Family

ID=15375168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14500275A Pending JPS5268860A (en) 1975-12-08 1975-12-08 Method for treating waste liquid of nitric secondary cerium ammonium

Country Status (1)

Country Link
JP (1) JPS5268860A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067840A1 (en) * 1980-12-22 1982-12-29 Eastman Kodak Co Method of fabricating a solid state electrooptical device having a transparent metal oxide electrode.
US4517164A (en) * 1984-05-24 1985-05-14 Olin Corporation Purification of alkali metal nitrates
US6846416B2 (en) 2000-07-31 2005-01-25 Ngk Spark Plug Co., Ltd. Process for treating chromate waste liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067840A1 (en) * 1980-12-22 1982-12-29 Eastman Kodak Co Method of fabricating a solid state electrooptical device having a transparent metal oxide electrode.
US4517164A (en) * 1984-05-24 1985-05-14 Olin Corporation Purification of alkali metal nitrates
US6846416B2 (en) 2000-07-31 2005-01-25 Ngk Spark Plug Co., Ltd. Process for treating chromate waste liquid

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