JPS5268860A - Method for treating waste liquid of nitric secondary cerium ammonium - Google Patents
Method for treating waste liquid of nitric secondary cerium ammoniumInfo
- 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
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
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)
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 |
-
1975
- 1975-12-08 JP JP14500275A patent/JPS5268860A/en active Pending
Cited By (3)
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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