JPS5256755A - Process for treating aqueous solution containing chromate ions which i ncludes insoluble heavy metal hydroxide - Google Patents

Process for treating aqueous solution containing chromate ions which i ncludes insoluble heavy metal hydroxide

Info

Publication number
JPS5256755A
JPS5256755A JP13342875A JP13342875A JPS5256755A JP S5256755 A JPS5256755 A JP S5256755A JP 13342875 A JP13342875 A JP 13342875A JP 13342875 A JP13342875 A JP 13342875A JP S5256755 A JPS5256755 A JP S5256755A
Authority
JP
Japan
Prior art keywords
aqueous solution
heavy metal
metal hydroxide
ncludes
solution containing
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
JP13342875A
Other languages
Japanese (ja)
Inventor
Yoshio Senoo
Kenichi Nakamura
Yoshiki Shimizu
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.)
Tokico Ltd
Original Assignee
Tokico 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 Tokico Ltd filed Critical Tokico Ltd
Priority to JP13342875A priority Critical patent/JPS5256755A/en
Publication of JPS5256755A publication Critical patent/JPS5256755A/en
Pending legal-status Critical Current

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  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

PURPOSE: To reduce all Cr+6 ions to Cr+3 ions, by reduction after addition of a m mineral acid to a chromic chromic ion containing aqueous solution which includes ae heavy metal hydroxide in an insoluble state.
COPYRIGHT: (C)1977,JPO&Japio
JP13342875A 1975-11-06 1975-11-06 Process for treating aqueous solution containing chromate ions which i ncludes insoluble heavy metal hydroxide Pending JPS5256755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13342875A JPS5256755A (en) 1975-11-06 1975-11-06 Process for treating aqueous solution containing chromate ions which i ncludes insoluble heavy metal hydroxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13342875A JPS5256755A (en) 1975-11-06 1975-11-06 Process for treating aqueous solution containing chromate ions which i ncludes insoluble heavy metal hydroxide

Publications (1)

Publication Number Publication Date
JPS5256755A true JPS5256755A (en) 1977-05-10

Family

ID=15104530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13342875A Pending JPS5256755A (en) 1975-11-06 1975-11-06 Process for treating aqueous solution containing chromate ions which i ncludes insoluble heavy metal hydroxide

Country Status (1)

Country Link
JP (1) JPS5256755A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63286600A (en) * 1987-05-07 1988-11-24 マシーネンファブリック　アンドリッツ　アクチエンゲゼルシャフト Electrolytic acid washing of stainless steel containing chromium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63286600A (en) * 1987-05-07 1988-11-24 マシーネンファブリック　アンドリッツ　アクチエンゲゼルシャフト Electrolytic acid washing of stainless steel containing chromium

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