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JPS52145326A - Treatment of ammonium persulfate etching waste liquid - Google Patents

Treatment of ammonium persulfate etching waste liquid

Info

Publication number
JPS52145326A
JPS52145326A JP3453476A JP3453476A JPS52145326A JP S52145326 A JPS52145326 A JP S52145326A JP 3453476 A JP3453476 A JP 3453476A JP 3453476 A JP3453476 A JP 3453476A JP S52145326 A JPS52145326 A JP S52145326A
Authority
JP
Japan
Prior art keywords
waste liquid
treatment
ammonium persulfate
etching waste
persulfate etching
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
JP3453476A
Other languages
Japanese (ja)
Inventor
Toshiki Makino
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 JP3453476A priority Critical patent/JPS52145326A/en
Publication of JPS52145326A publication Critical patent/JPS52145326A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

PURPOSE: To recover Cu perfectly and to decrease Cu ion in waste liquid after the treatment to trace amount by the process, in which pH of ammonium persulfate etching waste liquid is made more than specified value, and the liquid is heated to decompose contained complex compound and to form Cu ion, and is cooled to precipitate the ion.
COPYRIGHT: (C)1977,JPO&Japio
JP3453476A 1976-03-31 1976-03-31 Treatment of ammonium persulfate etching waste liquid Pending JPS52145326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3453476A JPS52145326A (en) 1976-03-31 1976-03-31 Treatment of ammonium persulfate etching waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3453476A JPS52145326A (en) 1976-03-31 1976-03-31 Treatment of ammonium persulfate etching waste liquid

Publications (1)

Publication Number Publication Date
JPS52145326A true JPS52145326A (en) 1977-12-03

Family

ID=12416931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3453476A Pending JPS52145326A (en) 1976-03-31 1976-03-31 Treatment of ammonium persulfate etching waste liquid

Country Status (1)

Country Link
JP (1) JPS52145326A (en)

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