KR930013218A - Regeneration of process sludge in electrolytes - Google Patents

Regeneration of process sludge in electrolytes Download PDF

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Publication number
KR930013218A
KR930013218A KR1019910024834A KR910024834A KR930013218A KR 930013218 A KR930013218 A KR 930013218A KR 1019910024834 A KR1019910024834 A KR 1019910024834A KR 910024834 A KR910024834 A KR 910024834A KR 930013218 A KR930013218 A KR 930013218A
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KR
South Korea
Prior art keywords
sludge
solution
amount
generated
fecl
Prior art date
Application number
KR1019910024834A
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Korean (ko)
Other versions
KR930010998B1 (en
Inventor
민선기
Original Assignee
정명식
포항종합제철 주식회사
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Application filed by 정명식, 포항종합제철 주식회사 filed Critical 정명식
Priority to KR1019910024834A priority Critical patent/KR930010998B1/en
Publication of KR930013218A publication Critical patent/KR930013218A/en
Application granted granted Critical
Publication of KR930010998B1 publication Critical patent/KR930010998B1/en

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/16—Regeneration of process solutions

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Treatment Of Sludge (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

내용 없음No content

Description

도금전해액에서 발생되는 슬러지의 재생방법Sludge Regeneration Method from Plating Electrolyte

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (1)

강판을 산세한후 도금전해액을 사용하여 전기도금하는 방법에 있어서, 상기 도금전해액에서 발생되는 슬러지중에 Fe2O3상태로 존재하는 Fe 및 ZnO 상태로 존재하는 Zn의 양 및 상기 산세처리공정에서 발생되는 폐산중의 HCl 농도를 측정하는 단계; 상기 단계에서 측정된 슬러지중의 Fe 및 Zn을 폐산중의 HCl에 의해 분해시키는데 필요한 폐산을 양을 구하는 단계; 상기 단계에서 구한 양만큼 폐산을 상기 슬러지에 첨가하고 80-90℃로 가열교반하여 FeCl3및 ZnCl2함유용액으로 만드는 단계, 상기 단계에서 만들어진 용액에 Fe 분말을 부원료로 투입하여 용액중의 Fe+3를 Fe+2로 환원시켜 FeCl2다량함유 용액으로 만드는 단계, 및 상기 용액을 여과하여 분해되지 않고 남은 슬러지 잔류물 및 미반응 Fe 분말을 제거하는 단계를 포함하여 구성되는 것을 특징으로 하는 도금전해액에서 발생되는 슬러지의 재생방법.In the method of electroplating using a plating electrolyte after pickling the steel sheet, the amount of Zn in the Fe and ZnO state in the Fe 2 O 3 state in the sludge generated in the plating electrolyte and generated in the pickling process Measuring the HCl concentration in the spent acid; Determining the amount of waste acid required to decompose Fe and Zn in the sludge measured by HCl in waste acid; With stirring added to the spent acid by the amount obtained in step in the sludge was heated to 80-90 ℃ FeCl 3 and ZnCl 2 in the step of making the phosphorus-containing solution, put into the Fe powder in the solution made from the above step with additives solution Fe + 3 to reduce the Fe + 2 to a FeCl 2 -rich solution, and filtering the solution to remove unresolved sludge residues and unreacted Fe powder. How to recover sludge generated from ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910024834A 1991-12-28 1991-12-28 Regeneration of process sludge in electrolytes KR930010998B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910024834A KR930010998B1 (en) 1991-12-28 1991-12-28 Regeneration of process sludge in electrolytes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024834A KR930010998B1 (en) 1991-12-28 1991-12-28 Regeneration of process sludge in electrolytes

Publications (2)

Publication Number Publication Date
KR930013218A true KR930013218A (en) 1993-07-21
KR930010998B1 KR930010998B1 (en) 1993-11-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910024834A KR930010998B1 (en) 1991-12-28 1991-12-28 Regeneration of process sludge in electrolytes

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108793652A (en) * 2018-07-26 2018-11-13 鞍山创鑫环保科技股份有限公司 A kind of pickling sludge resource processing apparatus and technique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108793652A (en) * 2018-07-26 2018-11-13 鞍山创鑫环保科技股份有限公司 A kind of pickling sludge resource processing apparatus and technique
CN108793652B (en) * 2018-07-26 2024-01-02 鞍山创鑫环保科技股份有限公司 Pickling sludge recycling treatment device and technology

Also Published As

Publication number Publication date
KR930010998B1 (en) 1993-11-19

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