KR970043336A - 온 박리공정에서 방출되는 폐유기용액의 재생방법 - Google Patents

온 박리공정에서 방출되는 폐유기용액의 재생방법 Download PDF

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KR970043336A
KR970043336A KR1019950046006A KR19950046006A KR970043336A KR 970043336 A KR970043336 A KR 970043336A KR 1019950046006 A KR1019950046006 A KR 1019950046006A KR 19950046006 A KR19950046006 A KR 19950046006A KR 970043336 A KR970043336 A KR 970043336A
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South Korea
Prior art keywords
solution
silver
electrode
organic solution
waste
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KR1019950046006A
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KR0153201B1 (ko
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황길남
박성우
김세진
박선녀
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김무
주식회사 아남반도체기술
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Publication of KR970043336A publication Critical patent/KR970043336A/ko
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Publication of KR0153201B1 publication Critical patent/KR0153201B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/46—Regeneration of etching compositions
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
    • C25C1/08—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of nickel or cobalt
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/18—Electrolytic production, recovery or refining of metals by electrolysis of solutions of lead
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/20—Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06—Operating or servicing

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

본 발명은 반도체 리드프레임 생산공정에서 은 박리후에 방출되는 폐유기용액을 재생하기 위한 방법에 관한 것이다. 은 박라이외에 박리되는 금속이온들의 착화합물로 인한 은 박리용액의 성능저하를 전기화학적 전기분해법을 사용하여 은 박리기능을 상실한 은 박리폐용액으로 부터 금속이온들을 은 박리용액의 주성분인 유기물의 부반응없이 회수하여 재생하므로써, 폐수처리비용과 환경오염을 줄이고 박리용액의 소비량을 줄이는 것을 목적으로 하며, 또한 연속재생장치인 경우 리드프레임의 은 박리 박리공정의 용액교환을 위한 공정멈춤(Down Time)을 해결하기 위한 것을 목적으로 한다. 본 발명은 전원 공급장치와 전극셀로 구성되어 있으며, 상기 전기 셀은 양극의 백금망전극 또는 백금이 도금된 티타늄전극과 음극의 구리전극들이 교대로 설치되어 있는 재생장치를 사용하여 전압 -3.5~-2.0V, 바람직하게는 -2.7~-2.4V, 재생시간 1~3시간, 바람직하게는 2~3시간 동안 재생하는 것을 특징으로 한다.

Description

온 박리공정에서 방출되는 폐유기용액의 재생방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 재생장치
제2도는 리드프레임 공정에서 은 박리용액의 재생을 위한 장치의 구조도

Claims (4)

  1. 전원공급장치와 전극셀로 구성되어 있으며, 상기 전기셀은 양극의 백금망전극 또는 백금이 도금된 티타늄 전극과 음극의 구리전극들이 교대로 설치되어 있는 재생장치를 사용하여 전압 -3.5~-2.0V, 바람직하게는 -2.7~-2.4V, 재생시간 1~3시간, 바람직하게는 2~3시간 동안 전기화학적 전기분해법에 의하여 재생하는 것을 특징으로 하는 은 박리공정에서 방출되는 폐유기용액의 재생방법.
  2. 제1항에 있어서, 폐유기용액이 하기의 일반식을 갖는 화합물을 포함하는 것이며, M(C3H5O3)n (식중 M은 Ag, Pt, Pd, Cu 또는 Ni 일 수 있으며, n은 1 또는 2인 정수이다.) 상기 화합물은 다음과 같은 작용기를 갖는 것인 폐유기용액의 재생방법.
  3. 제1항에 있어서, 재생장치가 주용기에 연설되어 있어 폐용액이 동시재생되는 것인 폐유기용액의 재생방법.
  4. 제1항에 있어서, 재생장치가 주용기에 연속된 저장용기에 연설되어 있어 폐용액의 배치재생되는 것인 폐유기용액의 재생방법.
KR1019950046006A 1995-12-01 1995-12-01 은 박리공정에서 방출되는 폐유기용액의 재생방법 KR0153201B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950046006A KR0153201B1 (ko) 1995-12-01 1995-12-01 은 박리공정에서 방출되는 폐유기용액의 재생방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950046006A KR0153201B1 (ko) 1995-12-01 1995-12-01 은 박리공정에서 방출되는 폐유기용액의 재생방법

Publications (2)

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KR970043336A true KR970043336A (ko) 1997-07-26
KR0153201B1 KR0153201B1 (ko) 1998-11-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100837093B1 (ko) * 2008-02-15 2008-06-12 동우이엔이주식회사 오일재생장치 및 방법
CN114538687A (zh) * 2022-02-22 2022-05-27 广州丰江微电子有限公司 一种用于引线框架表面处理的废水处理系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100299011B1 (ko) * 1999-06-30 2001-09-22 이재승 무기물 폐 슬러지로 부터 은을 회수하는 방법
KR101292475B1 (ko) * 2006-08-29 2013-07-31 동우 화인켐 주식회사 전기분해를 이용한 박리제 재생방법

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100837093B1 (ko) * 2008-02-15 2008-06-12 동우이엔이주식회사 오일재생장치 및 방법
CN114538687A (zh) * 2022-02-22 2022-05-27 广州丰江微电子有限公司 一种用于引线框架表面处理的废水处理系统
CN114538687B (zh) * 2022-02-22 2022-11-11 广州丰江微电子有限公司 一种用于引线框架表面处理的废水处理系统

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