DE59307164D1 - Process for extending the service life of electrolyte solutions by eliminating organic contaminants - Google Patents

Process for extending the service life of electrolyte solutions by eliminating organic contaminants

Info

Publication number
DE59307164D1
DE59307164D1 DE59307164T DE59307164T DE59307164D1 DE 59307164 D1 DE59307164 D1 DE 59307164D1 DE 59307164 T DE59307164 T DE 59307164T DE 59307164 T DE59307164 T DE 59307164T DE 59307164 D1 DE59307164 D1 DE 59307164D1
Authority
DE
Germany
Prior art keywords
electrolyte solutions
adsorbents
extending
service life
organic contaminants
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.)
Expired - Lifetime
Application number
DE59307164T
Other languages
German (de)
Inventor
Hans-Wilhelm Prof Dr Lieber
Klaus Prof Dr Fischwasser
Bernd Dipl Ing Fenk
Dieter Dipl Ing Hahnewald
Mueller Jens Dr
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.)
Atotech Deutschland GmbH and Co KG
Original Assignee
HAHNEWALD GmbH
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
Priority claimed from DE19924241867 external-priority patent/DE4241867A1/en
Application filed by HAHNEWALD GmbH filed Critical HAHNEWALD GmbH
Application granted granted Critical
Publication of DE59307164D1 publication Critical patent/DE59307164D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C25D21/18—Regeneration of process solutions of electrolytes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • 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
    • C25D21/22—Regeneration of process solutions by ion-exchange

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Secondary Cells (AREA)
  • Hybrid Cells (AREA)
  • Primary Cells (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention relates to a method of extending the useful life of electrolyte solutions by eliminating interfering organic substances by means of regenerable adsorber polymers. The method is used for treating electrolyte solutions which, for example, are used in the electrolytic deposition of metal coatings and layers and in which the organic constituents of the bath have been converted into undesired byproducts as a result of reactions. An object of the invention is the low-cost elimination of interfering organic substances by means of regenerable adsorbents, primarily using adsorber polymers, with no or only minimal electrolyte losses occurring and the regeneration of the adsorbents being carried out using inorganic acids or alkalis. The complete desorption of the adsorbed mixtures is here achieved by an oxidative pretreatment of the loaded adsorbents and the subsequent regeneration steps.
DE59307164T 1992-12-11 1993-12-04 Process for extending the service life of electrolyte solutions by eliminating organic contaminants Expired - Lifetime DE59307164D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924241867 DE4241867A1 (en) 1992-12-11 1992-12-11 Increasing working life of electrolytic bath contg. heavy metals - by removing harmful organic material with adsorption polymer which is then itself regenerated with acid or alkali
DE4328876A DE4328876A1 (en) 1992-12-11 1993-08-27 Method of extending the useful life of electrolyte solutions by eliminating interfering organic substances

Publications (1)

Publication Number Publication Date
DE59307164D1 true DE59307164D1 (en) 1997-09-25

Family

ID=25921246

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4328876A Ceased DE4328876A1 (en) 1992-12-11 1993-08-27 Method of extending the useful life of electrolyte solutions by eliminating interfering organic substances
DE59307164T Expired - Lifetime DE59307164D1 (en) 1992-12-11 1993-12-04 Process for extending the service life of electrolyte solutions by eliminating organic contaminants

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4328876A Ceased DE4328876A1 (en) 1992-12-11 1993-08-27 Method of extending the useful life of electrolyte solutions by eliminating interfering organic substances

Country Status (2)

Country Link
AT (1) ATE157129T1 (en)
DE (2) DE4328876A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10226224A1 (en) * 2002-06-13 2004-01-08 Jörg Schiffer GmbH & Co. KG Nickel galvanizing installation contains a process bath for nickel plating objects and rinsing containers with a rinsing solution for cleaning the nickel-plated objects
ES2698205T3 (en) 2005-11-25 2019-02-01 Macdermid Enthone Inc Procedure and device for the purification of process solutions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD280560A1 (en) * 1989-03-13 1990-07-11 Leipzig Galvanotechnik METHOD FOR THE REGENERATION OF UNUSABLE PROCESS SOLUTIONS OF THE SURFACE-TREATING INDUSTRY
DE4241867A1 (en) * 1992-12-11 1994-06-16 Hahnewald Gmbh Increasing working life of electrolytic bath contg. heavy metals - by removing harmful organic material with adsorption polymer which is then itself regenerated with acid or alkali

Also Published As

Publication number Publication date
ATE157129T1 (en) 1997-09-15
DE4328876A1 (en) 1995-03-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ATOTECH DEUTSCHLAND GMBH, 10553 BERLIN, DE