GB296989A - Process for eliminating excess sulphuric acid from chromium electrolytic baths - Google Patents

Process for eliminating excess sulphuric acid from chromium electrolytic baths

Info

Publication number
GB296989A
GB296989A GB25581/28A GB2558128A GB296989A GB 296989 A GB296989 A GB 296989A GB 25581/28 A GB25581/28 A GB 25581/28A GB 2558128 A GB2558128 A GB 2558128A GB 296989 A GB296989 A GB 296989A
Authority
GB
United Kingdom
Prior art keywords
sulphuric acid
excess sulphuric
chromium
electrolytic baths
eliminating excess
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
Application number
GB25581/28A
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.)
WILHELM GEORG POETZSCH
Original Assignee
WILHELM GEORG POETZSCH
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 WILHELM GEORG POETZSCH filed Critical WILHELM GEORG POETZSCH
Publication of GB296989A publication Critical patent/GB296989A/en
Expired 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

296,989. Poetzsch, W. G., (Assignee of Lauterbach, F.). Sept. 10, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Chromium, depositing.-Excess sulphuric acid is removed from chromium plating baths consisting mainly of chromic acid by the addition of a calculated quantity of a barium compound, particularly barium hydroxide or carbonate.
GB25581/28A 1927-09-10 1928-09-06 Process for eliminating excess sulphuric acid from chromium electrolytic baths Expired GB296989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE296989X 1927-09-10

Publications (1)

Publication Number Publication Date
GB296989A true GB296989A (en) 1929-12-06

Family

ID=6090533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25581/28A Expired GB296989A (en) 1927-09-10 1928-09-06 Process for eliminating excess sulphuric acid from chromium electrolytic baths

Country Status (1)

Country Link
GB (1) GB296989A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533399A2 (en) * 2003-11-24 2005-05-25 Walter Hillebrand GmbH & Co. Galvanotechnik Method for obtaining a waste-water-low alkali zinc-nickel bath

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533399A2 (en) * 2003-11-24 2005-05-25 Walter Hillebrand GmbH & Co. Galvanotechnik Method for obtaining a waste-water-low alkali zinc-nickel bath
EP1533399B1 (en) * 2003-11-24 2011-02-16 Walter Hillebrand GmbH & Co. Galvanotechnik Process for low waste water operation of alkaline zinc-nickel bath

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