MD4032B1 - Process for the regeneration of an electrolyte for the deposition of iron platings - Google Patents

Process for the regeneration of an electrolyte for the deposition of iron platings Download PDF

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Publication number
MD4032B1
MD4032B1 MDA20090094A MD20090094A MD4032B1 MD 4032 B1 MD4032 B1 MD 4032B1 MD A20090094 A MDA20090094 A MD A20090094A MD 20090094 A MD20090094 A MD 20090094A MD 4032 B1 MD4032 B1 MD 4032B1
Authority
MD
Moldova
Prior art keywords
regeneration
deposition
polarization time
pulses
platings
Prior art date
Application number
MDA20090094A
Other languages
Romanian (ro)
Other versions
MD4032C2 (en
Inventor
Olga Covaliova
Original Assignee
Universitatea De Stat Din Moldova
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 Universitatea De Stat Din Moldova filed Critical Universitatea De Stat Din Moldova
Priority to MDA20090094A priority Critical patent/MD4032C2/en
Publication of MD4032B1 publication Critical patent/MD4032B1/en
Publication of MD4032C2 publication Critical patent/MD4032C2/en

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    • 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

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  • Electroplating Methods And Accessories (AREA)

Abstract

Inventia se refera la un procedeu de regenerare a electrolitilor pentru depunerea acoperirilor feroase pe baza sarurilor de Fe(II) si poate fi aplicata pentru restabilirea pieselor uzate ale masinilor si mecanismelor. Esenta procedeului include reducerea ionilor de Fe(III) pana la Fe(II) pe electrozi volumici porosi penetrabili cu grosimea stratului de 0,5…1,0 cm, cu viteza fluxului de 0,5…0,75 L/m2·s la un regim al curentului periodic pulsativ in doua etape cu densitatea curentului catodic Jk1 al primului impuls de 5…10 Ŕ/dm2 si cu timpul de polarizare tk1 de 10…20 s, iar a celui de al doilea impuls Jk2 de 25…30 Ŕ/dm2 si timpul de polarizare tk2 de 5…10 s, si raportul timpului sumar de polarizare a impulsurilor ale ambelor etape la timpul pauzei tp dintre impulsuri de (tk1+ tk2) : tp = 1 : (1…1,5). In calitate de electrozi volumici porosi penetrabili se utilizeaza materialele fibrocarbonice.The invention relates to a process for the regeneration of electrolytes for the deposition of ferrous coatings based on Fe (II) salts and can be applied for the restoration of worn parts of machines and mechanisms. The essence of the process includes the reduction of Fe (III) ions to Fe (II) on penetrating porous volumetric electrodes with a layer thickness of 0.5… 1.0 cm, with a flow rate of 0.5… 0.75 L / m2 · s at a regime of the periodic pulsating current in two stages with the density of the cathodic current Jk1 of the first pulse of 5… 10 Ŕ / dm2 and with the polarization time tk1 of 10… 20 s, and of the second pulse Jk2 of 25… 30 Ŕ / dm2 and the polarization time tk2 of 5… 10 s, and the ratio of the summary polarization time of the pulses of both stages during the pause tp between the pulses of (tk1 + tk2): tp = 1: (1… 1,5). Fibrocarbon materials are used as penetrating porous volumetric electrodes.

MDA20090094A 2009-05-22 2009-05-22 Process for the regeneration of an electrolyte for the deposition of iron platings MD4032C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20090094A MD4032C2 (en) 2009-05-22 2009-05-22 Process for the regeneration of an electrolyte for the deposition of iron platings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20090094A MD4032C2 (en) 2009-05-22 2009-05-22 Process for the regeneration of an electrolyte for the deposition of iron platings

Publications (2)

Publication Number Publication Date
MD4032B1 true MD4032B1 (en) 2010-04-30
MD4032C2 MD4032C2 (en) 2010-11-30

Family

ID=43569591

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20090094A MD4032C2 (en) 2009-05-22 2009-05-22 Process for the regeneration of an electrolyte for the deposition of iron platings

Country Status (1)

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MD (1) MD4032C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4087C1 (en) * 2010-02-10 2011-08-31 Государственный Университет Молд0 Process for chemical-catalytic deposition of metal coatings
MD4159C1 (en) * 2010-10-25 2012-10-31 Государственный Университет Молд0 Process for electrochemical regeneration of the oxidized iron plating electrolyte
MD4229C1 (en) * 2012-02-16 2013-12-31 Государственный Университет Молд0 Device and method for analytical control of the content of iron(III) ions in the iron plating electrolyte and plant for electrochemical regeneration of iron plating electrolyte with automatic control

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1158624A1 (en) * 1978-11-29 1985-05-30 Naumov Yurij Method of regenerating iron-copper-chloride pickles
DE4407448C2 (en) * 1994-03-07 1998-02-05 Mib Metallurg Und Oberflaechen Electrolysis process for regenerating an iron (III) chloride or iron (III) sulfate solution, in particular for spray etching steel
US7378011B2 (en) * 2003-07-28 2008-05-27 Phelps Dodge Corporation Method and apparatus for electrowinning copper using the ferrous/ferric anode reaction
MD3057G2 (en) * 2005-03-15 2007-02-28 Вильгельм КОСОВ Process for iron or copper electrochemical cleaning
MD3661C2 (en) * 2005-06-03 2009-02-28 Институт Прикладной Физики Академии Наук Молдовы Process for obtaining iron electroplates
MD3455G2 (en) * 2006-01-26 2008-10-31 Институт Прикладной Физики Академии Наук Молдовы Process for electrolytic iron deposition onto cylindrical surfaces
RU2334834C1 (en) * 2006-12-13 2008-09-27 Государственное образовательное учреждение высшего профессионального образования "Брянская государственная инженерно-технологическая академия" Method of reduction of electrolyte for anode preparation of parts on base of iron to ironing
MD3954C2 (en) * 2008-07-16 2010-03-31 Государственный Университет Молд0 Process for regenerating spent galvanic nichel plating electrolytes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4087C1 (en) * 2010-02-10 2011-08-31 Государственный Университет Молд0 Process for chemical-catalytic deposition of metal coatings
MD4159C1 (en) * 2010-10-25 2012-10-31 Государственный Университет Молд0 Process for electrochemical regeneration of the oxidized iron plating electrolyte
MD4229C1 (en) * 2012-02-16 2013-12-31 Государственный Университет Молд0 Device and method for analytical control of the content of iron(III) ions in the iron plating electrolyte and plant for electrochemical regeneration of iron plating electrolyte with automatic control

Also Published As

Publication number Publication date
MD4032C2 (en) 2010-11-30

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FG4A Patent for invention issued
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees