MD4229B1 - 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 - Google Patents

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

Info

Publication number
MD4229B1
MD4229B1 MDA20120018A MD20120018A MD4229B1 MD 4229 B1 MD4229 B1 MD 4229B1 MD A20120018 A MDA20120018 A MD A20120018A MD 20120018 A MD20120018 A MD 20120018A MD 4229 B1 MD4229 B1 MD 4229B1
Authority
MD
Moldova
Prior art keywords
iron
ions
iii
plating electrolyte
plant
Prior art date
Application number
MDA20120018A
Other languages
Moldavian (mo)
Romanian (ro)
Other versions
MD4229C1 (en
Inventor
Olga Covaliova
Original Assignee
Univ 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 Univ De Stat Din Moldova filed Critical Univ De Stat Din Moldova
Priority to MDA20120018A priority Critical patent/MD4229C1/en
Publication of MD4229B1 publication Critical patent/MD4229B1/en
Publication of MD4229C1 publication Critical patent/MD4229C1/en

Links

Classifications

    • 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

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention relates to a plant for electrochemical regeneration of iron plating electrolyte with automatic control, to a device and a method for analytical control of the content of iron(III) ions in the iron plating electrolyte and can be used in the electroplating industry for reconditioning of worn-out parts of machines and mechanisms.The plant, according to the invention, comprises a regeneration unit (11), in which is located a volume-porous flow-through foam nickel cathode (12) and an anode (14), separated by a diaphragm (13) forming the anode space and the cathode space, connected to a galvanic bath (8) through a recirculation pipeline (10), to which is connected a device for analytical control of the content of iron (III) ions through the working electrolyte metered inlet branch pipe and the produced colloidal solution outlet branch pipe, coupled with a flow-through nephelometer (16). The device includes a cylindrical pH electrocorrector (1), in the lower part of which is placed a flow diaphragm electrolyzer, and in the upper part - a mixing unit, in which are placed a pH-meter sensor (6) and a gummed spherical loading of barium hexaferrite (5), and on the outer part is placed a solenoid (7). At the same time, the pH-meter sensor and the nephelometer of the given device are connected to the inputs of the pH-meter amplifier (18) and of the nephelometer amplifier (17), and their outputs - to the input of a comparator (24), the output of which is connected in series to the input of a voltage regulator (25) and to a rectifier (26), the second output of the pH-meter amplifier (18) is connected to the input of another comparator (19), connected to a setting device (20), the output of which is connected in series to an independent voltage regulator (21) and to a rectifier (22).The method, according to the invention, consists in that electrolyte samples are selected in a continuous mode, is added an alkaline reagent, produced by electrochemical generation of OH- ions, at a pH of 3.5…4.1, with the formation of the colloidal iron hydroxide (III) precipitate, which concentration is then determined according to the optical density by the nephelometric analysis at a wavelength of 342 nm.
MDA20120018A 2012-02-16 2012-02-16 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 MD4229C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20120018A MD4229C1 (en) 2012-02-16 2012-02-16 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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20120018A MD4229C1 (en) 2012-02-16 2012-02-16 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

Publications (2)

Publication Number Publication Date
MD4229B1 true MD4229B1 (en) 2013-05-31
MD4229C1 MD4229C1 (en) 2013-12-31

Family

ID=48537080

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20120018A MD4229C1 (en) 2012-02-16 2012-02-16 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

Country Status (1)

Country Link
MD (1) MD4229C1 (en)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1182094A1 (en) * 1984-04-12 1985-09-30 Всесоюзный Проектно-Конструкторский Институт По Электробытовым Машинам И Приборам Apparatus for regenerating chlorine-containing iron-plating electrolyte
SU1254066A1 (en) * 1985-01-24 1986-08-30 Институт Прикладной Физики Ан Мсср Electrode unit for electrochemical regeneration of oxidized electrolyte
JPS63259089A (en) * 1987-04-16 1988-10-26 Kawasaki Steel Corp Method for electrolytically reducing ferric ion in plating solution containing iron
SU1502668A1 (en) * 1987-08-10 1989-08-23 Кишиневское Научно-Производственное Объединение Технологии Электробытового Машиностроения "Технология" Apparatus for electrochemical recovery of oxidized electrolyte of iron plating
JPS6457149A (en) * 1987-08-28 1989-03-03 Nisshin Steel Co Ltd Control method of iron based electroplating liquid
JPH0219500A (en) * 1988-07-05 1990-01-23 Asahi Glass Co Ltd Method for regenerating iron plating solution
JPH02175900A (en) * 1988-12-28 1990-07-09 Nisshin Steel Co Ltd Method for decreasing ferric ion in iron-based plating solution
JPH05331696A (en) * 1992-06-01 1993-12-14 Kobe Steel Ltd Iron-based electroplating method
MD211G2 (en) * 1994-11-29 1996-01-31 Научно-Исследовательский Конструкторско-Технологический Институт Пищевой Промышленности Республики Молдова Drier for liquid materials
JP3525528B2 (en) * 1994-12-26 2004-05-10 信光工業株式会社 Ferric chloride liquid regeneration equipment
MD528G2 (en) * 1995-05-03 1996-11-30 Государственный Университет Молд0 Process for automatic regulation of electrolyts regeneration process
JPH1038830A (en) * 1996-07-25 1998-02-13 Toyota Central Res & Dev Lab Inc Detecting method of iron plating solution trivalent iron ion concentration, trivalent iron ion reducing agent, and reducing method of iron plating solution trivalent iron ion
MD2504G2 (en) * 2002-11-26 2005-01-31 Государственный Университет Молд0 Process for chromed electrolyte generation by automatic control
US7431815B2 (en) * 2005-05-05 2008-10-07 Headway Technologies, Inc. Method to reduce ferric ions in ferrous based plating baths
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
MD4032C2 (en) * 2009-05-22 2010-11-30 Государственный Университет Молд0 Process for the regeneration of an electrolyte for the deposition of iron platings

Also Published As

Publication number Publication date
MD4229C1 (en) 2013-12-31

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FG4A Patent for invention issued
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MM4A Patent for invention definitely lapsed due to non-payment of fees