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 controlInfo
- 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
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.
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)
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 |
-
2012
- 2012-02-16 MD MDA20120018A patent/MD4229C1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
MD4229C1 (en) | 2013-12-31 |
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Legal Events
Date | Code | Title | Description |
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TK4A | Erratum in official gazette in regard to patent for invention |
Free format text: RECTIFICATION IN INID 57 |
|
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 |