MD2504F1 - Process for chromed electrolyte generation by automatic control - Google Patents

Process for chromed electrolyte generation by automatic control

Info

Publication number
MD2504F1
MD2504F1 MD20020278A MD20020278A MD2504F1 MD 2504 F1 MD2504 F1 MD 2504F1 MD 20020278 A MD20020278 A MD 20020278A MD 20020278 A MD20020278 A MD 20020278A MD 2504 F1 MD2504 F1 MD 2504F1
Authority
MD
Moldova
Prior art keywords
catholyte
supplementary
electrolyzer
cathodic
anodic
Prior art date
Application number
MD20020278A
Other languages
Romanian (ro)
Other versions
MD2504G2 (en
Inventor
Olga Covaliova
Victor Covaliov
Vilghelm Cosov
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 MDA20020278A priority Critical patent/MD2504G2/en
Publication of MD2504F1 publication Critical patent/MD2504F1/en
Publication of MD2504G2 publication Critical patent/MD2504G2/en

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  • Electrolytic Production Of Metals (AREA)

Abstract

The invention relates to the electrodeposition, in particular to the electrolytic processes for metal surface working. Summary of the invention consists in that the used solution is fed into an electrolyzer, divided by a cation-exchange membrane into the anodic and cathodic chambers, the impurities being deposited in the cathodic chamber in the form of hydroxides, which are removed by filtration. For this purpose, the catholyte is subjected to recirculation through a filter, and the index pH is automatically maintained within the limits 2,5...4,3, by electrochemical correction at the catholyte controllable passage through the corresponding chamber of a supplementary electrolyzer with diaphragm, for whichZ there are recorded and compared the pH values at the outlet from the filter and the supplementary electrolyser. According to the difference between the recorded indexes it is alternatively connected and deconnected the catholyte passage through the anodic and cathodic chambers of the supplementary electrolyzer, afterwards into the catholyte there is introduced a supplementary solution containing sodium sulphate 50...70 g/L and aluminum sulphate 20...30 g/L. Claims: 2Fig.: 1
MDA20020278A 2002-11-26 2002-11-26 Process for chromed electrolyte generation by automatic control MD2504G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20020278A MD2504G2 (en) 2002-11-26 2002-11-26 Process for chromed electrolyte generation by automatic control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20020278A MD2504G2 (en) 2002-11-26 2002-11-26 Process for chromed electrolyte generation by automatic control

Publications (2)

Publication Number Publication Date
MD2504F1 true MD2504F1 (en) 2004-07-31
MD2504G2 MD2504G2 (en) 2005-01-31

Family

ID=32768662

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20020278A MD2504G2 (en) 2002-11-26 2002-11-26 Process for chromed electrolyte generation by automatic control

Country Status (1)

Country Link
MD (1) MD2504G2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD211Z (en) * 2009-06-11 2010-12-31 Государственный Университет Молд0 Device for electrochemical regeneration of oxidized iron-containing electrolyte
MD919Z (en) * 2015-01-13 2016-01-31 Сп Завод Топаз Ао Process for regeneration of electrolyte

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1604749A1 (en) * 1988-02-01 1990-11-07 Институт Химии Ан Мсср Method of automatic control of process of cleaning of effluents from hexavalent chromium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
MD2504G2 (en) 2005-01-31

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Legal Events

Date Code Title Description
MM4A Patent for invention definitely lapsed due to non-payment of fees