MD3057F1 - Process for iron or copper electrochemical cleaning - Google Patents

Process for iron or copper electrochemical cleaning

Info

Publication number
MD3057F1
MD3057F1 MDA20050077A MD20050077A MD3057F1 MD 3057 F1 MD3057 F1 MD 3057F1 MD A20050077 A MDA20050077 A MD A20050077A MD 20050077 A MD20050077 A MD 20050077A MD 3057 F1 MD3057 F1 MD 3057F1
Authority
MD
Moldova
Prior art keywords
iron
copper
electrolysis
electrolyte
density
Prior art date
Application number
MDA20050077A
Other languages
Romanian (ro)
Other versions
MD3057G2 (en
Inventor
Vilghelm Cosov
Tatiana Cosova
Iulia PALAMARCIUC
Alexandru Matiusenschi
Original Assignee
Vilghelm Cosov
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 Vilghelm Cosov filed Critical Vilghelm Cosov
Priority to MDA20050077A priority Critical patent/MD3057G2/en
Publication of MD3057F1 publication Critical patent/MD3057F1/en
Publication of MD3057G2 publication Critical patent/MD3057G2/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

  • Electrolytic Production Of Metals (AREA)

Abstract

Inventia se refera la domeniul chimiei, in special la procedeele electrochimice de obtinere a fierului sau cuprului in stare pura. Procedeul, conform inventiei, include electroliza solutiilor apoase de electrolit recirculate cu folosirea curentului periodic cu impuls retur reglabil pe durata, razuirea periodica de pe catod a particulelor metalice reduse si transferul lor intr-o faza organica lichida compusa din perclorbutadiena sau percloretilena, a caror densitate este mai mare decat cea a electrolitului. Ňotodata in calitate de electrolit se utilizeaza solutiile obtinute la dizolvarea in acid clorhidric sau sulfuric a metalelor respective sub forma de deseuri de la industria de prelucrare a metalelor sau de particule metalice reduse. Purificarea fierului se efectueaza prin electroliza solutiei de clorura, ce contine 120...180 g/l ioni de fier si are pH 0,8...2,4, la densitatea catodica a curentului de (34...42)*103 A/m2 si cea anodica de (5...20)*103 A/m2. Purificarea cuprului se efectueaza prin electroliza solutiei de sulfat, ce contine 110...140 g/l ioni de cupru si are pH 2,5...4,2, la densitatea catodica a curentului de (10...16)*103 A/m2 si cea anodica de (2...8)*103 A/m2.The invention relates to the field of chemistry, in particular to electrochemical processes for obtaining pure iron or copper. The process, according to the invention, includes electrolysis of recirculated aqueous electrolyte solutions using periodic flow with adjustable return pulse over time, periodic scraping from the cathode of reduced metal particles and their transfer into a liquid organic phase composed of perchlorobutadiene or perchlorethylene, whose density it is larger than that of the electrolyte. ŇAlso as an electrolyte, the solutions obtained for the dissolution in hydrochloric or sulfuric acid of the respective metals in the form of waste from the metal processing industry or of reduced metal particles are used. The purification of iron is carried out by electrolysis of the chloride solution, which contains 120 ... 180 g / l iron ions and has a pH of 0.8 ... 2.4, at the cathodic density of the current of (34 ... 42) * 103 A / m2 and the anodic one of (5 ... 20) * 103 A / m2. The purification of copper is performed by electrolysis of the sulfate solution, which contains 110 ... 140 g / l copper ions and has a pH of 2.5 ... 4.2, at the cathodic current density of (10 ... 16) * 103 A / m2 and the anodic one of (2 ... 8) * 103 A / m2.

MDA20050077A 2005-03-15 2005-03-15 Process for iron or copper electrochemical cleaning MD3057G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20050077A MD3057G2 (en) 2005-03-15 2005-03-15 Process for iron or copper electrochemical cleaning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20050077A MD3057G2 (en) 2005-03-15 2005-03-15 Process for iron or copper electrochemical cleaning

Publications (2)

Publication Number Publication Date
MD3057F1 true MD3057F1 (en) 2006-05-31
MD3057G2 MD3057G2 (en) 2007-02-28

Family

ID=36497655

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20050077A MD3057G2 (en) 2005-03-15 2005-03-15 Process for iron or copper electrochemical cleaning

Country Status (1)

Country Link
MD (1) MD3057G2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4032C2 (en) * 2009-05-22 2010-11-30 Государственный Университет Молд0 Process for the regeneration of an electrolyte for the deposition of iron platings
MD4381C1 (en) * 2010-12-29 2016-06-30 Вильгельм КОСОВ Process for purification of aqueous solution from radionuclides

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU944031A1 (en) * 1980-12-08 1982-07-15 Кишиневский Сельскохозяйственный Институт Им.М.В.Фрунзе Device for supply of electroplating bathes with periodic current with reverse pulse
MD747G2 (en) * 1996-02-15 1998-03-31 Atelierul Experimental De Creatie Ltd Process for regeneration of the metal etching spent solution and device for realization thereof

Also Published As

Publication number Publication date
MD3057G2 (en) 2007-02-28

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Legal Events

Date Code Title Description
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