Effect of Hydrodynamic Parameters on Membrane Electrolysis Enhancement

Serdiuk, Vasyl; Sklabinskyi, Vsevolod Ivanovych; Bolshanina, S.; Ableyev, Alexey; Dychenko, Tetiana

doi:10.1007/978-3-030-50491-5_22

Cited by 1 publication

(2 citation statements)

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“…The rate of Cr 3+ ions oxidation to CrO4 2ions at the anode depends on the concentration of Cr 3+ ions in the solution, temperature, and current density at the anode [9]. Thus, to maintain the concentration at approximately 1 % in electrochemical chromium plating electrolytes, it is necessary to have a ratio between the cathode areas and anodes in the bath of 1:2 [8].…”

Section: Methodsmentioning

confidence: 99%

“…Thus, to maintain the concentration at approximately 1 % in electrochemical chromium plating electrolytes, it is necessary to have a ratio between the cathode areas and anodes in the bath of 1:2 [8]. The lack of proportionality between the reaction rate and the anode current density indicates that the Cr 3+ ion's oxidation to CrO4 2ions at the anode is not a purely electrochemical reaction [9,10].…”

Section: Methodsmentioning

confidence: 99%

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Regeneration of chromate galvanic solutions in membrane electrochemical devices

Serdiuk

Sklabinskyi

Bolshanina

et al. 2022

JES

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The regeneration processes of industry technological passivating baths of electrochemical cadmium lines and electrochemical galvanizing lines as an applied result of two-chamber membrane cation-exchange electrochemical devices researched. Actual industrial passivation baths of cadmium and zinc galvanic coatings applied as anode chambers. The cathode chamber contained sulfuric acid 1 % solution and a titanium cathode (BT-0). A window was cut in one of the walls with a RALEX®CM-PES 11-66 cation exchange membrane placed in it. The lead (С-0) was used as the anode. A comparative analysis of the performance of these technological baths before and after the using cation exchange membrane electrochemical devices was carried out. As a result of long-term experimental studies, the ecological and economic feasibility of their use was proven

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Section: Methodsmentioning

confidence: 99%