Cementation of copper onto brass particles in a packed bed

The process of copper ion cementation from dilute solution was investigated using a packed bed column filled with brass particles. The influence of initial pH value of the treated solution, particle size and the solution flow rate on the cementation process was determined. It was observed that, in g...

Full description

Saved in:
Bibliographic Details
Main Authors: Stanković Velizar D., Šerbula Snežana M., Jančeva B.
Format: Article
Language:English
Published: University of Belgrade, Technical Faculty, Bor 2004-01-01
Series:Journal of Mining and Metallurgy. Section B: Metallurgy
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-5339/2004/1450-53390401021S.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832569606954287104
author Stanković Velizar D.
Šerbula Snežana M.
Jančeva B.
author_facet Stanković Velizar D.
Šerbula Snežana M.
Jančeva B.
author_sort Stanković Velizar D.
collection DOAJ
description The process of copper ion cementation from dilute solution was investigated using a packed bed column filled with brass particles. The influence of initial pH value of the treated solution, particle size and the solution flow rate on the cementation process was determined. It was observed that, in general, the process rate passes through an initial period of particle surface activation; a period of constant rate and a period of decreasing rate. Increasing the initial pH value of treated solution, the rate of cementation has significantly been slowed down and, at pH > 2.6, the process becomes very slow due to an H+-ions consumption and consequently measurable change of pH during the process. Using a packed bed of brass particles, it is possible to remove copper ions from feeding stream to a degree higher than 95% for about 20 - 30 minutes, i.e. an initial copper concentration of about 250 mg/dm3can be reduced to less than 10 mg/dm3. For an hour of the process time the initial level of Cu2+ can reach a value less than 1 ppm, meaning the investigated process is highly efficient. The concentration of zinc in the solution after cementation is about twice higher than the initial copper concentration in the feeding solution. The method of packed bed cementation, using brass particles, which are usually a secondary material for re-melting, could particularly be favorable instead of the conventional one, because zinc dust is being substituted with some less valuable starting material that could be upgraded on copper before its re-melting.
format Article
id doaj-art-a2827fd74079415da1663423fa597f47
institution Kabale University
issn 1450-5339
language English
publishDate 2004-01-01
publisher University of Belgrade, Technical Faculty, Bor
record_format Article
series Journal of Mining and Metallurgy. Section B: Metallurgy
spelling doaj-art-a2827fd74079415da1663423fa597f472025-02-02T20:29:19ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392004-01-01401213910.2298/JMMB0401021SCementation of copper onto brass particles in a packed bedStanković Velizar D.Šerbula Snežana M.Jančeva B.The process of copper ion cementation from dilute solution was investigated using a packed bed column filled with brass particles. The influence of initial pH value of the treated solution, particle size and the solution flow rate on the cementation process was determined. It was observed that, in general, the process rate passes through an initial period of particle surface activation; a period of constant rate and a period of decreasing rate. Increasing the initial pH value of treated solution, the rate of cementation has significantly been slowed down and, at pH > 2.6, the process becomes very slow due to an H+-ions consumption and consequently measurable change of pH during the process. Using a packed bed of brass particles, it is possible to remove copper ions from feeding stream to a degree higher than 95% for about 20 - 30 minutes, i.e. an initial copper concentration of about 250 mg/dm3can be reduced to less than 10 mg/dm3. For an hour of the process time the initial level of Cu2+ can reach a value less than 1 ppm, meaning the investigated process is highly efficient. The concentration of zinc in the solution after cementation is about twice higher than the initial copper concentration in the feeding solution. The method of packed bed cementation, using brass particles, which are usually a secondary material for re-melting, could particularly be favorable instead of the conventional one, because zinc dust is being substituted with some less valuable starting material that could be upgraded on copper before its re-melting.http://www.doiserbia.nb.rs/img/doi/1450-5339/2004/1450-53390401021S.pdfcementationcopper ionsbrass particlespacked bedzinc
spellingShingle Stanković Velizar D.
Šerbula Snežana M.
Jančeva B.
Cementation of copper onto brass particles in a packed bed
Journal of Mining and Metallurgy. Section B: Metallurgy
cementation
copper ions
brass particles
packed bed
zinc
title Cementation of copper onto brass particles in a packed bed
title_full Cementation of copper onto brass particles in a packed bed
title_fullStr Cementation of copper onto brass particles in a packed bed
title_full_unstemmed Cementation of copper onto brass particles in a packed bed
title_short Cementation of copper onto brass particles in a packed bed
title_sort cementation of copper onto brass particles in a packed bed
topic cementation
copper ions
brass particles
packed bed
zinc
url http://www.doiserbia.nb.rs/img/doi/1450-5339/2004/1450-53390401021S.pdf
work_keys_str_mv AT stankovicvelizard cementationofcopperontobrassparticlesinapackedbed
AT serbulasnezanam cementationofcopperontobrassparticlesinapackedbed
AT jancevab cementationofcopperontobrassparticlesinapackedbed