Technical note laboratory study of effect of recycle water on flotation of a Cu/Zn sulphide ore

Liu, L.; Rao, S. Ramachandra; Finch, J.A.

doi:10.1016/0892-6875(93)90095-5

Cited by 29 publications

(9 citation statements)

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“…Flotation of Pb-Zn ores in a Romanian plant showed pooxvr lead recovery after 20 recycles of water [20]. The present study follows the preliminary work reported in several publications [14][15][16][17][18][19][20] with conflicting results on flotation kinetics influenced by recycled water. This paper describes a laboratory flotation study on the effect of recycled water on copper-tailing from Benambra.…”

Section: Introductionsupporting

confidence: 52%

Kinetics Studies on Effect of Recycled Water on Flotation of Copper Tailings from Benambra Mines, Victoria

Haran

Boyapati

Swaminathan

1996

Dev. Chem. Eng. Mineral Process.

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Section: Introductionsupporting

confidence: 52%

Kinetics Studies on Effect of Recycled Water on Flotation of Copper Tailings from Benambra Mines, Victoria

Haran

Boyapati

Swaminathan

1996

Dev. Chem. Eng. Mineral Process.

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“…This hypothesis is supported by the tetrathionate concentrations, which were almost twofold in the Zn plant than in the Cu plant. Thiosalts concentration and particularly its speciation can impact the flotation of sulfide ore due to its capacity to acidify the media and to reduce the ORP value [91,92]. Higher total thiosalt and tetrathionate concentrations in June may have had some effect on the archaeal diversity (Figure 13).…”

Section: Discussionmentioning

confidence: 99%

Identification and Metabolism of Naturally Prevailing Microorganisms in Zinc and Copper Mineral Processing

Miettinen

Bomberg

et al. 2021

Minerals

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It has only recently been discovered that naturally prevailing microorganisms have a notable role in flotation in addition to chemical process parameters and overall water quality. This study’s aim was to assess the prevailing microbial communities in relation to process chemistry in a zinc and copper mineral flotation plant. Due to the limitations of cultivation-based microbial methods that detect only a fraction of the total microbial diversity, DNA-based methods were utilised. However, it was discovered that the DNA extraction methods need to be improved for these environments with high mineral particle content. Microbial communities and metabolism were studied with quantitative PCR and amplicon sequencing of bacterial, archaeal and fungal marker genes and shotgun sequencing. Bacteria dominated the microbial communities, but in addition, both archaea and fungi were present. The predominant bacterial metabolism included versatile sulfur compound oxidation. Putative Thiovirga sp. dominated in the zinc plant and the water circuit samples, whereas Thiobacillus spp. dominated the copper plant. Halothiobacillus spp. were also an apparent part of the community in all samples. Nitrogen metabolism was more related to assimilatory than dissimilatory nitrate and nitrite oxidation/reduction reactions. Abundance of heavy metal resistance genes emphasized the adaptation and competitive edge of the core microbiome in these extreme conditions compared to microorganisms freshly entering the process.

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“…The flotation tests were done using the water ratios shown in Table 2. The water samples were stored in a refrigerator until further use [10]. Also, a weighted average was computed for the metallurgical results.…”

Section: Flotation Testingmentioning

confidence: 99%

The Effects of Water Recycling on Flotation at a North American Concentrator—Part 1

Feo¹,

Mortazavi²,

Langley³

et al. 2020

JMMCE

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Water chemistry and its impact on mineral processing operations are not well understood and often not adequately monitored. CanmetMINING, as part of its water management research program, has been involved in a project initiated to identify opportunities for improving water recovery, water treatment, and recycling in the mining and mineral processing operations. One of the main objectives of this work is to evaluate and assess water chemistry and identify factors that impact mineral recovery, concentrate grade, and metal extraction efficiencies in order to understand and mitigate negative impacts of water recycling and improve process efficiency. In collaboration with a North American concentrator, CanmetMINING has been involved in assessing the water chemistry in the mill and evaluating water recycling options for select process streams to reduce fresh water intake and maximize recycling. The overall goal of the project is to investigate options for water recycling (increase the thickener overflow recirculation from thickener overflow tank) without affecting nickel and copper metallurgy. The results of the sampling campaigns showed that the water chemistry of the streams was fairly consistent throughout the year with no significant seasonal variations. The laboratory tests illustrated that when higher quantities of thickener overflow from thickener overflow were used, the nickel + copper grade versus nickel recovery curves shifted towards lower values. These observations were observed for the plant water samples obtained in April, June and August 2019.

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Technical note laboratory study of effect of recycle water on flotation of a Cu/Zn sulphide ore

Cited by 29 publications

References 1 publication

Kinetics Studies on Effect of Recycled Water on Flotation of Copper Tailings from Benambra Mines, Victoria

Kinetics Studies on Effect of Recycled Water on Flotation of Copper Tailings from Benambra Mines, Victoria

Identification and Metabolism of Naturally Prevailing Microorganisms in Zinc and Copper Mineral Processing

The Effects of Water Recycling on Flotation at a North American Concentrator—Part 1

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