The Flotation Process Can Go Green

Kyzas, George Z.; Matis, K. A.

doi:10.3390/pr7030138

Cited by 43 publications

(17 citation statements)

References 57 publications

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“…Xanthates are most commonly obtained by the reaction of alcohol, hydroxide, and carbon disulfide, or by the reaction of alkoxide, which is obtained by the reaction of alcohol and hydroxide, alcohol and alkali metal, ether and hydroxide with carbon disulfide [10]. There are numerous technological procedures for the synthesis of alkaline alkyl xanthates, many of which are applied at the industrial level and protected by patent applications [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. The optimized laboratory two-step procedure presented in this paper relates to the improved process for the production of xanthate collectors at high yield in the form of an aqueous solution or in a solid state (powdery product).…”

Section: Introductionmentioning

confidence: 99%

New Eco-Friendly Xanthate-Based Flotation Agents

Milosavljević¹,

Marinković

Rančić

et al. 2020

Minerals

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An optimal laboratory two-step procedure was developed for sodium/potassium O-alkyl carbonodithioate (sodium/potassium alkyl xanthates) production in the form of aqueous solutions. Sodium isopropyl xanthate (Na-iPrX), as the most effective salt in a real ore flotation process, was also produced at an industrial level and introduced as a collector for copper ores. In order to reduce toxicity of the flotation process and improve sustainability by minimising environmental impacts, collector efficiency and selectivity in the flotation process were studied in relation to possible synergism of xanthates combined with the derived biomass and biodegradable green reagents levulinic acid, 5-hydroxymethyl-2-furanacrylic acid (HMFA), and condensation product of hydroxymethylfurfural and levulinic acid. Optimal content of 30% of HMFA in the collector pointed to the possibility of substitution of commercial xanthate collector without significantly affecting its efficiency/selectivity. The density functional theory (DFT) calculations provided insights into the interaction mechanism of Na-iPrX and HMFA with cooper. The benefits of the presented method highlight production simplicity, mild reaction conditions, high purity and yield of products, no by-products, and technological applicability on an industrial scale.

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Section: Introductionmentioning

confidence: 99%

New Eco-Friendly Xanthate-Based Flotation Agents

Milosavljević¹,

Marinković

Rančić

et al. 2020

Minerals

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show abstract

“…On the other hand, human activity has brought environmental awareness in the median and the political and social agenda around the world [8,9]. Sustainability in this study refers to the reduction of negative impacts on environmental, social, and economic relations, in order to approach climate change, pollution, and resources' management [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Industrial Processes Management for a Sustainable Society: Global Research Analysis

et al. 2020

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Few decades ago, the development of the industrial sector was disconnected from society’s protection. Negative effects awareness emerges from the current industrial processes through the Sustainable Development Goals (SDGs), considering the causal implications to build up a more sustainable society. The aim of this study is to analyze the state of the art in industrial processes management to obtain positive and sustainable effects on society. Thus, a bibliometric analysis of 1911 articles was set up during the 1988–2019 period, bringing up the authors’ productivity indicators in the scientific field, that is, journals, authors, research institutions, and countries. We have identified environmental management; the impact assessments of industrial processes on the environment and its relation with a more sustainable society; as well as the study of the sustainable management of water resources as the related axes in the study of environmental protection with political, economic, and educational approaches. The growing trend of world scientific publications let us observe the relevance of industrial processes management in the implementation of efficient models to achieve sustainable societies. This research contributes to the academic, scientific, and social debate on decision-making both in public and private institutions, and in multidisciplinary groups.

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“…Widely used both synthetic molecules and natural oils are characterised by good efficiency and low unit cost. This makes them suitable for use; however, the growing pressure to balance the industry and reduce water consumption has led to attempts to take a new insight into the development of modern flotation chemicals for over ten years (Kyzas and Matis, 2019). Unfortunately, progressive ideas proposed by the world of science do not go hand in hand with industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Evolution of ideas towards the implementation of nanoparticles as flotation reagents

Legawiec¹,

Polowczyk²

2020

Physicochem. Probl. Miner. Process.

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The paper discusses an idea of nanoparticles application to the flotation process. Due to the growing awareness of the environmental impact of industry and legal restrictions, the directions of research on new chemicals used in mineral processing, as well as in the other branches of industry are changing. The flotation reagents of the future should be, or are expected to be, readily biodegradable, but also their products should be harmless to the environment. A review of the works presented here presents an overview of the state-of-the-art application of nanostructures from early reported polystyrene nanoparticles to the most promising cellulose nanostructures which can be successfully adapted to the desired amphiphilicity parameters through simple functionalization. Limitations on the use of such nano-sized entities related to control aggregation in the flotation process and the ability to adsorb at interphase boundaries are also presented. Overall, nanoparticles can become universal flotation collectors and also an alternative to conventionally used hydrocarbon-based reagents.

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The Flotation Process Can Go Green

Cited by 43 publications

References 57 publications

New Eco-Friendly Xanthate-Based Flotation Agents

New Eco-Friendly Xanthate-Based Flotation Agents

Industrial Processes Management for a Sustainable Society: Global Research Analysis

Evolution of ideas towards the implementation of nanoparticles as flotation reagents

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