Transport of impurities and water during potassium nitrate synthesis by electrodialysis metathesis

Jaroszek, Hanna; Lis, Aneta; Dydo, Piotr

doi:10.1016/j.seppur.2015.12.009

Cited by 33 publications

(9 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The water osmotic molar flux found was around four orders of magnitude lower than molar diffusive flux of salts. The above confirms conclusion of negligible, compared to electroosmotic flux, role of osmosis in water transport during ED-M [1].…”

Section: Osmotic Water Fluxsupporting

confidence: 88%

Diffusion And Osmosis In Potassium Nitrate Synthesis By Electrodialysis Metathesis

Jaroszek

Dydo

2016

Architecture, Civil Engineering, Environment

Self Cite

View full text Add to dashboard Cite

Electrodialysis-metathesis (ED-M) is an alternative synthesis route for metathesis (double replacement) reactions: AB + CD = AD + CB (1) but, contrary to conventional metathesis, it is not an equilibrium process, which eases separation of products from the reaction mixture where all components are highly soluble [1]. Potassium nitrate is an example of chemical compound produced on industrial scale by energy consuming chemical metathesis processes. ED-M can be a promising alternative for its production, both in terms of product quality and environment protection, thanks to reduced water and energy consumption. Beside electric field-driven transport of ionic species, which was investigated for KNO 3 synthesis in ED-M

show abstract

Section: Osmotic Water Fluxsupporting

confidence: 88%

Diffusion And Osmosis In Potassium Nitrate Synthesis By Electrodialysis Metathesis

Jaroszek

Dydo

2016

Architecture, Civil Engineering, Environment

Self Cite

View full text Add to dashboard Cite

show abstract

“…Current technological advances make EDM steadily gain more and more interest. Global environmental and resources issues shifted the interest toward EDM compared to less environmental-friendly chemical methods, due to the high purity of its products and its high current efficiency [ 143 , 144 ]. In order to reach optimum conditions in terms of highest current efficiency and product purity, researchers have been continuously studying process parameters.…”

Section: Recent Technological Developments Based On Ed Membrane Phmentioning

confidence: 99%

“…Most recent applications include chloride-free fertilizer synthesis: potassium sulfate [ 145 , 151 ], potassium nitrate [ 143 , 146 , 148 , 151 , 152 ] or potassium carbonate [ 151 ]; production of high-value fine chemicals: quaternary ammonium hydroxide reactants and solvents such as, tetrapropyl ammonium hydroxide (TPAOH) [ 144 ] or ionic liquid, choline dihydrogen phosphate [ 147 ]. While EDM is a relatively low-cost process, additional drying steps (usually, evaporative crystallization) would be required to obtain a solid salt and could impact the final cost [ 147 ].…”

Section: Recent Technological Developments Based On Ed Membrane Phmentioning

confidence: 99%

Electrodialytic Processes: Market Overview, Membrane Phenomena, Recent Developments and Sustainable Strategies

Bazinet

Geoffroy

2020

Membranes

View full text Add to dashboard Cite

In the context of preserving and improving human health, electrodialytic processes are very promising perspectives. Indeed, they allow the treatment of water, preservation of food products, production of bioactive compounds, extraction of organic acids, and recovery of energy from natural and wastewaters without major environmental impact. Hence, the aim of the present review is to give a global portrait of the most recent developments in electrodialytic membrane phenomena and their uses in sustainable strategies. It has appeared that new knowledge on pulsed electric fields, electroconvective vortices, overlimiting conditions and reversal modes as well as recent demonstrations of their applications are currently boosting the interest for electrodialytic processes. However, the hurdles are still high when dealing with scale-ups and real-life conditions. Furthermore, looking at the recent research trends, potable water and wastewater treatment as well as the production of value-added bioactive products in a circular economy will probably be the main applications to be developed and improved. All these processes, taking into account their principles and specificities, can be used for specific eco-efficient applications. However, to prove the sustainability of such process strategies, more life cycle assessments will be necessary to convince people of the merits of coupling these technologies.

show abstract

“…As a consequence, it is assumed that the chloride flux is very small and comparable to or smaller than the sodium flux. Similar observations concerning the magnitude of unwanted cation or anion fluxes were made for other electrodialysis metathesis processes [28,34]. For example, Jaroszek et al studied the synthesis of KNO 3 by electrodialysis metathesis; it was found that the product stream was more contaminated by cations (Na + ) than by anions (SO 4 2-).…”

Section: Transport Of Impuritiesmentioning

confidence: 61%

“…Jaroszek et al discussed the transport of impurities (Na + , Cland SO 4 2-) during the synthesis of KNO 3 [28].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and transport of impurities in electrodialysis metathesis: Production of choline dihydrogen phosphate

Rottiers

Bruggen

Pinoy

2017

Journal of Membrane Science

View full text Add to dashboard Cite

The production of ionic liquids involves a metathesis step in which the desired anion and cation are combined. Depending on the desired product purity, this step can be accomplished by different methods, including acid base neutralisation reactions, the use of silver salts and electrodialysis. In this paper, electrodialysis metathesis is used for the production of choline dihydrogen phosphate. The influence of operating parameters was investigated. It was found that a high current density, low diluate and choline dihydrogen phosphate concentration yield the highest product purity. Furthermore, it was illustrated for the first time that electrodialysis metathesis is able to yield a product purity comparable with that obtained by using silver salts. An electrical efficiency of 94.0% for choline and 58.6% for dihydrogen phosphate was achieved. The total cost of the electrodialysis process was estimated at 0.06 € per mole of choline dihydrogen phosphate. The second aim of this paper is the characterization of the flow of impurities in electrodialysis metathesis. In addition, the effect of operating variables on this flow of impurities was quantified. In the further optimization of the electrodialysis metathesis process, this knowledge is likely to be of great interest in conducting salt metathesis reactions. Highlights Production of choline dihydrogen phosphate using electrodialysis metathesis  Very high product purity obtained, comparable with silver metathesis reaction  Quantification of transport mechanism of impurities in electrodialysis metathesis  Economic evaluation of electrodialysis process was performed

show abstract

Transport of impurities and water during potassium nitrate synthesis by electrodialysis metathesis

Cited by 33 publications

References 21 publications

Diffusion And Osmosis In Potassium Nitrate Synthesis By Electrodialysis Metathesis

Diffusion And Osmosis In Potassium Nitrate Synthesis By Electrodialysis Metathesis

Electrodialytic Processes: Market Overview, Membrane Phenomena, Recent Developments and Sustainable Strategies

Synthesis and transport of impurities in electrodialysis metathesis: Production of choline dihydrogen phosphate

Contact Info

Product

Resources

About