Results 161 to 170 of about 1,236,730 (205)

Heterogeneous bipolar membranes and their application in electrodialysis

Desalination, 2014
Abstract Over the last 50 years, ion exchange membranes have evolved from a laboratory tool to industrial products with significant technical and commercial impacts. Bipolar membranes (BPMs), as a result of their ability to produce acid and alkali from corresponding salt, occupy a special place among them.
Victor Zabolotskii, Nicolay Sheldeshov, Stanislav Melnikov   +2 more
openaire   +1 more source

Production of lithium hydroxide by electrodialysis with bipolar membranes

Separation and Purification Technology, 2021
Abstract In conventional lithium extraction processes, highly purified lithium sulfate is generated as an intermediate, which is transformed into lithium hydroxide for lithium-ion battery applications. This study illustrates the technical feasibility of converting the pre-purified lithium sulfate (Li2SO4) into lithium hydroxide (LiOH) and sulfuric ...
Xia Chen, Xinyu Ruan, Sandra E. Kentish, Gang (Kevin) Li, Tongwen Xu, George Q. Chen   +5 more
openaire   +1 more source

Electrodialysis with bipolar membrane for regeneration of a spent activated carbon

Journal of Hazardous Materials, 2009
The main purpose of the present work was to develop a treatment method to regenerate granular adsorbent beds saturated with H(2)S by utilizing three electrodialysis compartments equipped with a cation or an anion exchange membrane or a bipolar membrane.
N, Drouiche, H, Grib, N, Abdi, H, Lounici, A, Pauss, N, Mameri   +5 more
openaire   +2 more sources

Citric acid production by electrodialysis with bipolar membranes

Chemical Engineering and Processing: Process Intensification, 2002
Production of citric acid from sodium citrate was carried out by electrodialysis (ED), using bipolar membranes (BP) prepared from poly(phenylene oxide) (PPO). The process feasibility was tested using a laboratory ED-cell with an effective area 20 cm 2 . Based on the configuration of BP-cation membranes (C)-BP, the performances of various sodium sulfate
Weihua Yang, Xu Tongwen
exaly   +2 more sources

Fractionation of multicomponent solutions by electrodialysis with bipolar membranes

Petroleum Chemistry, 2012
The process of electrodialysis with bipolar membranes and the performance characteristics of plants that use this process are described. The first results of the laboratory tests of an electrodialysis plant with bipolar membranes are given; these results show that the salt wastes of nuclear power plants can be practically utilized with the manufacture ...
E. N. Egorov, A. A. Svittsov, S. N. Dudnik, V. I. Demkin   +3 more
openaire   +1 more source

Comparison of Bipolar Membrane Electrodialysis, Electrodialysis Metathesis, and Bipolar Membrane Electrodialysis Metathesis for the Conversion of Waste Na2so4: Process Performance and Economic Analysis

Journal of Environmental Management
To convert Na2SO4 into other high-value products (NaOH, H2SO4, and (NH4)2SO4), three types of cell configurations of electrodialysis (ED) were applied (three-compartment bipolar membrane ED (BMED), four-compartment ED metathesis (EDM) and five-compartment bipolar membrane ED multifunction (BMEDM)) and parameters such as average voltage variation ...
Ming, Zhu, Feiyu, He, Ling, Feng, Yongzhi, Chi, Yu-You, Li, Binghui, Tian   +5 more
openaire   +2 more sources

Production of Aldonic Acids by Bipolar Membrane Electrodialysis

Industrial & Engineering Chemistry Research, 2017
Conventional methods for the synthesis of aldonic acids are typically expensive and complex, generate contaminated water, and generally yield a low purity of the products. In this work, the bipolar membrane electrodialysis (BMED) process was used as an environmentally friendly and efficient method to produce aldonic acids (lactobionic acid and gluconic
Jiefeng Pan, Mengjie Miao, Xi Lin, Jiangnan Shen, Bart Van der Bruggen, Congjie Gao   +5 more
openaire   +1 more source

Mechanisms limiting product concentration in bipolar membrane electrodialysis

Desalination
This study addresses the development of bipolar membrane electrodialysis for sodium hydroxide and acid production from strong electrolyte feeds. We studied three primary mechanisms that limit maximum product concentrations: (1) acid diffusion through anion‐exchange and bipolar membranes, (2) current‐induced membrane discharge in weakly‐acidic cation ...
Stanislav Melnikov, Elena Nosova, Olga Frolova, Victor Zabolotsky   +3 more
openaire   +1 more source

Application of monovalent selective membranes and bipolar membranes in electrodialysis: A review

Journal of Environmental Chemical Engineering
Yusuf Bicer, Nadira Salsabila
exaly   +2 more sources

Advancements in Bipolar Membrane Electrodialysis Techniques for Carbon Capture

Langmuir
Bipolar membrane electrodialysis (BMED) is a promising technology for the capture of carbon dioxide (CO2) from seawater, offering a sustainable solution to combat climate change. BMED efficiently extracts CO2 while generating valuable byproducts like hydrogen and minerals, contributing to the carbon cycle.
K. Khoiruddin, I G. Wenten, Utjok W. R. Siagian   +2 more
openaire   +2 more sources