Results 241 to 250 of about 634,155 (306)
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Ion exchange membrane adsorption in Donnan dialysis
Separation and Purification Technology, 2019Nitrate contamination of drinking water supplies is of acute public health concern worldwide. Donnan dialysis is a potentially advantageous physiochemical process for nitrate removal from contaminated waters.
Anna Breytus +3 more
semanticscholar +1 more source
Hydrometallurgy, 1983
The name “ion-exchange membranes” arose because the first such articles were made by preparing in sheet form the conventional organic ion-exchangers available 30 years ago. The purpose of these membranes is not to exchange ions but to transmit them in a controlled way.
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The name “ion-exchange membranes” arose because the first such articles were made by preparing in sheet form the conventional organic ion-exchangers available 30 years ago. The purpose of these membranes is not to exchange ions but to transmit them in a controlled way.
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2021
Disclosed is a cell comprising an anode, a cathode and a membrane located between the anode and the cathode, whereinthe membrane comprises an aqueous medium and a film comprising amyloid fibres. The invention further relates to said film, stacksof said cells, an electrolyte membrane, and the use of these various devices.
Le Goff, Alan +4 more
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Disclosed is a cell comprising an anode, a cathode and a membrane located between the anode and the cathode, whereinthe membrane comprises an aqueous medium and a film comprising amyloid fibres. The invention further relates to said film, stacksof said cells, an electrolyte membrane, and the use of these various devices.
Le Goff, Alan +4 more
openaire +1 more source
1992
The properties and preparation procedures of ion-exchange membranes are closely related to those of ion-exchange resins. As with resins, many types of membranes are possible with different polymer matrixes and different functional groups to confer ion-exchange properties on the product.
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The properties and preparation procedures of ion-exchange membranes are closely related to those of ion-exchange resins. As with resins, many types of membranes are possible with different polymer matrixes and different functional groups to confer ion-exchange properties on the product.
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Ion Exchange Membranes: Constructing and Tuning Ion Transport Channels
Advanced Functional Materials, 2022Ion exchange membranes (IEMs) that can selectively transport ions are crucial to a variety of applications, such as ion extraction/separation, fuel cells, redox flow batteries, and water electrolysis.
Peipei Zuo +8 more
semanticscholar +1 more source
Studies with inorganic ion-exchange membranes
Talanta, 1978The pyridinium molybdoarsenate membrane shows a response to pyridinium ions and can be used to determine the concentration of these ions in the range 10(-3)-1M. The potentials generated across the membrane are reproducible and the response time is less than 1 min. There is no interference from certain inorganic and organic ions.
S K, Srivastava +3 more
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Cellulosic ion‐exchange membranes for hemodialysis
Journal of Biomedical Materials Research, 1977AbstractThe application of cellulosic ion‐exchange membranes to hemodialysis was studied in vitro. The membranes were prepared by radiation‐grafting methacrylic acid and vinylpyridine to films of DuPont cellophane PD‐215 to produce cation‐exchange and anion‐exchange membranes, respectively.Solutions of urea, creatinine, glucose, and uric acid were ...
A N, Mollison, W F, Graydon
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1980
Methods of preparing cation- and anion-exchange membranes with low areal resistances were developed for use in lower cost desalination of seawater. Membranes of both types were prepared having the desired resistance of 1 Ω . cm or less. Preparation involved using reinforcements to strengthen polymer compositions.
Anthony Delyannis +1 more
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Methods of preparing cation- and anion-exchange membranes with low areal resistances were developed for use in lower cost desalination of seawater. Membranes of both types were prepared having the desired resistance of 1 Ω . cm or less. Preparation involved using reinforcements to strengthen polymer compositions.
Anthony Delyannis +1 more
openaire +1 more source
Electrolytic Desalting with Ion-Exchange Membranes
Nature, 1956SEPARATION of amino-acids and other substances by paper chromatography must often be preceded by the removal of inorganic salts. The common methods1 require careful supervision, and under optimal conditions a loss of 10–20 per cent of many amino-acids may occur with 50 per cent loss of arginine by conversion to ornithine2. A simplified form of desalter,
J D, BLAINEY, H J, YARDLEY
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