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Adsorbents are used in medicine mainly for the treatment of acute poisoning, whereas other extracorporeal techniques based on physico-chemical principles, such as dialysis and ultrafiltration, currently have much wider clinical applications [1]. Nevertheless, there are medical conditions, such as acute inflammation, hepatic and multi-organ failure and sepsis, for which mortality rates have not ...
Adsorbents are used usually in the form of spherical pellets, rods, moldings, or monoliths with a hydrodynamic radius between 0.25 and 5 mm. They must have high abrasion resistance, high thermal stability and small pore diameters, which results in higher exposed surface area and hence high capacity for adsorption.
Adsorbents may be utilized in addition to or instead of emesis or lavage to prevent further systemic absorption of a toxicant. These agents act by adsorbing to a chemical or toxicant in the upper GI tract and facilitating its excretion via the feces. The most commonly used adsorbent is activated charcoal.
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Oct 11, 2024 · Solids that are used to adsorb gases or dissolved substances are called adsorbents; the adsorbed molecules are usually referred to collectively as the adsorbate. An example of an excellent adsorbent is the charcoal used in gas masks to remove poisons or impurities from a stream of air.
- The Editors of Encyclopaedia Britannica
The process of adsorption involves separation of a substance from one phase accompanied by its accumulation or concentration at the surface of another. The adsorbing phase is the adsorbent, and the material concentrated or adsorbed at the surface of that phase is the adsorbate. Adsorption is thus different from absorption, a process in which ...
Components from the stream are preferentially adsorbed; to demonstrate this, adsorbents change color from white to red in the animation. A small part of the exiting stream, shown in brown, is used to desorb the collected species from the low-pressure bed. The adsorbents change in color from red to white to demonstrate this.
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Apr 18, 2003 · Ralph Yang's Adsorbents provides a single and comprehensive source of knowledge for all commercial and new sorbent materials, presenting the fundamental principles for their syntheses, their adsorption properties, and their present and potential applications for separation and purification. Chapter topics in this authoritative, forward-looking ...
