Resins for ion exchange

A membrane having ion-exchange groups is called an ion-exchange membrane. Use of the term ion-exchange resin for ion-exchange polymer is strongly... 

The Sepharose-based DEAE CL-6B (Pharmacia) is also a very useful resin for ion exchange of high-mol wt proteins it has a very low nonspecific adsorption of macromolecules, good flow properties, and is relatively stable to changes in ionic strength and pH. Sephadex-based lERs tend to alter volume drastically as a result of changes in ionic strength... 

Table 2 Examples of Commercial Anion-Exchange Resins for Ion-Exchange Chromatography of Proteins...

The addition of an inert solvent is usually ineffective since phase separation may occur >f40) jiyj eventually lead to the formation of reactive microgels and macroporous structures which find application, for example, in resins for ion exchange and column packings for size elusion chromatography... 

Structures of styrene, divinylbenzene, and a styrene-divinylbenzene co-polymer modified for use as an ion-exchange resin. The ion-exchange sites, indicated by R, are mostly in the para position and are not necessarily bound to all styrene units. 

McCabe-Thiele diagrams for nonlinear and more practical systems with pertinent inequaUty constraints are illustrated in Figures 11 and 12. The convex isotherms are generally observed for 2eohtic adsorbents, particularly in hydrocarbon separation systems, whereas the concave isotherms are observed for ion-exchange resins used in sugar separations. 

The product of a successful suspension polymerization is small, uniform polymer spheres. For certain appHcations, they are used directly, eg, as the precursors for ion-exchange resins or bead foams. For others, they may be extmded and chopped to form larger, more easily handled mol ding pellets. 

Ion Exchange. Ion-exchange treatment (215,216) entails elution of wastewater through a suitable resin until the available sites for ion exchange become fully occupied and the contaminated ions appear in the outflow. Treatment is then stopped. The bed is backwashed and then regenerated using an... 

Ion-exchange Resins. An ion-exchange resin is made up of particles of an insoluble elastic hydrocarbon network to which is attached a large number of ionisable groups. Materials commonly used comprise synthetic ion-exchange resins made, for example, by crosslinking polystyrene to which has been attached non-... 

Ion Exchange Resins - Spectra/Gel Ion Exchange resins are ion exchange media for use in low-pressure liquid chromatography. They are based on a polystyrene/divinylbenzene support and are available for both anion and cation exchange applications. This site will give you a reasonable... 

If two 12 ft roadways are used and all pallets are stacked 2 deep, then the warehouse would be approximately 60 ft x 80 ft. This leaves enough space at one end for a roadway. Some extra space will be needed for ion exchange resins and regenerants. 

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