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Insoluble ion exchange resins

Du Y, Cai F, Kong D-L et al (2005) Organic solvent-free process for the synthesis of propylene carbonate from supercritical carbon dioxide and propylene oxide catalyzed by insoluble ion exchange resins. Green Chem 7(7) 518-523... [Pg.38]

Insoluble ion exchange resins Strong wicking tendencies with some swelling action... [Pg.889]

Ion-Exchange Systems. The ion-exchange systems are useful in the controlled release of ionic (or ionizable) drugs. Polyelectrolytes are crosslinked to form water-insoluble ion-exchange resins. The drug is bound to the ionic groups by salt... [Pg.9]

Ion-exchange resins. The constituent phenolic hydroxyl groups in the insoluble phenol-formaldehyde resins react with cations of salts ... [Pg.1019]

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-... [Pg.21]

Solubility - The ion-exchange substance must be insoluble under normal conditions of use. Most ion-exchange resins in current use are high molecular weight... [Pg.380]

Before concentration, acid hydrolyzates are neutralized, most commonly with barium carbonate, although such organic bases as methyldioctylamine has been used.81 This step normally causes little loss, except by adsorption on, for example, barium sulfate,82 but the following points are of interest. Neutralization with ammonia has been recommended,83 as the neutral solution may be evaporated directly to dryness without filtration, and the ammonium sulfate formed is insoluble in methyl sulfoxide, a solvent used for trimethyl-silylation. The authors83 also found that, when hydrolyzates are neutralized with ion-exchange resins, the pH of the concentrated solutions may differ by as much as 2 units of pH. D-Fructose has been found to be epimerized by barium carbonate or pyridine, and lead... [Pg.20]

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See also in sourсe #XX -- [ Pg.420 ]



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Insoluble resins

Ion exchangers resins

Ion resin

Ion-exchange resins

Ion-exchanged resins

Resin ion-exchange resins

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