Purolite specialty adsorbents are solid copolymers with highly porous structures designed to adsorb and desorb a wide variety of complex molecules and structures in a range of environments.

They adsorbents are designed to provide high capacity and target selectivity to enhance purification. Significant productivity gains can be relalised by matching the right adsorbent with the system to be purified.

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While ordinary commercial styrene-based sulphonic acid resins may often be used for chemical reactions catalysed by the H+ or M+ ions, faster process times, better yields and higher product purity may be obtained by using a properly designed and purified catalyst . Purolite catalyst resins are supplied either completely water-swollen, or dried to specification.

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The Purolite® range of chelating resins covers lead, copper, zinc, aluminium, cadmium, nickel, cobalt, magnesium, barium, strontium, iron and mercury.
The use of Purolite® chelation resins covers the large industrial uses as well as the small cartridge based units used in spark erosion type services.

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Purolite "Separlite" ion exchange resins for chromatography are high quality crosslinked poly(styrene)-based cation and anion exchangers with closely sized spherical bead form, suitable for separations which depend on relatively small differences of affinity of the materials being chromatographed. They are designed mainly for use in ion exchange columns and industrial plant. They are not for capillary use in e.g. HPLC equipment.

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Purolite ready to use mixed beds are specially prepared high quality resin mixtures designed for direct purification of water. The ratio of component resins has been specifically tailored to provide high capacity. Performance, of the ready to use mixed bed, will depend on the application. Several of the mixed beds are available with indicators which facilitate ease of operation where a simple visual indication of exhaustion is desired.

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Purolite® nuclear grade strong base anion (SBA) resins are designed for polishing high purity coolant water in primary and secondary circuits of nuclear power plants. These resins have higher capacity, high mechanical strength and are more chemically stable than standard resins. They can be used as stand-alone products or mixed in chemical equivalent blends with Purolite® strong acid cation (SAC) nuclear grade resins to form a range of nuclear grade mixed bed resins.

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Purolite® nuclear grade strong acid cation (SAC) resins are designed for polishing high purity coolant water in primary and secondary circuits of nuclear power plants. These resins have higher capacity, high mechanical strength and are more chemically stable than standard resins. They can be used as stand-alone products or mixed in chemical equivalent blends with Purolite® strong base anion (SBA) nuclear grade resins to form a range of nuclear grade mixed bed resins. Several SAC resin products are available in natural lithium 6 or a high purity lithium 7 form.

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The polishing mixed bed resins are of the highest product quality to insure optimum performance. The component resins of Purolite® nuclear grade mixed bed resins are primarily combined in ratios of 1:1 equivalence to treat for maximum exchangeable capacity. Other ratios are available for high amine and all volatile treatment (AVT) circuits. Contact Purolite for additional details.

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Purolite manufacture the widest range of polystyrenic,strong acid cation gel exchange resins. These are used in softening and demineralisation of water and in other specialist applications. The products offer high physical strength, and efficient operation over a wide range of operating conditions.

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Macroporous strong acid cation exchangers, from Purolite, have a unique porous structure providing high regeneration efficiency, resistance to osmotic shock and good kinetics. The homogeneous structure ensures good operating performance when treating solutions containing inorganic salts, including those of high molecular weight, and also those solutions containing nitrogenous compounds such as high molecular weight amines. A matrix with its high porosity ensures excellent reversible removal of colloids, suspended solids, and any cations of higher molecular weight.

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Purolite Strong-Base Anion (SBA) exchanger containing Type-II quaternary ammonium groups are used for dealalization, deionization, demineralization, desilicizers and organic removal. SBA's have excellent operating capacity and good kinetics even when regenerant levels are comparitively low.
Specially tailored size grades may be used with excellent results in most of the usual ion-exchange column configurations.

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Gel Type Polyacrylic Weak Acid Cation exchanger (WAC). The functional carboxylic groups give high chemical efficiency in many applications, especially for the removal of bicarbonate alkalinity in water treatment and for treating aqueous organic solutions.

The major use of WAC is in the dealkalization and softening of waters to resuce the ionic load on the subsequent strong acid resin bed. Weak Acid Cation resins are increasingly being used in special applications including treatment of waste water streams in order to reduce environmental pollution

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Gel-type anion exchange resin with an acrylic matrix ensures excellent chemical and thermal stability, resistance to attrition and osmotic shock. These properties make the resin ideal for use in the pharmaceutical, chemical, and food processing industries, for the neutralization of strong acids and for other processes.

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Purolite ion exchange resins for ultra-pure water are specially manufactured to meet the exacting needs of the electronics industry for wafer and microchip production requiring the highest possible water quality (<1 ppb Total Organic Carbon (TOC) and >18.2 MΩ·cm resistivity, with minimum rinse times), while eliminating contamination of the high purity circuits when ion exchange resin is first installed.

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Purolite resins used in drug formulations as API’s or excipients. They meet the demands of the American (USP), European (Ph.Eur.), British (BP) and Japanese (JP) pharmacopoeias.Drug Master Files are held for each, single, listed pharmaceutical product manufactured in Purolite’s facilities, while resins used in extraction and purification processes, or for the production of water for injectables, meet the requirements of both the US Food and Drug Administration (FDA) and the European Union.

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Purolite® is at the forefront in meeting the new challenges of purifying water for potable use. We continue to develop specialized ion exchange resins and adsorbent solutions focused on reducing waste and operating costs. The wide variety of contaminants needing removal often requires a customized approach. Some contaminants are removed by relying largely on the ion exchange properties of our resins (e.g. nitrate and uranium) while others (e.g. perchlorate and TOC) rely on the combination of unique ionic, adsorptive and hydrophobic characteristics of our specialty resins.

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The Microlite series of premixed powdered ion exchange resin-fiber products were developed to answer the needs of the power industry, and other primary users of powdered ion exchange resin/fiber products.

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