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	Ion exchange resin - Wikipedia, the free encyclopedia
		An ion exchange resin is an insoluble matrix (or support structure) normally in the form of small (1-2mm diameter) beads, usually white or yellowish, fabricated from an organic polymer substrate on the surface of which are sites with easily trapped and released ions in a process called ion exchange.
		The salt is used to recharge an ion exchange resin which itself is used to soften the water so that limescale deposits are not left on the cooking and eating utensils being washed.
		Ion exchange resins do not remove chlorine or organic contaminants from water - this is usually done by using an activated charcoal filter mixed in with the resin.
	en.wikipedia.org /wiki/ion_exchange_resin (602 words)

	Encyclopedia: Ion exchange resin
		Ion exchange is a process in which ions are exchanged between a solution and an ion exchanger, an insoluble solid or gel.
		Ion exchange is a reversible chemical reaction wherein an ion (an atom or molecule that has lost or gained an electron and thus acquired an electrical charge) from solution is exchanged for a similarly charged ion attached to an immobile solid particle.
		Ion exchange resins are classified as cation exchangers, which have positively charged mobile ions available for exchange, and anion exchangers, whose exchangeable ions are negatively charged.
	www.nationmaster.com /encyclopedia/Ion-exchange-resin (1397 words)

	Tobacco filter and fibrous ion exchange resin - Patent 4700723
		Characteristics of the fibrous ion exchange resins of the present invention are preferably brought by the ion exchange fibers reinforced with a polymer.
		The ratio of the ion exchange polymer (A) to the reinforcing polymer (B) in a mixed or composite fiber of the present invention is (A)/(B)=95/5 to 10/90, preferably 80/20 to 20/80, and especially 70/30 to 30/70.
		Ion exchange sheets, such as a paper, can be obtained by dispersing a fiber of the present invention having a ion exchange function or its mixture with other components, followed by suction filtration, pressing, and heat drying.
	www.freepatentsonline.com /4700723.html (7349 words)

	Ion exchange resin beads having aminoalkylphosphonic groups and processes for preparing them - Patent 5278193
		The ion exchange resin beads have functional groups of formula I wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, m, r and q have the meanings stated in claim 1 and which have a matrix of a cross-linked polymer wherein the level of cross-linkages is decreased in the shell area is compared to the core area.
		These ion exchange resin beads are prepared by reacting resin beads which have primary or secondary amino groups and the mentioned matrix of a cross-linked polymer with a1) a hypophosphite salt in the presence of an acid, or a2) a hypophosphorous acid and b) formaldehyde or a formaldehyde releasing compound.
		The ion exchange resin beads of the present invention have a matrix of a cross-linked polymer wherein the levels of cross-linkages is decreased in the shell area as compared to the core area.
	www.freepatentsonline.com /5278193.html (8447 words)

	Info and facts on 'Ion exchange resin' (Site not responding. Last check: 2007-09-10)
		The salt is used to recharge an ion exchange resin which itself is used to soften the water so that limescale (additional info and facts about limescale) deposits are not left on the cooking and eating utensils being washed.
		In this application, ion exchange resins are used to remove poison (Any substance that causes injury or illness or death of a living organism) ous (e.g.
		In chemistry (The science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions) ion exchange resins are known to catalyze (additional info and facts about catalyze) organic reaction (additional info and facts about organic reaction) s.
	www.absoluteastronomy.com /encyclopedia/i/io/ion_exchange_resin.htm (520 words)

	Properties of Ion Exchange Resins
		Ion exchange reactions are reversible reactions with equilibrium conditions being different for different ions.
		An ion exchange resin that is highly crosslinked is quite resistant to the diffusion of various ions through it and hence, the time required to reach equilibrium is much longer.
		The second is called internal diffusion and is the movement of ions from the surface to the interior of an ion exchange particle.
	www.rpi.edu /dept/chem-eng/Biotech-Environ/IONEX/resin.html (808 words)

	Sample processing method using ion exchange resin - US Patent 6241980 (Site not responding. Last check: 2007-09-10)
		A composition for concentration of a sample, said composition comprising an ion exchange resin enclosed within a liquid permeable vehicle, said ion exchange resin present in an amount sufficient that upon exposure to the sample, the osmolality of the sample is reduced.
		The concentration and amount of the ion exchange resin used in the method of the present invention is dependent on the type of sample being subjected to the method.
		Generally, the amount of the ion exchange resin used in the method of the present invention is in a mass to mass ratio with the sample within the range of about 1:1 to about 1:20, with a preferred range of about 1:5 to about 1:15.
	www.patentstorm.us /patents/6241980.html (7183 words)

	Porous cemented ion exchange resins wherein the beads are cohered to one another in polymer matrix - Patent 4339548
		Generally, when an ion exchange resin is used for ion exchange or catalytic reactions, the surface area and the reaction rate of the ion exchange resin increase in proportion to the decrease in effective particle diameter of the ion-exchange resin.
		When ion-exchange resin particles are cohered by the use of a polymeric composition possessing a hydrophilic group according to the present invention, use of excessive amounts of polymeric composition proves disadvantageous because the composition so used lowers the ion-exchange reaction rate despite the hydrophilicity of the cohering film.
		For certain specialized applications, it is advantageous that an entire ion exchange resin bed be cemented into a single unit, or that a portion of such a bed be so cemented, as for example a thin wafer at the bottom of a resin bed which acts as a bottom screen for the bed.
	www.freepatentsonline.com /4339548.html (1842 words)

	Ion Exchange
		ION Exchange technology has been in limited use for years, primarily for the generation of de-ionized water.
		Ion exchange resin beads (thousands per cubic inch) are placed in a pressure vessel to makeup the ion exchange resin bed.
		Ion exchange columns are at the center of our reliable PLC based flow control system that can be either semi-automatic or a fully automated operation.
	www.lhwinc.com /ionexchange.htm (533 words)

	Articles - Resin (Site not responding. Last check: 2007-09-10)
		Resin as produced by most plants is a viscous liquid, typically composed mainly of volatile fluid terpenes, with lesser components of dissolved non-volatile solids which make resin viscous and sticky.
		The hard transparent resins, such as the copals, dammars, mastic and sandarac, are principally used for varnishes and cement, while the softer odoriferous oleo-resins (frankincense, elemi, turpentine, copaiba) and gum resins containing essential oils (ammoniacum, asafoetida, gamboge, myrrh, and scammony) are more largely used for therapeutic purposes and incense.
		Ion exchange resin is another important class with application in water purification and catalysis of organic reactions.
	www.sinoz.com /articles/Resin (800 words)

	4-48 Ion Exchange
		Ion exchange removes ions from the aqueous phase by exchange with counter ions on the exchange medium.
		Ion exchange removes ions from the aqueous phase by the exchange of cations or anions between the contaminants and the exchange medium.
		Ion exchange materials may consist of resins made from synthetic organic materials that contain ionic functional groups to which exchangeable ions are attached.
	www.frtr.gov /matrix2/section4/4-49.html (683 words)

	Watersurplus.com - Mixed Bed Ion Exchange Resin Market Overview (Site not responding. Last check: 2007-09-10)
		Ion Exchange is the process of purifying a liquid solution by passing it through a bed of ion exchange resin.
		An exchange of ions between the liquid and the solid ion exchange resin takes place and is controlled by the functional group attached to the resin matrix.
		The exchange of ions is reversible in most instances by passing a highly concentrated regenerant solution through the bed of ion exchange resin.
	www.watersurplus.com /marketMixedBed.cfm (720 words)

	Diphonix® Ion Exchange Resin
		Diphonix® resin is constructed of a polystyrene/divinylbenzene matrix in a spherical bead form.
		The resin is ployfunctional, containing diphosphonic and sulfonic acid groups bonded to the polymer matrix.
		Diphonix® resin may also drive the targeted metal concentrations lower than other resins, allowing discharge limits and process quality criteria to be met.
	www.eichrom.com /products/info/diphonix_resin.cfm (435 words)

	QualiChem, Inc. - Product Lines - Ion Exchange Resins
		This resin is used for softeners and strong acid cation demineralizers.
		Highly efficient mixed bed resin consisting of a 1:1 chemically equivalent mixture of strong base anion exchange resin in OH form and a strong acid cation exchange resin in H form.
		Premium grade mixed bed resin consisting of a 1:1 chemically equivalent mixture of strong base anion exchange resin in OH form and a strong acid cation exchange resin in H form.
	www.qualichem.com /resin.html (500 words)

	Savannah River Site Reactor Basin Ion Exchange Resin Bench Scale Studies
		Disposal of the spent resins is often an economic problem because of the large volumes of resin produced and the instability of the resin.
		Spent ion exchange resin from aqueous treatment operations is an example of a stream that can be common to all categories because it is used in many different applications and is usually organic.
		Ion exchange resins are used in several processes at the SRS to remove both hazardous and radioactive constituents from solutions or sludges.
	www.srs.gov /general/pubs/fulltext/tr95394r1/tr95394r1.html (5445 words)

	Portable Plating Equipment, Portable "PLATING - VAC", Portable Plating Tanks, Portable Ion Exchange Resin ...
		This portable resin unit, with all powder coated SS frame and CPVC/PVC components, was designed for operation in a harsh chloride environment.
		The unit was designed for frequent replacement of ion exchange resins to reduce precious metal liability in a captive plating shop.
		Resins, in (3) 1/3 cubic ft. canisters per chamber, can be easily removed and replaced with new resins when metal breakthrough occurs.
	portable-solutions-ltd.com /portable_plating_equipment.htm (491 words)

	Exchange ion exchange resin
		Endless research by us was done to find information on ion exchange resin to pick the best places for you to go to.
		I'm sure that you'll be pleased with all the research we've done for you about ion exchange resin and pick out just a couple of the very best sites for you to visit.
		While the growth of online commerce accelerates ion exchange resin retailers develop more experience in providing services and goods Expanding their market and making more sales means that ion exchange resin retailers have over traditional ion exchange resin enterprises is the reduced cost of conducting business operations..
	www.shopezy-in1.com /exchange/ion-exchange-resin.htm (374 words)

	Ion Exchange Resins: Products (Site not responding. Last check: 2007-09-10)
		Many resins of this very special product line have demonstrated their efficiency for many years, but we are constantly improving and bringing new, superior products to this particular market segment.
		Duolite® phenolic resins have a unique capacity for the adsorption of large organic molecules in the food and chemical industries, combined with outstanding osmotic stability.
		Developed in collaboration with the power industry on three continents, these resins of exceptionally high purity are used for a number of applications in nuclear power plants.
	www.rohmhaas.com /ionexchange/products.htm (421 words)

	Ion Exchange Resin Applications
		Ion exchange resins are synthetic polymers capable of combining or exchanging ions in a surrounding solution and are used primarily for deionizing water or for chromatography of organic molecules.
		Most resins are based on styrene copolymerized with Divinylbenzene.
		Conventional ion exchange resins include a range of anion (chloromethylated, aminated) and cation resins (sulfonated) for multi-bed demineralization, mixed-bed condensate polishing, as well as nuclear and other specialty applications.
	www.dow.com /specialtymonomers/app/iexresin.htm (181 words)

	ion-exchange resin -- Encyclopædia Britannica (Site not responding. Last check: 2007-09-10)
		Only rarely are ion exchangers used in stepwise procedures, in which the resin is mixed into a container of solution and then removed for further treatment.
		Ion exchange is a method of separation based on differential absorption and elution (washing off) of substances from certain solid supporting materials, often powdered or finely divided materials held in glass tubes.
		The openness of the resin structure, however, depends on the degree of its swelling and on its water content.
	www.britannica.com /eb/article-9042691 (821 words)

	Ion exchange resin - Education - Information - Educational Resources - Encyclopedia - Music
		An ion-exchange resin is an insoluble matrix (or support structure), normally in the form of small (1-2mm diameter) beads, fabricated from an organic polymer substrate on the surface of which are sites with easily trapped and released ions.
		The resin can be recharged by washing it with a solution containing no magnesium and calcium ions, but a high concenration of sodium ions (e.g.
		The salt is used to recharge an ion-exchange resin used to soften the water so that limescale deposits are not left on the cooking and eating utensils being washed.
	education.music.us /I/Ion-exchange-resin.htm (642 words)

	Ion-Exchange Resin Technology
		The resin then basically “exchanges” one of their ions, for an ion of soluble metal.
		The exchange process also has the capability of treating some of the remaining cyanide that still may be present.
		This resin is good for recovering several different metals not in a cyanide solution, such as tumbling wastes, and washing areas.
	www.gocctech.com /default2/resntech.htm (854 words)

	Durpro - Resins
		Indion Resins offers a complete range of gel, isoporous and macroporous cation and anion exchange resins for water and waste water treatment as well as speciality applications.
		Indion GS 400 is a strong base Type II anion exchange resin based on cross linked polystyrene matrix with benzyl dimethyl ethanol amine functional groups.
		It is an anion exchange resin in polyiodide form, and is however, a contact disinfectant, and not a conventional ion exchanger.
	www.durpro.com /resins.htm (328 words)

	AMMONIA-EXTRACT? 100% Zeolite Ion Exchange Resin (Site not responding. Last check: 2007-09-10)
		At a low pH, the non-toxic ammonium ion is prevalent while at a higher pH (greater than a pH of 7.0), the toxic ammonia molecule is prevalent.
		Since the ammonium ion is actually removed from the water and the equilibrium reaction, the reaction must shift, and a toxic ammonia molecule changes into a non-toxic ammonium ion.
		resin actually removes toxic ammonia from the water by removing the ammonium ion with the exchange of sodium ions, thereby forcing the ammonia to convert to the non-toxic form.
	www.sure-life.com /products/ammoextr.htm (350 words)

	Ion Exchange - Resin Types
		Resins can be broadly classified as strong or weak acid cation exchangers or strong or weak base anion exchangers.
		In an ion exchange process, cations or anions in a liquid solution (usually aqueous) replace dissimilar and displaceable ions of the same charge contained in the ion exchange resin.
		After exhaustion, the resin is converted back to the hydrogen form (regenerated) by contact with a strong acid solution, or the resin can be convened to the sodium form with a sodium chloride solution.
	www.separationprocesses.com /Adsorption/AD_Chp04a.htm (514 words)

	WECSA - Nutrient Adsorption Kinetics of Ion Exchange Resin Capsules
		Nutrient Adsorption Kinetics of Ion Exchange Resin Capsules: A Study With Soils of International Origin.
		A method based on use of ion exchange resin capsules was evaluated for simultaneous extraction of plant available nutrients (N, P, K, Ca, Mg, and Na) to determine its utility as a general soil testing procedure for soils of world-wide origin.
		Suppressed ion chromatography was suitable for simultaneous determination of five cations in extracts from the resin capsules.
	www.wecsa.com /Refrence/Kinetics.htm (280 words)

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