• cation excha
  • The softener comprises Steel /FRP pressure vessels containing a bed of cation exchange resin, a regenerating system and control valves. (environmental-expert.com)
  • A cation exchange resin, suitable for use as a membrane in electrolysis cells, comprising a perhalogenated fluorine containing hydrocarbon polymeric substrate with pendant active side chains containing dicarboxylic acid groups or their derivatives, and method of preparation thereof. (google.com)
  • 2. A cation exchange resin according to claim 1 wherein the molar ratio of the active groups to the vinyl groups is in the range 1:1 to 1:3. (google.com)
  • 3. A cation exchange resin according to claim 1 wherein the perhalogenated fluorine-containing hydrocarbon polymeric substrate is perfluorinated. (google.com)
  • 7. A cation exchange resin according to claim 1 wherein the active group is a dicarboxylic acid, or a derivative thereof group, having a general formula represented by ##STR4## where X' and X" are independently selected from the group consisting of hydrogen, fluorine, chlorine, an alkyl group and a halogenated alkyl group. (google.com)
  • 9. A cation exchange resin according to claim 1 wherein the said vinyl group is derived from an aliphatic vinyl monomer. (google.com)
  • 11. A cation exchange resin according to claim 10 wherein the vinyl group is derived from tetrafluoroethylene. (google.com)
  • calcium
  • Hard water contains calcium and magnesium ions that interfere with action of soap and contribute to the buildup of a scale or film of alkaline mineral deposits in household and industrial equipment and pipes. (wikipedia.org)
  • insoluble
  • Among these compounds a number of insoluble hydroxides and metal salts' 7 ' 8 ' have been investigated to separate alkali ions. (docplayer.com.br)
  • meta-, and para-ethyl styrenes, vinyl naphtha- The resins of this invention are the reaction lene, vinyl anthracene, and the homologues of products of a tertiary amine and an insoluble, the above. (google.com.au)
  • The resins are, therefore, insoluble, aroof the total number of moles of hydrocarbon emmatic, cross-linked vinyl copolymers containing ployed are those of the monovinyl hydrocarbon. (google.com.au)
  • beads
  • Ion exchange resins are usually designed as granules, beads, or sheets. (caldic.com)
  • Our DOWEX™ MARATHON™ C (Na form) resin is perfect for institutional applications and features uniform beads that exhibit faster kinetics than conventionally sized resins and helps improve regeneration efficiency and higher operating capacity. (dow.com)
  • The uranium is recovered at the surface onto resin beads by ion exchange. (wikipedia.org)
  • The stationary phase is a resin composed of beads, usually of cross-linked agarose, packed into a cylindrical glass or plastic column. (wikipedia.org)
  • 4. Column: The column is a glass or plastic cylinder packed with beads of resin and filled with buffer solution. (wikipedia.org)
  • A glass frit at the bottom of the column retains the resin beads in the column while allowing the buffer and dissolved proteins to exit. (wikipedia.org)
  • chlorine
  • Few ion-exchange resins remove chlorine or organic contaminants from water - this is usually done by using an activated charcoal filter mixed in with the resin. (wikipedia.org)
  • At the cathode, 2e− + 2 H2O → H2 (g) + 2 OH− while at the anode, H2O → 2 H+ + ½ O2 (g) + 2e− or 2 Cl− → Cl2 (g) + 2e− Small amounts of hydrogen gas are generated at the cathode and small amounts of either oxygen or chlorine gas (depending on composition of the E stream and end ion exchange membrane arrangement) at the anode. (wikipedia.org)
  • Some applications of chlorine include PVC, disinfectants, and solvents. (wikipedia.org)
  • selectively
  • The ion exchange resins, drugs, and coatings, and methods for preparing drug-resin complexes, for coating of the complexes, and for selectively modifying the preparation's dissolution profile through blending and/or degree of coating, are disclosed and exemplified in U.S. Pat. (google.com.au)
  • purification
  • Sorption of different substances from air and applications of fibrous ion exchangers for air purification from substances of different natures (acid, base, neutral substances, water vapors) is a most important field for their practical use. (springer.com)
  • Ion exchange resins are widely used in different separation, purification, and decontamination processes. (caldic.com)
  • Our world-class IX resins serve applications as diverse as industrial water softening, pharmaceutical formulations, sweetener purification, mining and more. (dow.com)
  • It incorporates in its water purifiers a combination of purification technologies, e.g. reverse osmosis, electronics-grade ion-exchange resins, microfiltration, ultrafiltration, degassing, ultraviolet photooxidation and electrodeionization. (wikipedia.org)
  • exchangers
  • Ion-exchange on organic resins ' ' received a great deal of attention, but these exchangers are very susceptible to radiation damage and therefore are unsuitable for processing highly radioactive solutions. (docplayer.com.br)
  • So, more recently, the emphasis has been given to mineral exchangers' 6 ' 9-1^' and particularly to the development of synthetic inorganic ion-exchangers. (docplayer.com.br)
  • The chapter is a review covering the most important aspects of fibrous ion exchangers: syntheses, physical chemical properties, equilibria and kinetics of sorption processes, and possible and real fields of their applications. (springer.com)
  • Advantages and problems connected with fibrous ion exchangers are considered in the chapter. (springer.com)
  • Soldatov VS, Shunkevich AA, Sergeev GI (1988) Synthesis, structure and properties of new fibrous ion exchangers. (springer.com)
  • Soldatov VS, Elinson IS, Shunkevich AA et al (1996) Air pollution control with fibrous ion exchangers. (springer.com)
  • Soldatov VS, Pawlowski L, Wasag H et al (1996) Prospects of fibrous ion exchangers in water pollution control. (springer.com)
  • wherein
  • 29. The process according to claim 28, wherein said treatment of said adsorbed perchlorate resin with said first quantity of elution water and said first eluted resin with said second quantity of elution water constitutes a continuous process. (patentsencyclopedia.com)
  • 31. The process according to claim 28 wherein said amphoteric ion-exchange resin has a resin first volume and combined said first quantity and second quantity of said elution water has a total volume of about 1 to 10 times said resin first volume. (patentsencyclopedia.com)
  • 32. The process according to claim 31, wherein said total volume of elution water is about 2 to 5 times said resin first volume. (patentsencyclopedia.com)
  • water
  • Resin-type ion exchange devices have many uses such as the softening of water, deionization of sugar compounds and processing of protein complexes. (google.com)
  • Highly swellable water-soluble poly(ethylene oxide) resins that allow unique drug delivery solutions for controlled release systems, abuse deterrence, osmotic systems, mucosal bioadhesives and more. (dow.com)
  • The goal is to produce water fit for a specific purpose, such as fulfilling the requirements of chemical and industrial applications. (caldic.com)
  • Should you have any questions regarding ion exchange resins or are you curious about what Caldic can offer in terms of water treatment ? (caldic.com)
  • The salt is used to recharge an ion-exchange resin, which itself is used to soften the water. (wikipedia.org)
  • Sulfonates are key groups in ion exchange resins used in water softening. (wikipedia.org)
  • One important aspect in the water treatment application is that some types of EDI needs to have feed water that is free from CO2, as well as other dissolved gasses, since these put unnecessary strain on the EDI unit and will reduce performance. (wikipedia.org)
  • Low current efficiencies indicate water splitting in the diluate or concentrate streams, shunt currents between the electrodes, or back-diffusion of ions from the concentrate to the diluate could be occurring. (wikipedia.org)
  • The tricalcium phosphate in bone char can be used to remove fluoride and metal ions from water, making it useful for the treatment of drinking supplies. (wikipedia.org)
  • The resin has a higher affinity for highly charged countercations, e.g., by Ca2+ in the case of water softening. (wikipedia.org)
  • electrodialysis
  • Because the quantity of dissolved species in the feed stream is far less than that of the fluid, electrodialysis offers the practical advantage of much higher feed recovery in many applications. (wikipedia.org)
  • The overall result of the electrodialysis process is an ion concentration increase in the concentrate stream with a depletion of ions in the dilute solution feed stream see video. (wikipedia.org)
  • In application, electrodialysis systems can be operated as continuous production or batch production processes. (wikipedia.org)
  • concentration
  • The point at which this state is reached can be estimated generally from the concentration of the objectionable ions found in the fluid to be processed, the volume of fluid to be processed passing through the ion exchange resin device, the relative chemical activities of the objectionable and less objectionable ions and other factors. (google.com)
  • suitable
  • The neutralized polyacrylic acid gels are suitable to obtain biocompatible matrices for medical applications such as gels for skin care or skin disease treatment products. (wikipedia.org)
  • electrodeionization
  • There are also EDI units that are often referred to as continuous electrodeionization (CEDI) since the electric current regenerates the resin mass continuously. (wikipedia.org)
  • form
  • The main disadvantage is its microcrystalline form, making difficult its use for chromatographic ions separation on columns. (docplayer.com.br)
  • bind
  • In the most common FPLC strategy, ion exchange, a resin is chosen that the protein of interest will bind to the resin by a charge interaction while in buffer A (the running buffer) but become dissociated and return to solution in buffer B (the elution buffer). (wikipedia.org)
  • The proteins of interest bind to the resin while other components are carried out in the buffer. (wikipedia.org)