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ion exchange Applications

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    Advanced water treatment equipments for ion exchange

    Ion exchange is an exchange of ions between two electrolytes or between an electrolyte solution and a complex. In most cases the term is used to denote the processes of purification, separation, and decontamination of aqueous and other ion-containing solutions with solid polymeric or mineralic `ion exchangers`.

    By Advanced Equipment and Services, Inc. (AESINC) based in Coconut Creek, FLORIDA (USA).

  • Trislot screens for the pharmaceutical industry

    Trislot screens have many applications also in the pharmaceutical industry. Besides the classical application in water treatment systems (ion exchange, molecular sieve,... ) the screen are used for classification and in dryers/coolers. The Sintered Laminate is used in Nutsche filters for the pharmaceutical industry.

    By Trislot N.V. based in Waregem, BELGIUM.

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    Advanced water treatment equipments for deionization

    Deionized water, also known as demineralized water (DI water or de-ionized water; can also be spelled deionised water), is water that has had its mineral ions removed, such as cations from sodium, calcium, iron, copper and anions such as chloride and bromide. Deionization is a physical process which uses specially-manufactured ion exchange resins which bind to and filter out the mineral salts from water. Because the majority of water impurities are dissolved salts, deionization produces a high purity water that is generally similar to distilled water, and this process is quick and without scale buildup. However, deionization does not significantly remove uncharged organic molecules, viruses or bacteria, except by incidental trapping in the resin. Specially made strong base anion resins can remove Gram-negative bacteria. Deionization can be done continuously and inexpensively using electrodeionization.

    By Advanced Equipment and Services, Inc. (AESINC) based in Coconut Creek, FLORIDA (USA).

  • Trislot wedge wire screens for the water treatment industry

    In water treatment the main processes used are demineralization, softening, ion exchange, gravity and pressure filtration. Trislot wedge wire screens are used in these processes to collect or distribute the treated liquid, to retain the treatment media, to filter solids. The main advantages compared to perforated plate, wire mesh or other filtration media are: high efficiency, long service life, flexible design, low maintenance.

    By Trislot N.V. based in Waregem, BELGIUM.

  • Industrial water Uranium recovery & purification

    The type of Uranium mineralization and the nature of its association within a particular deposit will have a major impact on process route selection. Uranium minerals are classified according to their influence on extractive metallurgy. The presence of impurities such as Vanadium, Molybdenum, and others may dictate that ion exchange is to be employed.

    By PuriTech Ltd based in Herentals, BELGIUM.

  • Industrial water Gold and Silver

    Cyanidation is still the most widely used method to leach gold, using sodium or calcium cyanide as lixiviant. An anionic gold-cyanide complex is formed that is extractable by basic resins. Other metals present in the ore, such as silver and base metals ( copper, nickel, cobalt, zinc, iron, etc. ) are also leached in cyanide media. Selective ion exchange resins are designed to preferentially adsorb the mono-valent gold-cyanide species.

    By PuriTech Ltd based in Herentals, BELGIUM.

  • Industrial water boiler feed water

    Ion exchange is an effective, versatile means of conditioning boiler feedwater. The term “ion exchange` describes the process : as water flows through a bed of ion exchange material, undesirable ions are removed and replaced with less objectionable ones. For example, in softening processes, calcium and magnesium ions(hardness) are exchanged for sodium ions. In dealkalization, the ions contributing to alkalinity(carbonate, bicarbonate, etc.) are removed and replaced with chloride ions.

    By PuriTech Ltd based in Herentals, BELGIUM.

  • Solutions for recovering metals

    The mining industry relies on Calgon Carbon’s Granular Activated Carbon (GAC) to recover gold and other precious metals. Calgon Carbon’s ISEP® Technology is used to recover precious, rare earth and base metals, uranium, copper, nickel and zinc from ore, waste and reclaim streams. Our high-quality activated carbons have been developed and successfully proven to maximize efficiency by reducing the loss of precious metals and the consumption of carbon in three precious metal extraction techniques: Carbon-in-Leach (CIL), Carbon-in-Pulp (CIP) and Carbon-in-Column (CIC). When Ion Exchange is employed for metal recovery in leach and waste streams, Calgon Carbon’s ISEP ® system provides a continuous, consistent and high purity concentrated product while minimizing the use of chemicals, resin and wastes. Calgon Carbon’s continuous ion exchange systems are the most flexible, robust, and accepted in the industry.

    By Calgon Carbon Corporation based in Pittsburgh, PENNSYLVANIA (USA).

  • Industrial water demineralisation

    Deionized water, also known as demineralised water, is water that has had its mineral ions removed, such as cations like sodium, potassium, calcium, magnesium, iron, and anions such as chloride, nitrate, sulfate, bicarbonate and even silica. Deionization is a chemical process that uses specially manufactured ion exchange resins which exchange hydrogen ion and hydroxide ion for dissolved minerals, which then recombine to form water. Because the majority of water impurities are dissolved salts, deionization produces a high purity water that is generally similar to distilled water, and this process is quick and without scale buildup.

    By PuriTech Ltd based in Herentals, BELGIUM.

  • Industrial water Nickel Laterite

    Lateritic nickel ore deposits are surficial, weathered rinds formed on ultramafic rocks. Nickel laterites are a very important type of nickel ore deposit, they comprise 73% of the continental world nickel resources. They are growing to become the most important source of nickel metal for world demand. Nickel is a hard, silver white metal that has industrial applications related to its strength, corrosion resistance, high ductility, good thermal and electrical conductivity and catalytic properties. Its primary use is in manufacture of stainless steel, steel alloys and superalloys. The Nickel purification process is very complex of which a few are based on ion exchange, each taking care of a part of the full process cycle.

    By PuriTech Ltd based in Herentals, BELGIUM.

  • Industrial water softening

    The presence of certain metal ions in water causes a variety of problems. These ions interfere with the action of soaps, lead to build up of limescale, which can foul plumbing, boilers, heating equipment. Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water extends the lifetime of plumbing and heating equipment. Softening of low TDS ( Total Dissolved Solids ) water is done commonly with a Strong Acid Cation ( SAC ) exchange resin operating in the sodium form and regenerated with brine. PuriTech`s latest development is a very performant continuous ion exchanger, based on PuriTech`s innovative ION-IX technology which is based on true counter-current ion exchange.

    By PuriTech Ltd based in Herentals, BELGIUM.

  • Landfill lining

    GCLs have become the gold standard clay component of composite lining systems used in industrial, hazardous and municipal solid waste landfills. Used alone or in combination with a geomembrane in a composite cover system, GCLs provide significantly lower permeability, improved ease of installation, an increased amount of usable space. In many cases GCLs are more cost-effective than traditional compacted clay liners. GCLs are also not subject to deterioration from differential settlement and freeze-thaw cycles, which can damage traditional compacted clay liners. Important design considerations for GCLs in landfill caps include confining pressure, and potential for ion exchange and desiccation.

    By CETCO based in Hoffman Estates, ILLINOIS (USA).

  • Industrial water Nickel & Cobalt purification

    Cobalt is a brittle, hard transition metal with magnetic properties similar to iron. It is mainly used as an alloy with iron, nickel or other metals to produce corrosion and wear resistant products for high temperature applications (such as jet engines, gas turbines, etc.). Cobalt is normally produced as a by-product of nickel or copper mining. The purity requirements for Cobalt do not allow nickel to exceed a concentration 0.1%. Earlier, the nickel was removed by lime precipitations, but as the market specifications became more stringent, ion exchange technologies have been applied.

    By PuriTech Ltd based in Herentals, BELGIUM.

  • Industrial water Ammonia & Arsenic removal from water

    Nitrogen is a nutrient essential to all forms of life as a basic building block of plant and animal protein. Nevertheless, too much of it can be toxic. The processes used for the removal of ammonium ions from drinking waters include ion exchange. PuriTech`s ION-IX system can be broken up into 4 distinctive zones with each zone operating continuously. The resin is initially loaded with the Ammonia ions (and partially calcium and magnesium)in the adsorption zone. As the ION-IX multi-port valve rotates, the resin that has been saturated with Ammonia ions (and some calcium and magnesium ions)moves into a one-bed displacement zone with softened water to ensure hard water does not cause precipitation within the multi port valve.

    By PuriTech Ltd based in Herentals, BELGIUM.

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