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Ion exchange resins may be used to recover metals found in wastewater. What is Ion Exchange? Ion exchange is a water or wastewater treatment process involving the reversible interchange (switching) of ions between the water being treated and the solid resin contained within an ion exchange unit.
Ion exchange resin vs activated carbon Activated carbon has been the preferred adsorbent for gold recovery in the Western World for the past few decades. Contrastingly, Former Soviet Union (FSU) countries have always preferred ion exchange resins, mainly employing resin-in-pulp (RIP) technology . Ion exchange resins have
A process for treatment of precious metal ores in which gold is leached from an oxidized ore slurry using a thiosulfate salt lixiviant and copper catalyst. Gold and copper are subsequently loaded onto an ion exchange resin. Copper is recovered from the resin by elution with a thiosulfate solution; gold is recovered from the resin by elution with a thiocyanate colution.
exchange resins to sorb the gold from the copper-containing pregnant leach solution are broadly recognized, making ion exchange more cost efficient than other alternative routes like activated carbon. AMBERSEP™ 91419 and AMBERSEP™ 91419 XL Chelating Resins are gold-selective resins with a t-butylamine functional group.
Cyanide processing has been the mainstay of hydrometallurgical gold recovery for over a century. The perception of a cyanide issue in relation to gold recovery seems to take little account of the number of people who have been harmed by it over the past century, or that gold recovery only
AuRIX 100 ion exchange resin is ideally suited for recovery of gold from typical alkaline cyanide leach liquors having a pH of 9.0-11.5. AuRIX 100 is well suited for extraction of gold from clear solutions in the Resin-in-Solution(RIS) process and from pulps in the Resin-in-Pulp(RIP) process.
Recovery of gold with ion exchange resin 1399 l) 2) 3) In a batch type adsorption test for Au(TU)2+ using several cation exchange resins, strong acidic cation exchange resins were found to be optimum for adsorbing Au by the acidothiourea leaching method.
Ion exchange resins are used to remove dissolved particles from liquids. Therefore, functional groups are bonded to the polymer beads. These functionalized polymers adsorb particular anions or cations from the liquid and discharge others. Water treatment is the best-known and biggest field of application for ion exchange resins.
Jun 25, 2007· The separation is particularly effective from 0.5 M to 3.0 M HCl as within this range the PGMs and gold are extracted as anionic species via an ion exchange mechanism. There was no loss of resin capacity in sorption-desorption cycles for gold recovery using acidic thiourea as eluent which gave quantitative elution.
Dec 23, 2008· Ion exchange resins also require dedicated equipment but will reduce the gold content to about 1ppm. In both cases the gold will be contaminated with other metals like nickel and silver if present. And in both cases you should consider how much work is involved maintaining the equipment.
exchange resin or other suitable adsorbent is required to recover and concentrate the gold. For high concentration gold thiosulfate solutions (e.g. leaching of gravity concentrates), sulfide precipitation and copper cementation are alternative gold recovery options. However, unlike the resin technology
Cooper and Vanadium recovery Antioxidant Strong Acid Resin. Seplite LXC 501 polymeric catalyst filled in adipic acid device is specifically designed for the recovery of the copper and vanadium.It is the strong acid adsorption resin based on matrix of styrene-divinylbenzene copolymer. Product features Adipic acid,an important chemical...
Ion Exchange Resin Chambers And Systems by Serfilco International Ltd. Material: CPVC, PVC, PP. Performance: .15-15 cu. ft. capacity. For precious metal recovery: These resin systems can recover gold and other metals from plating operations easily an...
Jul 21, 2016· The ion exchange resin may be a resin with TBA groups (tributylamine groups) or any other gold-selective strong base resin. The lixiviant may be an alkaline cyanide solution e.g. a mixture of NaCN and NaOH. The elution, after adsorption (loading) of the gold onto the resin, may be done using acidic thiourea or any other suitable eluent.
Gold is recovered by incinerating the resin. Units have early payback; one cubic foot of resin can retain 70 to 100 troy ounces of gold. Heavy Metal Removal / Recovery - Recover heavy metals from metal finishing rinse water and printed circuit board manufacturing.
Recovery of tetrachloroaurate through ion exchange with Dowex 11 resin FJ. Alguacil ) Abstract The recovery of the tetrachloroaurate complex by the anionic ion exchange resin Dowex 11 has been studied. The kinetics of gold adsorption were dependent of both gold and resin concentrations and temperature.
Through an ion exchange process, the resin beads attract uranium from the solution. Uranium loaded resins are then transported to a processing plant, where U 3 O 8 is separated from the resin beads and yellowcake is produced. The resin beads can then be returned to .
using ion exchange resins Amberlyst 31, 131 & 121 main catalysts used for Bisphenol A, one of the components of polycarbonate and epoxy resins. Amberlyst 15Dry & 36Dry For the production of alkylphenols used in detergent formulations Amberlyst 35 catalyst used in the synthesis of octane improvers (petrol additives) such as MTBE, ETBE, TAME & iso-octane
In recent years, resin is replacing carbon as the gold recovery substrate of choice. SGS is the world leader in the development of this technology. The process used in resin recovery is similar to carbon, but the gold is adsorbed onto solid spherical polystyrene resin beads rather than activated carbon grains.
Gold can be effectively recovered from iodide solutions using ion exchange resin. Triiodide loading is extremely strong and may be detrimental for gold loading. Triiodide is loaded as iodine by physiosorption releasing iodide back to solution. An eluant containing NaCl and Na2SO3 is .
As one of the leading hydrometallurgy ion exchange resin manufacturers and suppliers in China, we warmly welcome you to wholesale DIscount hydrometallurgy ion exchange resin made in China here from our factory. All our customized water filtration medias are with high quality and competitive price. Contact us for free sample, pricelist and quotation.
Nov 15, 2011· Anglo Asian Mining plc has selected the Mintek-developed DOWEX™ MINIX™ ion-exchange resin for gold recovery at its Gedabek (Gädäbäy) gold-copper project in Azerbaijan. Gedabek, which is the first operating gold mine in the south-west Asian country, was officially opened and produced its first gold in May 2009.
Recovery of gold from ion exchange recovery resin 2004. Dear expert friend, I got some quantity of ion exchange resin with recovered gold from rinse in it. Is there any method to chemically treat it and recover gold from it? Thanks in advance, Joginadham Chilukuri, GM flexible circuits - Hyderabad, AP, India
Rohm and Haas ion exchange resins Ion Exchange Resins Amberjet & Amberlite. Select here your Pre-Selection. Weak Acid Cation Exchange Weak Base Anion Exchange Mixed Bed Resin ... Lenntech (European Head Office) Distributieweg 3 2645 EG Delfgauw The Netherlands Phone: +31 152 610 900 fax: +31 152 616 289
Jan 01, 2010· Ion exchange adsorption and elution for recovering gold thiosulfate from leach solutions In the presence of sulfite, Au(S 2 O 3 ) 2 3− is converted to Au(S 2 O 3 )(SO 3 ) 3−, which has a reduced affinity for strong anion exchange resins and is shown to .
Dec 18, 2017· Over the course of one or more service cycles, an IX resin will become exhausted, meaning that it can no longer facilitate ion exchange reactions. This happens when contaminant ions have bound to nearly all available active sites on the resin matrix. Put .