Separation of metal ions (Copper And Chromium) Using Poly (Hydroxamic Acid) chelating resin

Umar Harris Karis, (2005) Separation of metal ions (Copper And Chromium) Using Poly (Hydroxamic Acid) chelating resin. Universiti Malaysia Sabah. (Unpublished)


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Resins are insoluble polymeric matrix containing mobile ions that are capable of exchanging with ions in the surrounding medium. Two types of polymerization are known, which are step-reaction polymerization and chain-reaction polymerization. Poly(hydroxamic acid) chelating resin was prepared from the reaction of poly(methyl acrylate) grafted sago starch with hydroxylamine. The copolymer was obtained by free-radical initiating process which is a chain-reaction polymerization that uses an initiator, with hydroxylamine as the initiator. Such polymerization is used because the radicals produced are tolerant of many functional groups and solvents. The weight of the resin produced was 27.53 g. The resin was used for the separation of metal ions, which are copper and chromium from mixed metal ion solution that contained two different metal ions, which are Cu-Cr. The metal ion separation was done using the column method. The affinity of the resin towards copper and chromium ions can be determined from the metal ions absorption by the resin. From the experiment, it is known that the poly(hydroxamic acid) chelating resin absorbed more Cu2+ ions than Cr3+. As a conclusion the poly(hydroxamic acid) chelating resin have a higher affinity towards Cu2+ than Cr3+.

Item Type: Academic Exercise
Uncontrolled Keywords: chelating resin, Poly(hydroxamic acid), chain-reaction, polymerization, step-reaction, copolymer
Subjects: Q Science > QD Chemistry
Divisions: SCHOOL > School of Science and Technology
Date Deposited: 31 Dec 2013 03:31
Last Modified: 17 Oct 2017 05:25

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