Optimization of Large Scale Dibuthyldithiocarbamate Synthesis by Experimental Design and Application as Extractant for Gadolinium(III)
Diana Hendrati1, Erianti Siska Purnamasari2, Syulastri Effendi3, Uji Pratomo4, Santhy Wyantuti5
1Diana Hendrati, Department of Chemistry, Faculty of Mathematics and Science, University of Padjadjaran, Jalan Raya Bandung Sumedang West Java, Indonesia.
2Erianti Siska Purnamasari, Department of Chemistry, Faculty of Mathematics and Science, University of Padjadjaran, Jalan Raya Bandung Sumedang West Java, Indonesia.
3Syulastri Effendi, Department of Chemistry, Faculty of Mathematics and Science, University of Padjadjaran, Jalan Raya Bandung Sumedang West Java, Indonesia.
4Uji Pratomo, Department of Chemistry, Faculty of Mathematics and Science, University of Padjadjaran, Jalan Raya Bandung Sumedang West Java, Indonesia.
5Santhy Wyantuti, Department of Chemistry, Faculty of Mathematics and Science, University of Padjadjaran, Jalan Raya Bandung Sumedang West Java, Indonesia.
Manuscript received on 02 August 2019 | Revised Manuscript received on 25 August 2019 | Manuscript Published on 05 September 2019 | PP: 38-41 | Volume-8 Issue-2S7 July 2019 | Retrieval Number: B10090782S719/2019©BEIESP | DOI: 10.35940/ijrte.B1009.0782S719
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The unique physical and chemical properties of Gadolinium (Gd) promote an indispensible number of its application for crucial technologies. In order to satisfy the demands of high purity, the various methods are used to separate Gd from other rare earth elements, in which a solvent extraction provides a simple separation method for these elements. However, an optimization of big scale is consequent for the solvent consumption. To overcome such a problem as a contribution in green chemistry, hereby we study the big scale synthesis optimization of dibuthyldithiocarbamate (DBDTC) by full factorial experimental design and the extraction study for Gd(III). This research start with preparing design of experiment for ligand synthesis, then perform the process of synthesis and extraction of Gd(III) according to the design of experiment. The result of synthesis and extraction were characterized by various spectroscopy methods. The highest Scale up ligand synthesis of DBDTC on this research is 20-fold times with 80.03% yield and 1.25% precision. The result shows that the optimal condition for Gd-DBDTC extraction are at pH 6, the mol ratio of gadolinium and ligand is 1:4, and 60 minutes extraction time with 76.52% yield. Therefore, the synthesis of dibuthyldithiocarbamate ligand based on the experimental design can be developed for optimization of large-scale synthesis with high Gd(III) extraction yield.
Keywords: Terms: Design of Experiment, Dibuthyldithiocarbamate, Gadolinium, Solvent Extraction, Rare-Earth Elements.
Scope of the Article: Bio-Science and Bio-Technology