Au( III ) extraction using ketone compounds with physical properties superior to current commercial extractants

Au( III ) extraction using ketone compounds with physical properties superior to current commercial extractants
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使用物理性质优于目前商业萃取剂的酮化合物萃取 Au( III )

DOI:
10.1002/aic.17214
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发表时间:
2021
期刊:
影响因子:
3.7
通讯作者:
Kota Miyake
Kota Miyake
中科院分区:
工程技术3区
文献类型:
--
作者:
T. Oshima;Kota Miyake

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二丁基卡必醇(DBC)和甲基异丁基酮(MIBK)可商购获得,用于通过离子溶剂化从酸性氯化物介质中萃取Au(III)。这些萃取剂显示出高的Au(III)可萃取性,但是它们的物理性质在萃取过程中具有缺点。在这项研究中,Au(III)的萃取使用一系列的脂肪酮类化合物进行了研究,以找到一种新的萃取剂与传统的萃取剂相比,具有优越的性能。这些酮化合物显示出理想的Au(III)萃取性,与那些轴承较短的脂肪链显示出较高的萃取性。此外,它们的Au(III)萃取能力超过了工业要求。与商业萃取剂相比,这些化合物还具有改善的金属加工性能,即在水中的溶解度较低,粘度较低,闪点较高。代表性的萃取剂2-壬酮相对于各种金属离子选择性地萃取Au(III)。用2-壬酮萃取的金通过使用草酸还原而定量回收为金属金。
Dibutyl carbitol (DBC) and methyl isobutyl ketone (MIBK) are commercially available for the extraction of Au(III) from acidic chloride media through ion solvation. These extractants show high Au(III) extractability, but their physical properties have drawbacks in extraction processes. In this study, Au(III) extraction using a series of aliphatic ketone compounds was studied to find a novel extractant with advantageous properties compared with conventional extractants. These ketone compounds showed desirable Au(III) extractability, with those bearing shorter aliphatic chains showing higher extractability. Furthermore, their Au(III) extraction capacities exceeded industrial requirements. These compounds also had improved properties for metal processing compared with commercial extractants, namely, lower solubility in water, lower viscosity, and high flash points. A representative extractant, 2‐nonanone, selectively extracted Au(III) over various metal ions. Gold extracted with 2‐nonanone was recovered quantitatively as metallic gold by reduction using oxalic acid.
DOI: --
发表时间: 2017
期刊:
影响因子: --
作者:
Naoki Matsuo;Tatsuya Oshima;Yoshinari Baba;Noriyasu Otsuki
通讯作者: Noriyasu Otsuki
在盐酸介质中使用环戊基甲基醚萃取金 (III)
DOI: 10.15261/serdj.24.89
发表时间: 2017
期刊: Solvent Extraction Research and Development, Japan
影响因子: --
作者:
Tatsuya OSHIMA;Naoki OHKUBO;Iori FUJIWARA;Takashi HORIUCHI;Takao KOYAMA;Kaoru OHE;Yoshinari BABA
通讯作者: Yoshinari BABA