Extraction and Separation of Precious Metals by a Column Packed with Divinylbenzene Homopolymeric Microcapsule Containing Tri‐<i>n</i>‐octylamine

DOI 機関リポジトリ 機関リポジトリ (HANDLE) Web Site 被引用文献6件

書誌事項

タイトル別名
  • Extraction amd Separation of Precious Metals by a Column Packed with Divinylbenzene Homopolymeric Microcapsule Containing Tri-n-octylamine
  • Extraction and separation of precious metals by a column packed with divinylbenzene homopolymeric microcapsule containing Tri‐ n ‐octylamine

この論文をさがす

説明

The separation of palladium, platinum, and gold was investigated using a column packed with divinylbenzene homopolymeric microcapsules containing tri-n-octylamine. The extraction of precious metals except platinum using the microcapsules progresses by means of the same reaction proposed in a solvent extraction system. The microcapsules also effectively extracted precious metals from an aqueous hydrochloric acid medium in the column operation. The breakthrough point is delayed in following order: platinum, palladium, and gold. Almost all TOA molecules enclosed in the microcapsules can act on the extraction reaction with precious metals, which was confirmed by the calculation of the concentration of precious metals extracted into the microcapsules based on the breakthrough curve of each precious metal. By selecting the appropriate eluent, palladium, gold, and platinum were successfully eluted from the column using an 8.0 mol/dm^3 aqueous HCI solution, a 0.1 mol/dm^3 thiourea in 0.1 mol/dm^3 aqueous HCI solution, and a 0.5 mol/dm^3 ethylenediamine in 0.1 mol/dm^3 aqueous NaOH solution, respectively. By feeding the eluent step-wise into the column in this order, the mutual separation of precious metals can be successfully achieved.

収録刊行物

被引用文献 (6)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ