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The Recovery of a Rhodium-Containing Catalyst by Various New Silica-Based Amine Ion Exchangers

✍ Scribed by Jurjen Kramer; Arjen Scholten; Willem L. Driessen; Jan Reedijk

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 135 KB
Volume: 2002
Category: Article
ISSN: 1434-1948
DOI: 10.1002/1099-0682(200206)2002:6<1488::aid-ejic1488>3.0.co;2-#

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✦ Synopsis

Various mono-, di-, and triamine ligands have been successfully attached to an inert silica backbone. Their efficiency in the recovery of the model catalyst RhCl 3 has been thoroughly investigated. Correlation of the distribution coefficients for Rh 3+ as a function of the pH with recovery experiments, shows a subtle balance between the stability of the ligandto-metal complexes and the elution efficiency. Rhodium ion

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✍ Jurjen Kramer; Arjen Scholten; Willem L Driessen; Jan Reedijk 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 200 KB

Two silica-based chelating ion exchangers have been synthesised for the recovery of the model catalysts RhCl 3 •3H 2 O and RhCl(PPh 3 ) 3 . The N,S-donor ligands 2-aminocyclopentene-1-dithiocarboxylic acid and 4-amino-3-methyl-1,2,4-triazole-5-thione have been attached to the bifunctional spacer (3-