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Article
Bewertung von Produktölen aus dem Hydrocracking eines Vakuumrückstands durch 1H-NMR-Spektroskopie
Different oil samples, produced by hydrocracking of vacuum residues, have been characterized by proton NMR spectroscopy. The distribution of various types of carbons and several average structural parameters h...
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Article
Ionen-Chromatographie yon Gallium, Indium und Thallium mit Anwendungen in der Erzanalyse
An optimal separation system is presented for the rarer elements Ga(III), In(III), Tl(III) and the main intergrowth elements such as Fe(III), Cu(II), Pb(II), Zn(II) etc., using the cation-exchange column Nucle...
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Article
Ionenaustausch von Chlorid, Bromid und Iodid am Anionenaustauscher Amberlit IRA 458
The distribution coefficients of Cl−, Br− and I− on the polyacryl anion-exchanger Amberlite IRA 458 are determined as function of pH. It is shown by batch and column experiments that I−-ions can be enriched from ...
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Article
Formazane als funktionelle Gruppen chelatbildender Ionenaustauscher
An arsonic acid substituted formazan is diazo-coupled to polystyrene. The resulting chelating resin is characterized by distribution coefficients, loading capacities and sorption rates for precious metals and ...