Anna C. du Preez

SOLVENT EXTRACTION OF PLATINUM-GROUP METALS FROM HYDROCHLORIC ACID SOLUTIONS BY DIALKYL SULPHOXIDES

J. S. Prestón, Anna C. du Preez · Solvent Extraction and Ion Exchange · 2002 · 90 citations

Natural Sciences, Chemical Engineering, Chemistry +13

THE SOLVENT EXTRACTION OF RARE-EARTH METALS BY CARBOXYLIC ACIDS

Anna C. du Preez, J. S. Prestón · Solvent Extraction and Ion Exchange · 1992 · 88 citations

Natural Sciences, Chemistry, Analytical Chemistry +15

Separation of nickel and calcium by solvent extraction using mixtures of carboxylic acids and alkylpyridines

J. S. Prestón, Anna C. du Preez · Hydrometallurgy · 2000 · 65 citations

Engineering, Chemical Engineering, Chemistry +12

The recovery of rare earth oxides from a phosphoric acid by-product. Part 2: The preparation of high-purity cerium dioxide and recovery of a heavy rare earth oxide concentrate

J. S. Prestón, Peter M. Cole, Anna C. du Preez et al. · Hydrometallurgy · 1996 · 57 citations

Natural Sciences, Chemical Engineering, Chemistry +12

The recovery of rare earth oxides from a phosphoric acid by-product. Part 3. The separation of the middle and light rare earth fractions and the preparation of pure europium oxide

J. S. Prestón, Anna C. du Preez, Peter M. Cole et al. · Hydrometallurgy · 1996 · 52 citations

Natural Sciences, Chemical Engineering, Chemistry +11