Related Experiment Video
Updated: Aug 2, 2026

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
Flotation of metal-loaded clay anion exchangers. Part I: the case of chromates
N K Lazaridis1, K A Matis, M Webb
1Department of Chemistry, Aristotle University, Thessaloniki, Greece. nlazarid@chem.auth.gr
Abstract:
Synthetic hydrotalcite-like layered materials are known for their ability to remove anions, like the chromates. These sorbents usually exist in powder form, thereby exhibiting high surface area and rapid kinetics for adsorption, but presenting appreciable problems in the subsequent solid/liquid separation process. Almost complete removals were obtained in this paper, from batchwork dispersed-air flotation in presence of a flocculant. Due to the experienced difficulty of flotation of thermally activated (at 500 degrees C) hydrotalcite metal-loaded particles, the application of various surfactants was studied. Continuous-flow laboratory runs certified also the effectiveness of this combined process of sorptive flotation, a promising innovative treatment technology.
Related Concept Videos
Common Ion Effect
Precipitation of Ions
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Qualitative Analysis
For instance, group IV...
Extraction: Advanced Methods
Ion Exchange
Ion-Exchange Chromatography

