We demonstrate a simple strategy to either prevent or enhance hydroxide incorporation in nanocrystalline solid-state metathesis reaction products prepared in ambient environments. As an example, we show that ZnCO3 (smithsonite) or Zn₅(CO₃)₂(OH)₆ (hydrozincite) forms extremely rapidly, in less than two minutes, to form crystalline domains of 11 ± 2 nm and 6 ± 2 nm, respectively. The phase select...

The thermal decomposition of smithsonite (ZnCO3) was studied to obtain a universal kinetic description the process applicable range reaction conditions. A synthesized ZnCO3 subjected...

It is difficult to separate smithsonite from quartz with metal ion activation through flotation using sodium oleate (NaOL) as the collector. The inevitable Zn2+ in process of zinc oxide ore makes separation and more difficult. Thus, this study investigated use phytic acid (PA) a depressant Zn2+-activated while utilizing Microflotation tests indicated that could selectively inhibit without affec...

Submitted: Jul 19, 2013; Accepted: Sep 3, 2013; Published: Sep 11, 2013 Abstract: The study of isotopic ratios of oxygen and carbon has gained importance to determine the origin of ore bearing fluids, carbon origin and also to determine the formation temperature of non-sulfide lead and zinc minerals. In order to determine the origin of fluids and carbon existing in zinc carbonate minerals in Ch...

ABSTRACT. The solubility of low-grade zinc ores with a selective leaching environmentally friendly reagent has become focus great interest since and its compounds have found wide application. For this purpose, lactic acid was used to investigate the kinetics smithsonite ore obtained from Kayseri region. effects particle size (137.5-725 µm), concentration (0.5-5 M), solid/liquid ratio (0.5/250-3...