Sentence examples for ferric leaching from inspiring English sources
Research on the chemistry and electrochemistry of the ferric leaching of sulfide minerals and an electrochemical mechanism for ferrous iron oxidation based on chemiosmotic theory will be presented and reviewed.
For the case of pyrite, the primary attack of the sulfide mineral is a chemical ferric leach producing ferrous iron.
The atmospheric ferric leach pilot plant was designed, constructed and operated by Rio Tinto Research & Technology Development (R&TD), Melbourne in order to evaluate areas of technical uncertainty, to generate process design data and establish the department of elements in the various process streams.
Two plant balances are presented: galena leaching with ferric chloride brines and precious metals leaching with ammonium thiosulfate.
The biooxidation of ferrous iron is a potential industrial process in the regeneration of ferric iron, in hydrometallurgical leaching operations and in the removal of H2S in combustible gases.
The two options examined were mild pressure leaching and atmospheric ferric sulphate leaching.
Previous efforts to characterize the arsenopyrite surface by scanning electron microscopy (SEM) after leaching reactions with ferric iron found no evidence of elemental sulfur on the mineral surface.[5, 7] Other studies, using X-ray photoelectron spectroscopy (XPS), did not detect elemental sulfur on arsenopyrite surfaces that were exposed to mine wastewaters.[1].
The development has been performed from a separate study of microorganisms' adsorption on the solid surface and of chemical leaching of pyrrhotite by ferric iron.
The influences of temperature, dissolved ferric iron and dissolved oxygen in the leaching solution are considered in the kinetic formulation.
The importance of the cathodic ferric ion reduction reaction on the overall leaching process is progressively increased when increasing the nominal Fe3+/Fe2+ ratio and temperature.
A microbial community analysis by 16S rRNA gene amplicon sequencing indicated that the genera Acidithiobacillus and Leptospirillum greatly contributed to the regeneration of ferric ions during the two-step TU leaching process and further improved the recovery of gold.
