Formation of iron sulfide at faecal pellets and other microniches within suboxic surface sediment. [PDF]
, 2010 Faecal pellet deposition and bioturbation may lead to heterogeneously distributed particles of localized highly reactive organic matter (microniches) being present below the oxygen penetration depth.
Davison, William +3 more
core +1 more source
DFT Study into the Influence of Carbon Material on the Hydrophobicity of a Coal Pyrite Surface
Molecules, 2019 From the macroscopic point of view, the hydrophilicity of symbiotic carbon pyrite is weakened overall compared to that of pure pyrite. It is very important to explain the impact of elemental carbon accreted on a pyrite surface on the surface’s ...
Peng Xi +3 more
doaj +1 more source
Microbiology Indonesia, 2020 Given the low-cost and eco-friendly method, biotechnology has been widely utilized in industries as an alternative for physical and chemical processes, including in the biomining process (e.g., bioflotation and biobeneficiation).
Edy Sanwani +5 more
doaj +1 more source
Arsenic-bearing phases in South Andean volcanic ashes: Implications for As mobility in aquatic environments [PDF]
, 2015 Three samples of volcanic ashes collected after eruptions of the volcanos Hudson in 1991, Chaitén in 2008 and Puyehue in 2011 were analyzed in order to define the solid speciation of arsenic and the dynamics of its release to the aqueous phase.
Bia, Gonzalo Luis +3 more
core +1 more source
Desulphurization of coals of different ranks in the presence of slimes by reverse flotation
Energy Reports, 2019 In this paper, the flotation separation of pyrite from sub-bituminous and meta-bituminous coals in the presence of slimes was investigated. The sub-bituminous coal and the meta-bituminous coal have significant differences in their surface properties ...
You Zhou +5 more
doaj +1 more source
Metals, 2017 The effect of pyrite and the role of ammonium alcohol polyvinyl phosphate (AAPP) during gold leaching in ammoniacal thiosulfate solutions were investigated using pure gold foils.
Xiaoliang Liu +7 more
doaj +1 more source
Study on Water Wettability Mechanism of Pyrite and Coal Surfaces Based on Density Functional Theory
Kuangchan zonghe liyong, 2022 Flotation is based on the difference of wettability of mineral surfaces. In order to study the water wettability mechanism of pyrite and coal surfaces, pyrite and perfect coal surface models were constructed. The adsorptions of water and oxygen molecules
Chengyong Wang +3 more
doaj +1 more source
Dimension Engineering of Single-Layer PtN$_2$ with the Cairo Tessellation
, 2019 Single-layer PtN$_2$ exhibits an intriguing structure consisting of a tessellation pattern called the Cairo tessellation of type 2 pentagons, which belong to one of the existing 15 types of convex pentagons discovered so far that can monohedrally tile a ...
Huang, Wenjiang +5 more
core +1 more source
The importance of mineralogical knowledge in the sustainability of artisanal gold mining: a mid-south Peru case [PDF]
, 2019 Mineralogy and gold processing techniques from several mining areas of the Nazca-Ocoña gold belt, Mid-South Peru, were investigated to assess the efficiency of gold extraction methods in relation to their mineralogy.
Alfonso Abella, María Pura +7 more
core +2 more sources
Atomic Layer Deposition of Highly Conducting NiS2 Thin Films from Elemental Sulfur
Advanced Materials Interfaces, EarlyView.A simple new atomic layer deposition (ALD) process yields in‐situ crystalline and electrically conducting nickel disulfide thin films. This deposition process is based on two solid and safe precursors, nickel acetylacetonate and elemental sulfur. ABSTRACT A novel atomic layer deposition (ALD) process for highly conducting nickel disulfide thin films is
Juha Linjala +5 more
wiley +1 more source