Results 61 to 70 of about 4,288 (305)

Microbiology of the sulfur-dominated glacial ecosystem at Borup Fiord Pass, and high Arctic low-temperature spring associated microbial mats, The

, 2018
Includes bibliographical references.2018 Summer.Borup Fiord Pass (BFP) located on Ellesmere Island in the Canadian High Arctic is a unique low-temperature environment. BFP is a sulfur-dominated ecosystem that occurs within the Krieger mountains.
Trivedi, Christopher Bhartendu
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Combined Gravimetric, Electrochemical, and Computational Research on Benzothiophene Derivatives as Effective Corrosion Inhibitors for Mild Steel

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Four benzothiophenes, thianaphthene (BT‐1), 3‐bromothianaphthene (BT‐2), benzo[b]thiophene‐2‐carboxaldehyde (BT‐3), and benzo[b]thiophene‐2‐carbonitrile (BT‐4), were tested as mild steel corrosion inhibitors in 1‐M HCl. The compounds have the similar benzothiophene core but differ in the substituents bound to the ring.
Nhlanhla G. Chirwa, Motsie Elija Mashuga, Mohammad Salman, Indra Bahadur   +3 more
wiley   +1 more source

Biosulfidogenesis Mediates Natural Attenuation in Acidic Mine Pit Lakes

Microorganisms, 2020
Acidic pit lakes are abandoned open pit mines filled with acid mine drainage (AMD)—highly acidic, metalliferous waters that pose a severe threat to the environment and are rarely properly remediated.
Charlotte M. van der Graaf, Javier Sánchez-España, Iñaki Yusta, Andrey Ilin, Sudarshan A. Shetty, Nicole J. Bale, Laura Villanueva, Alfons J. M. Stams, Irene Sánchez-Andrea   +8 more
doaj   +1 more source

Sulfur from the Stari trg mine, Kosovo

Natura Croatica : Periodicum Musei Historiae Naturalis Croatici, 1992
Sphalerite, pyrite, bournonite, boulangerite, anglesite and sulfur were determinated on one sample of the ore deposit of Stari Trg mine, kept in collection of Department of Mineralogy and Petrography, Croatian Natural History Museum. Relation of the deposition of found minerals was determinated. Sulfur was deposited as fine powder coatings and as small
Bermanec, Vladimir, Radanović-Gužvica, Biserka, Zebec, Vladimir   +2 more
openaire   +3 more sources

Construction of Lean Coal Molecular Structure Model Based on Spectroscopic Characterization

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The chemical structure of coal exerts a profound influence on its properties and utilization pathways. A comprehensive analysis of coal's molecular structure is crucial for mitigating environmental pollution arising from coal combustion and improving the efficiency of coal utilization.
Song Liu, Hao Xia, Tao Ge, Yaling Bai, Shoulan Wang, Yunfang Liu   +5 more
wiley   +1 more source

Enrichment characteristics and genesis mechanism of critical elements (Nb-Ta-Zr-Hf-REE-Y) in coals: a case study of Late Permian coalfield in Northeastern Guizhou, China

Frontiers in Earth Science
The discovery of coal-type beneficial metal deposits and corresponding genesis mechanisms are cutting-edge issues in current sedimentary environment research. Based on industrial analysis, mineralogy, and geochemical measurement of seven typical mines in
Ziyi Ye, Baoqing Li, Jialiang Cao
doaj   +1 more source

Investigation of sulfur interactions on a conventional nickel-based solid oxide fuel cell anode during methane steam and dry reforming

, 2015
2015 Fall.Includes illustrations (some color).Includes bibliographical references.Solid oxide fuel cells (SOFC) are an attractive energy source because they do not have undesirable emissions, are scalable, and are feedstock flexible, which means they can
Jablonski, Whitney S.
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Synthesis and Interfacial Behavior of Mixed Potassium N‐Lauroyl/N‐Myristoyl Glycinate Surfactants With Varying Alkyl Chain Ratios

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Biodegradable and low‐irritant amino acid–based surfactants have attracted considerable attention as environmentally friendly alternatives to conventional petroleum‐derived surfactants. In this study, a series of acyl amino acid surfactants with identical amino acid head groups but different alkyl chain lengths were synthesized via a modified ...
Toshihiro Takeshita, Tanjina Sharmin, Atsuki Nishihara, Sihyung Kim, Kazusa Mishima, Sahena Ferdosh, Agus Saptoro, Hussein Znad, Zaidul Islam Sarker, Kai Bin Liew, Mikio Ouchi, Kenji Mishima   +11 more
wiley   +1 more source

Evaluating Coal Quality and Trace Elements of the Karagandy Coal Formation (Kazakhstan): Implications for Resource Utilization and Industry

Resources
The Carboniferous coal seams in Northeast Kazakhstan remain insufficiently investigated, with a lack of comprehensive mineralogical and geochemical assessments necessary to understand the geological processes controlling coal quality. This study examines
Medet Junussov, Geroy Zh. Zholtayev, Ahmed H. Moghazi, Yerzhan Nurmakanov, Mohamed Abdelnaby Oraby, Zamzagul T. Umarbekova, Moldir A. Mashrapova, Kuanysh Togizov   +7 more
doaj   +1 more source

Recovery of sulfur from phosphogypsum : conversion of calcium sulfate to calcium sulfide [PDF]

"In a cooperative effort between the U.S. Bureau of Mines and the Florida Institute of Phosphate Research, with input from the phosphate industry, the conversion of phosphogypsum to sulfur has been investigated.

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