Results 111 to 120 of about 595 (174)

Sustainable strategies for remediation of Cr(VI) contaminated soil and water bodies: exploring the potential of invasive bamboo and its derivatives. [PDF]

Front Plant Sci
Mohanty C, Das PK, Kaur R, Selvaraj CI.
europepmc   +1 more source

GOLD, COPPER, CHROMITE AND MANGANESE MININGS IN PHILLIPPINE

Journal of the Mining and Metallurgical Institute of Japan, 1942
openaire   +1 more source

AI and Robotics Advancement in Analytical Mineral Characterization and Mining Processes: A Review and Research Trends Analysis. [PDF]

Top Curr Chem (Cham)
Mkhohlakali A, Toona MP, Mogashane T, Rampfumedzi T, Madzivha P, Letsoalo MR, Ntsasa N, Sehata J, Mukwevho N, Ncedo T, Mabowa MH, Tshilongo J.   +11 more
europepmc   +1 more source

Mineral pollutants and coliform contamination in groundwater pose health risks to consumers: a spatiotemporal study in a mining-impacted area. [PDF]

Sci Rep
Kazemi A, Esmaeilbeigi M, Nahvinia MJ, Sahebi P, Sahebi Z, Ahadi M, Asl AG.   +6 more
europepmc   +1 more source

RETRACTED: A 12,800-year-old layer with cometary dust, microspherules, and platinum anomaly recorded in multiple cores from Baffin Bay.

PLoS One
Moore CR, Tselmovich VA, LeCompte MA, West A, Culver SJ, Mallinson DJ, Baalousha M, Kennett JP, Napier WM, Bizimis M, Adedeji V, Sutton SR, Kletetschka G, Langworthy KA, Perez JP, Witwer T, Young MD, Alam M, Jeffreys J, Greenwood RC, Malley JA.   +20 more
europepmc   +1 more source

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Mechanistic features of reduction of copper chromite and state of absorbed hydrogen in the structure of reduced copper chromite

Russian Journal of General Chemistry, 2008
The review discusses the experimental data on the unusual mechanism of the reduction of copper cations from the copper chromite, CuCr2O4, structure. Treatment of copper chromite in hydrogen at 180–370°C is not accompanied by water formation but leads to absorption of hydrogen by the oxide structure with simultaneous formation of metallic copper as ...
Vladimir Zaikovskii, L M Plyasova, Parmon V N   +2 more
exaly   +2 more sources

Novel microwave synthesis of copper chromite nanoparticles

Inorganic Chemistry Communication, 2021
Abstract Here, a novel microwave synthesis method has been used to prepare copper chromite nanoparticles. Effect of capping agents viz; citric acid, oleic acid, coconut oil, and urea on crystal structure and size of copper chromite nanoparticles (CuCr2O4 NPs) are presented.
Pawan Khanna
exaly   +2 more sources

Synthesis of copper chromite catalyst

Aerospace Science and Technology, 2004
Abstract Copper chromite (CuCr 2 O 4 ) catalysts were prepared by ceramic and coprecipitation methods and characterized by X-ray diffraction, scanning electron microscopy (SEM), elemental, differential calorimetric (DSC), thermogravimetric and granulometric analysis, mass spectroscopy and infrared spectroscopy (IR).
Aparecida M. Kawamoto, Luiz Claudio Pardini, Luis Claudio Rezende   +2 more
exaly   +2 more sources

Ethanol dehydrogenation to ethyl acetate by using copper and copper chromite catalysts

Chemical Engineering Journal, 2012
Abstract In the recent years, the interest in the ethanol production from renewable natural sources, as a possible alternative energy vector, has strongly grown in the world. The low-cost ethanol availability has also favored the study of the production of different chemicals such as ethylene, ethyl ether, acetaldehyde and ethyl acetate starting from
Riccardo Tesser, Martino Di Serio, E Santacesaria   +2 more
exaly   +3 more sources

Sintering of lanthanum chromite doped with zinc or copper

Journal of Materials Science Letters, 1988
La substitution de Zn ou Cu a Cr dans LaCrO 3 permet l'obtention de ceramiques denses sans controle de la pression d'oxygene lors du ...
Shinsuke Hayashi, Saito Hajime
exaly   +2 more sources