Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Ritayan Chatterjee"'
Autor:
Amitesh Roy, Najirul Haque, Ritayan Chatterjee, Surajit Biswas, Asim Bhaumik, Mitali Sarkar, Sk. Manirul Islam
Publikováno v:
New Journal of Chemistry. 47:6673-6684
Silver nanoparticle embedded POP was synthesized and used as a heterogeneous catalyst for the synthesis of α-alkylidene cyclic carbonates and acyclic carbamates via CO2 fixation under mild conditions.
Publikováno v:
Materials Chemistry and Physics. 263:124360
Nanosized spherical copper particle embedded on oxide matrix (Cunp-Cu2O/SiO2) is synthesized from a low cost chalcopyrite concentrate. The concentrate is reduced by hydrogen at 1323 K, followed by acid leaching to produce Cunp-Cu2O/SiO2. Powder X-ray
Publikováno v:
International Journal of Hydrogen Energy. 41:9256-9266
The current work deals with the production of iron by the hydrogen reduction of magnetite ore fines in a thermogravimetric analyzer (TGA). The variables studied were time (0–30 min), temperature (973–1273 K), hydrogen flow rate (0.1–0.5 L min
Autor:
Ritayan Chatterjee, P. K. Mukhopadhyay, Surajit Biswas, Sandeep Agarwal, Dinabandhu Ghosh, Saikat Kumar Kuila
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783319724836
An Indian magnetite ore from the Nagaland region was characterized by powder X-ray diffraction, spectroscopies (ultraviolet-visible and Raman), high temperature magnetization and thermal analysis. A Rietveld refinement of the diffraction data reveale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2089cfdf49bf1086965390d4d5d23547
https://doi.org/10.1007/978-3-319-72484-3_32
https://doi.org/10.1007/978-3-319-72484-3_32
Autor:
Dinabandhu Ghosh, Ritayan Chatterjee
Publikováno v:
Metallurgical and Materials Transactions B. 46:2692-2705
A Ghatshila chalcopyrite concentrate (average particle size, 50 μm) containing primarily CuFeS2 and SiO2 (Cu 16 pct) was reduced by a stream of hydrogen in a thermogravimetric analyzer (TGA) at selected temperatures [1173 K to 1323 K (900 °C to 105
Publikováno v:
Transactions of the Indian Institute of Metals. 69:741-749
Pure multiwalled carbon nanotubes were synthesized by the spray pyrolysis of benzene–ferrocene mixtures at 1173–1273 K. Several variables were studied: temperature, ferrocene concentration in benzene, pump (feed) rate of benzene–ferrocene mixtu
Publikováno v:
International Journal of Minerals, Metallurgy, and Materials. 22:225-232
The structural and morphological characterizations of a chalcopyrite concentrate, collected from the Indian Copper Complex, Ghatshila, India, were carried out by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscop
Publikováno v:
Proceedings of the 3rd Pan American Materials Congress ISBN: 9783319521312
The present work deals with the characterization of pure magnetite microfines (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::721a4c7660d1b327da54fb93fab903ee
https://doi.org/10.1007/978-3-319-52132-9_62
https://doi.org/10.1007/978-3-319-52132-9_62
Autor:
Dinabandhu Ghosh, Ritayan Chatterjee
Publikováno v:
Metallurgical and Materials Transactions B. 44:1049-1054
A Ghatshila chalcopyrite concentrate (average particle size, 50 μm) containing primarily CuFeS2 and SiO2 (Cu 16 pct, Fe 26 pct, S 14 pct, Si 5 pct, and O 33 pct) was reduced by a stream of hydrogen in a horizontal tube furnace at 1323 K (1050 °C),
Publikováno v:
Transactions of the Indian Institute of Metals. 65:265-273
Reduction of nickel oxide (NiO) powder and pellet by hydrogen was studied in a thermogravimetric apparatus. The variables studied were temperature (573, 673, 773, 873, 973 K) and hydrogen flow rate (100, 150, 200 cc min−1). With NiO powder 70–80