Documents disponibles écrits par cet auteur

Crystallization of spherical common salt in the submillimeter size range without habit modifier / Indrajit Mukhopadhyay in Industrial & engineering chemistry research, Vol. 49 N° 23 (Décembre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 23 (Décembre 2010) . - pp. 12197–12203 Titre : Crystallization of spherical common salt in the submillimeter size range without habit modifier Type de document : texte imprimé Auteurs : Indrajit Mukhopadhyay, Auteur ; Vadake. P. Mohandas, Auteur ; Girish R. Desale, Auteur Année de publication : 2011 Article en page(s) : pp. 12197–12203 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Crystallization  Spherical Résumé : Nearly spherical morphology of solution-grown NaCl particles in the size range of 300−1000 μm was achieved at 55−60 °C employing a suitable crystallizer equipped with a butterfly wing-shaped impeller operated at 250 rpm. Morphology control was equally effective with synthetic and natural brines and required no habit modifier. Sieved spherical salt of 350−500 μm size exhibited superior flow (ca. 20% greater mass flow rate through a funnel; angle of repose 16°)—as compared to commercial vacuum evaporated free flow cubic salt of comparable dimension—upon treatment with potassium ferrocyanide anticaking additive. The superior flow characteristic was retained even after 3 months of storage. Scanning electron microscopic studies revealed that the round polycrystalline particles were derived from the stacking of minute NaCl cubes and the average size of the spheres was amenable to reduction through use of ethanol as antisolvent. The process was successfully scaled up to 10 kg level. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1016317 [article] Crystallization of spherical common salt in the submillimeter size range without habit modifier [texte imprimé] / Indrajit Mukhopadhyay, Auteur ; Vadake. P. Mohandas, Auteur ; Girish R. Desale, Auteur . - 2011 . - pp. 12197–12203. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 23 (Décembre 2010) . - pp. 12197–12203 Mots-clés : Crystallization  Spherical Résumé : Nearly spherical morphology of solution-grown NaCl particles in the size range of 300−1000 μm was achieved at 55−60 °C employing a suitable crystallizer equipped with a butterfly wing-shaped impeller operated at 250 rpm. Morphology control was equally effective with synthetic and natural brines and required no habit modifier. Sieved spherical salt of 350−500 μm size exhibited superior flow (ca. 20% greater mass flow rate through a funnel; angle of repose 16°)—as compared to commercial vacuum evaporated free flow cubic salt of comparable dimension—upon treatment with potassium ferrocyanide anticaking additive. The superior flow characteristic was retained even after 3 months of storage. Scanning electron microscopic studies revealed that the round polycrystalline particles were derived from the stacking of minute NaCl cubes and the average size of the spheres was amenable to reduction through use of ethanol as antisolvent. The process was successfully scaled up to 10 kg level. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1016317

Development of correlations for predicting the slurry erosion of ductile materials / Girish R. Desale in Transactions of the ASME . Journal of tribology, Vol. 133 N° 3 (Juillet 2011) 

Public ISBD [article]  in Transactions of the ASME . Journal of tribology > Vol. 133 N° 3 (Juillet 2011) . - 10 p. Titre : Development of correlations for predicting the slurry erosion of ductile materials Type de document : texte imprimé Auteurs : Girish R. Desale, Auteur ; Bhupendra K. Gandhi, Auteur ; S. C. Jain, Auteur Année de publication : 2012 Article en page(s) : 10 p. Note générale : Tribology Langues : Anglais (eng) Mots-clés : Aluminium  alloys  Brass  Carbon  steel  Copper  Cutting  Deformation  Ductility  Hardness  Particle  size  Slurries  Stainless  steel  Wear  Wear  testing Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Material loss due to erosion is a serious problem associated with the flow of solid-liquid mixtures. In the present work, erosion wear tests have been carried out in a slurry pot tester for seven different ductile type materials namely aluminum alloy (AA6063), copper, brass, mild steel, AISI 304L stainless steel, AISI 316L stainless steel, and turbine blade grade steel using three different erodents namely, quartz, alumina, and silicon carbide. Experiments have been performed at different orientation angles of target material at the velocities of 3, 6, and 8.33 m/s for solid concentrations of 10%, 20%, and 30% (by weight) and particle sizes of 363, 550, and 655 µm. The contribution of cutting wear in the total wear of ductile material at various orientation angles has been determined. It is observed that the maximum cutting wear angle for the ductile material depends on its hardness and a correlation is developed for its prediction. Also a methodology is proposed for estimation of the total erosion wear rate as a contribution of cutting and deformation wear rates. It is seen that this procedure results in an error of ±18% in estimation of erosion wear rate for the present experimental data. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] [article] Development of correlations for predicting the slurry erosion of ductile materials [texte imprimé] / Girish R. Desale, Auteur ; Bhupendra K. Gandhi, Auteur ; S. C. Jain, Auteur . - 2012 . - 10 p. Tribology Langues : Anglais (eng) in Transactions of the ASME . Journal of tribology > Vol. 133 N° 3 (Juillet 2011) . - 10 p. Mots-clés : Aluminium  alloys  Brass  Carbon  steel  Copper  Cutting  Deformation  Ductility  Hardness  Particle  size  Slurries  Stainless  steel  Wear  Wear  testing Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Material loss due to erosion is a serious problem associated with the flow of solid-liquid mixtures. In the present work, erosion wear tests have been carried out in a slurry pot tester for seven different ductile type materials namely aluminum alloy (AA6063), copper, brass, mild steel, AISI 304L stainless steel, AISI 316L stainless steel, and turbine blade grade steel using three different erodents namely, quartz, alumina, and silicon carbide. Experiments have been performed at different orientation angles of target material at the velocities of 3, 6, and 8.33 m/s for solid concentrations of 10%, 20%, and 30% (by weight) and particle sizes of 363, 550, and 655 µm. The contribution of cutting wear in the total wear of ductile material at various orientation angles has been determined. It is observed that the maximum cutting wear angle for the ductile material depends on its hardness and a correlation is developed for its prediction. Also a methodology is proposed for estimation of the total erosion wear rate as a contribution of cutting and deformation wear rates. It is seen that this procedure results in an error of ±18% in estimation of erosion wear rate for the present experimental data. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...]