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Online since: November 2013
Authors: Fereshteh Rashchi, Mehdi Ghobeiti Hasab, Shahram Raygan
Table 1Chemical composition of the concentrate used in this study
S
(%)
Fe
(%)
Si
(%)
Al
(%)
K
(%)
Zn
(ppm)
As
(ppm)
Ag
(ppm)
Cu
(ppm)
Pb
(ppm)
Ba
(ppm)
Ca
(ppm)
Au*
(ppb)
46.51
40.61
4.16
0.59
0.23
6264
2614
1972
1499
959
896
143
27154
(*Au was analyzed by the fire assay technique)
Table 2Specific surface area of the particles at different milling times
Milling time (min)
0
15
30
45
60
120
240
480
Specific surface area (m2/g)
0.18
1.63
2.72
3.36
3.17
2.80
2.54
2.11
Ultra–fine milling of the concentrate was performed using a high–energy planetary ball mill (Retsch PM 400) with 25 g concentrate and 500 g tungsten carbide balls (concentrate/ball: 1/20, 7 balls with diameter of 20 mm and 7 balls with diameter of 10 mm) using tungsten carbide chamber with volume of 250 mL and rotating speed of 300 rpm in different milling times of 15, 30, 45, 60, 120, 240 and 480 min at ambient atmosphere.
Experimental Evaluation of Injection Pressure for a Mahua Oil Methyl Ester (MOME) Fueled C.I. Engine
Online since: July 2014
Authors: B. Kondaiah, B. Durga Prasad
Pugazhvadivu and G Sankarnarayanan: “Experimental studies on a diesel engine using Mahua oil as fuel” , Indian journal of science and Technology, Vol 3 N0 7 July 2010 pp787-791
[3] Sukumar puhan , N Vedaraman , B V Ramabrahamam and G Nagarajan: “ Mahua (Madhuca indica) seed oil : A source of renewable energy in India”, Journal of scientific & Industrial Research , Vol 64 November 200, pp 890-896
[4] Sukumar puhan , N Vedaraman , Boppanna V B Ram, G Sankarnarayanan K Jeychandran: “ Mahua oil methyl ester as biodiesel preperation and emission characteristics”, Biomass & Bio energy 28 (2005) pp87-93
[5] Sukumar puhan, N Vedaraman ,G Sankarnarayanan Boppanna V B Ram: “ Performance and emission study of Mahua oil methyl ester in a 4 stroke natural aspirated direct injection diesel engine”.
Online since: August 2020
Authors: Risdiana Risdiana, Togar Saragi, Muhammad Abdan Syakuur, Nur'aini Nafisah, Diba Grace Auliya, Eka Nurwati, Tiara Amalia, Yuyu R. Tayubi, Yati Maryati, Wiendartun Wiendartun, Selly Feranie
Koike, Possible exisences of the stripe correlations in electron-doped superconducting cuprates Eu1.85Ce0.15Cu1-yNiyO4+α-δ studied by muon-spin-relaxation, Advanced Materials Research 896 (2014) 354