available online at http://meteoritics.org 95 © Meteoritical Society, 2003. Printed in USA. Early petrologic processes on the ureilite parent body S. J. SINGLETARY* and T. L. GROVE Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA *Corresponding author. E-mail: [email protected] (Received 15 January 2002; revision a...

This work investigates the nature of technological development and the viability of applying an evolutionary approach to the early development of iron production in Sri Lanka. The main objective of this paper is to use modern techniques in the fields of Physics and Engineering to investigate the wind-driven furnace used in early iron and steel producing industry dating to 300 B.C. In order to s...

Introduction: We have conducted melting experiments on liquids predicted to be in equilibrium with ureilites to explore the phase relations of the smelting reaction and understand the relations between ureilites. Correlations of modal mineralogy, mineral chemistry and texture are consistent with smelting as a major process involved in ureilite petrogenesis [1]. Although ureilites resemble igneo...

1.1 Manufacturing processes Major industries with exposure to strong inorganic acid mists include those that manufacture phosphate fertilizer, isopropanol (isopropyl alcohol), synthetic ethanol (ethyl alcohol), sulfuric acid, nitric acid, and lead batteries. Exposure also occurs during copper smelting, and pickling and other acid treatment of metals (Suresh, 2009). Minor uses of sulfuric acid i...

Mercury is used in small-scale mining to amalgamate gold particles, facilitating their separation from heavy sands. The negative environmental/health-related effects of mercury in mining communities in Ghana and other countries have generated research interest into development of safer alternatives. This study tested direct smelting as an alternative to amalgamation. In laboratory investigation...