LCA case study for lead and zinc production by an imperial smelting process in china a brief presentation

2002 ◽  
Vol 7 (5) ◽  
pp. 276-276 ◽  
Author(s):  
Guo Xueyi ◽  
Xiao Songwen ◽  
Xiao Xiao ◽  
Li Qihou ◽  
Yamamoto Ryoichi
Keyword(s):  
Smelting Process ◽  
Lead And Zinc ◽  
Imperial Smelting Process ◽  
Zinc Production ◽  
Lca Case Study

Removal of mercury using processes involving sulfuric acid during zinc production in an imperial smelting process (ISP) plant

2016 ◽  
Vol 19 (2) ◽  
pp. 863-869 ◽  
Author(s):  
Masaki Takaoka ◽  
Daisuke Hamaguchi ◽  
Ryuhei Shinmura ◽  
Tomoo Sekiguchi ◽  
Hiroyuki Tokuichi
Keyword(s):  
Sulfuric Acid ◽  
Smelting Process ◽  
Imperial Smelting Process ◽  
Zinc Production

scholarly journals Reconstruction of 16th–17th Century Lead Smelting Processes on the Basis of Slag Properties: A Case Study from Sławków, Poland

Minerals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1039
Author(s):  
Rafał Warchulski ◽  
Monika Szczuka ◽  
Krzysztof Kupczak
Keyword(s):  
17Th Century ◽  
Smelting Process ◽  
Liquid Lead ◽  
Secondary Phases ◽  
Lead Smelter ◽  
Reducing Conditions ◽  
Sulphide Ores ◽  
Slag Properties ◽  
Lead Smelting

The study focuses on the reconstruction of the technological process in the 16th–17th century lead smelter in Sławków based on chemical and petrographic analyzes of slags. There are three main types of material at the landfill: glassy, crystalline, and weathered. Glassy slags are made of amorphous phase in which crystals of pyroxene, willemite, olivine, wüstite, and lead oxide appear. Crystalline slags are composed of wollastonite, rankinite, melilite, anorthite, quartz, and Fe oxides. Weathered slags have a composition similar to glassy slags, but they also contain secondary phases: anglesite and cerussite. Chemical analyzes confirmed that the smelter used sulphide ores, which were roasted, and the main addition to the charge was quartz sand. The smelting process took place in a brick-built furnace, under reducing conditions, with varied oxygen fugacity ranging from WM to MH buffer. The slag characteristics show a knowledge of the workers in the field of smelting methods. The addition of SiO2 allowed for the binding of elements that could contaminate the obtained lead, and at the same time, the low melting point of the material (1150 °C) and the melt viscosity (logη = 1.34 for 1150 °C) was maintained, enabling the effective separation of liquid lead.

Exergy as an Indicator for Resources Scarcity: The Exergy Loss of Australian Mineral Capital — A Case Study

2006 ◽  
Author(s):  
Alicia Valero ◽  
Antonio Valero ◽  
Inmaculada Arauzo
Keyword(s):  
Precious Metals ◽  
Mineral Resources ◽  
Exergy Loss ◽  
Lead And Zinc ◽  
Mining History ◽  
Australian Case ◽  
Ore Grades ◽  
Metal Equivalent

Over the span of the 20th century, the global demand for metals and minerals has increased dramatically. This is associated with a general trend of declining ore grades from most commodities, meaning higher quantities of ore needed to be processed and thus more energy. Hence, quantifying the loss of mineral capital in terms of mass is not enough since it does not take into account the quality of the minerals in the mine. Exergy is a better indicator than mass because it measures at the same time the three features that describe any natural resource: quantity, composition and a particular concentration. For the sake of better understanding the exergy results, they are expressed in tons of Metal equivalent, tMe, which are analogously defined to tons of oil equivalent, toe. The aim of this paper is 1) to show the methodology for obtaining the exergy loss of mineral resources throughout a certain period of time and 2) to apply it to the Australian case. From the available data of production and ore grade trends of Australian mining history, the tons of Metal equivalent lost, the cumulative exergy consumption, the exergy decrease of the economic demonstrated reserves and the estimated years until depletion of the main base-precious metals are provided, namely: for gold, copper nickel, silver lead and zinc.

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