An approximate estimation of total materials requirement of metals
An approximate estimation of total materials requirement of metals
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DOI:
10.2320/jinstmet1952.65.7_564
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发表时间:
2001-07-01
影响因子:
--
通讯作者:
Okura, T
中科院分区:
文献类型:
--
作者:
Halada, K;Ijima, K;Okura, T
Ore-TMRs, which are the total amount of overburden and rock to obtain metal ore, were estimated as a fundamental data to estimate the value of TMR (Total Materials Requirement) of metals. Ore-TMR of coal, iron, copper, zinc and tin are estimated 12.5, 5.1, 304, 34 and 95 representatively by statistic method based on hearing and investigation of practical mining sites. An approximation from the quality of crude ore and further approximation from the concentration of the metal in the crust were also proposed asand(ore-TMR) = 2.0/{100 x (quality of crude ore %)}(ore-TMR) = 2.0 x (concentration in the crust [ppm])(-2/3)).