نتایج جستجو برای: ore treatment

تعداد نتایج: 1404160  

2005
Tao Min

According to the publication by US Minerals Survey in 1999, the total reserve of manganese ore in the world is 0.66 billion tons. See Table 1. Table 1 World Manganese ore reserve(Mn metal weight, million tons) __________________________________________ Name of counties Reserve in 1999 __________________________________________ South Africa 370 Ukraine 135 China 40 India 34 Australia 26 Gabon 20...

Journal: :British journal of preventive & social medicine 1970
J T Boyd R Doll J S Faulds J Leiper

2017
Zixin Yin Yuxing Peng Zhencai Zhu Zhangfa Yu Tongqing Li

The impact behavior between the charge and lifter has significant effect to address the mill processing, and is affected by various factors including mill speed, mill filling, lifter height and media shape. To investigate the multi-body impact load behavior, a series of experiments and Discrete Element Method (DEM) simulations were performed on a laboratory-scale mill, in order to improve the g...

2017
Burga Braun Sven Künzel Ulrich Szewzyk

Here, we report the draft genome sequence of the betaproteobacterium Ideonella sp. strain A_228. This isolate, obtained from a bog iron ore-containing floodplain area in Germany, provides valuable information about the genetic diversity of neutrophilic iron-depositing bacteria. The Illumina NextSeq technique was used to sequence the draft genome sequence of the strain.

Journal: :American journal of industrial medicine 1996
L Laflamme V L Blank

The study investigated whether occupational accident risks were equally distributed across age categories over time in the context of production reorganization and work rationalization in a Swedish iron ore mine between 1980 and 1993. Three phases of reorganization, defined by productivity levels, and four age categories were related to age-related accident risk ratios using the Poisson-regress...

2015
Santeri Palviainen Olli Vuolteenaho Mamdouh Omran Timo Fabritius

There is a rapidly increasing demand for iron resources with the fast-paced development of the iron and steel industry. For this reason, the iron and steel industry is facing the risk of a raw material shortage. Deposits of high-phosphorus iron ores are widely spread worldwide, but the use of these deposits in industry is limited owing to the high phosphorus content, which affects the cost of t...

Journal: :African Journal of Science and Technology 2009

Journal: :Aquatic toxicology 2016
Alexandra Caroline da Silva Veronez Rômulo Victor Salla Vinícius Dadalto Baroni Indianara Fernanda Barcarolli Adalto Bianchini Claudia Bueno Dos Reis Martinez Adriana Regina Chippari-Gomes

For decades, the extraction of minerals has intensified in order to meet the demand of industry. Iron ore deposits are important sources of metals, such as iron (Fe) and manganese (Mn). The particulate ores can be dispersed during extraction, transport and storage, with potential to induce biological impacts. Amphibians are very sensitive to environmental stressors. Therefore, the present study...

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