Results 221 to 230 of about 23,425 (262)
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The Journal of Geology, 1926
It is pointed out that the distribution of color in a sediment is as important in determining the general color effect as is the total amount of coloring matter present. It is shown that quartz will become iron-stained only in the absence of more active adsorbants, that orthoclase acquires iron stain more readily than quartz, and that while Al(OH)3 is ...
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It is pointed out that the distribution of color in a sediment is as important in determining the general color effect as is the total amount of coloring matter present. It is shown that quartz will become iron-stained only in the absence of more active adsorbants, that orthoclase acquires iron stain more readily than quartz, and that while Al(OH)3 is ...
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2001
Abstract Terminating the “52-year conflict” in the Middle East was the theme of the July 2000 conference in Camp David sponsored by the Clinton administration, whose strategists had declared the dispute ripe for resolution. The outcome of this conference has now become part of the thickening Middle East chronicle of dismissed ...
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Abstract Terminating the “52-year conflict” in the Middle East was the theme of the July 2000 conference in Camp David sponsored by the Clinton administration, whose strategists had declared the dispute ripe for resolution. The outcome of this conference has now become part of the thickening Middle East chronicle of dismissed ...
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DETERMINATION OF IRON IN GLASS SAND*
Journal of the American Ceramic Society, 1948A bstract The 0 ‐phenanthroline method for the colorimetric determination of iron has been adapted to the analysis of glass sand. The sample taken for analysis was decomposed by treatment with HF and H
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Deferrization of Kaolinic Sand by Iron Oxidizing and Iron Reducing Bacteria
Advanced Materials Research, 2007Iron oxidizing bacteria Acidithiobacillus ferrooxidans, iron reducing bacteria Acidiphilium spp. and their mixture were applied for leaching of iron impurities from quartz sand. The bacterial leaching was carried out in order to decrease the amount of colouring iron oxides and to improve the technological properties of the raw material.
Daniel Kupka +2 more
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Reuse of waste iron as a partial replacement of sand in concrete
Waste Management, 2008One of the major environmental issues in Iraq is the large quantity of waste iron resulting from the industrial sector which is deposited in domestic waste and in landfills. A series of 109 experiments and 586 tests were carried out in this study to examine the feasibility of reusing this waste iron in concrete.
Zainab Z, Ismail, Enas A, Al-Hashmi
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Study on Ferromagnetic Minerals in Iron Sands in Japan-Iron Sands from Wajiro and Atsumi Peninsula
The Journal of the Society of Chemical Industry, Japan, 1960砂鉄を工業的に利用する基礎的研究として, 和白産および渥美半島産砂鉄の主成分である強磁性成分(含鉄, チタン鉱物)の組成を明らかにするとともに,選鉱上参考となる知見をえることを目的とした。砂鉄中の含鉄,チタン黒色鉱物を常温で磁石,磁力選鉱機などでその磁性に応じて性質の異なる種々の部分に分け,得られた各部分についてX線回折,格子定数の測定,化学分析など行なって検討した。和白産砂鉄中の鉄,チタン鉱物の主体はイルメナイト-赤鉄鉱系固溶体で,その他極く少量のpseudobrookite,ルチルなどが含まれていた。渥美半島産のものはイルメナイト-赤鉄鉱系固溶体および磁鉄鉱-ウルボスピネル系固溶体と思われるものからなっていた。これら砂鉄中のイルメナイト-赤鉄鉱固溶体のうち大部分は極めて強磁性のもので ...
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Anatolian Studies, 1981
The use of iron-bearing sands such as those of the Black Sea has often been thought of as an early source of iron ore by archaeo-metallurgists. Indeed Japan was an avid user of such material as late as the 19th century, and its use was being considered by the Turkish authorities in 1975.The black sands of the south side of the Black Sea are very ...
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The use of iron-bearing sands such as those of the Black Sea has often been thought of as an early source of iron ore by archaeo-metallurgists. Indeed Japan was an avid user of such material as late as the 19th century, and its use was being considered by the Turkish authorities in 1975.The black sands of the south side of the Black Sea are very ...
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Comparison of Effect of Iron Tailing Sand and Natural Sand on Concrete Properties
Key Engineering Materials, 2014Mixed sands with different fineness are prepared by mixing iron tailing sand and manufactured sand at different ratio. It is shown that properties of concrete prepared with natural sand whose fineness is 2.3 are worse than that of concreter prepared with mixed sand whose fineness is between 2.6 to 3.0, but are better than that of concrete prepared with
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Iron Silica Sand Interface Reactions.
1960PhD ; Metallurgy ; University of Michigan, Horace H. Rackham School of Graduate Studies ; http://deepblue.lib.umich.edu/bitstream/2027.42/182616/2/6001750 ...
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