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Hydrolysis of Niobium Pentachloride Solutions
By James A. Sommers
Hydrolysis of NbC15 is used to recover oxide values for ceramic and metals production. Reaction of NbC15 with water is rapid, exothermic and vigorous, yielding a gelatinous slurry. In contrast, dissol
Jan 1, 1992
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Hydrometallurgical Approaches For Selecting The Effective Recycle Process Of Spent Lithium Ion Battery
By Jeong-Soo Sohn
Physical treatment and chemical treatment of spent lithium-ion battery were studied in our research team. Especially we developed two types of acidic leaching for crushed powders containing LiCoO2 of
Jan 1, 2006
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Hydrometallurgical Study of Purifying M-G Silicon Feedstock for Solar Cells Production
By Jilai Xue, Jun Zhu, Yongqiang Liu
"Up-grading silicon feedstock by removing B and metal impurities can improve process efficiency and lower production cost in metallurgical processing for solar cells production. Hydrometallurgical stu
Jan 1, 2012
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Hydrometallurgy for Copper Concentrates?
By John Dasher
The analyses reported on in this paper indicate that there are hydrometallurgical routes from sulphide concentrates to copper that are potentially competitive with smelters which are not permitted to
Jan 1, 1973
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Hydrothermal Preparation and Characterization of LiMn2O4 for LI-ION Battery Application
By W. J. Li, L. Kong, G. L. Li, X. M. Xi, J. Qiu
"A novel hydrothermal method was applied to prepare the precursor of LiMn2O4 using pre-treated electrolytic manganese dioxide (EMD) and lithium hydroxide as the main raw materials. The precursor was s
Jan 1, 2012
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HYL Direct Reduction: Past, Present And Future
By R. Quintero
The HYL Direct Reduction Process was the first in the world to operate successfully at industrial scale. The results were so innovative and attractive that other steelmaking companies acquired license
Jan 1, 1998
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IC 8265 Bibliography of Investment and Operating Costs for Chemical and Petroleum Plants. January-December 1964
By William C. Morel, Sidney Katell
This report covers the period January 1964 through December 1964; it is a continuation of the series that began with the publica- tion of Information Circular 7516 in October 1949. Also, it is the six
Jan 1, 1965
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IC 6107 Mining Practice At Morenci Branch, Phelps Dodge Corporation, Morenci, Ariz. ? Introduction
By McHenry Mosier
This paper describing mining practice at Morenci, Ariz., is one of a series of articles on mining method, and practice in the various mining districts in the United States. At present (1929) practi
Jan 1, 1929
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IC 6122 Graphite - Part II -Domestic And Foreign Deposits ? Foreword
By Paul M. Tyler
Graphite occurs in many places in the United States, but previous to 1914 the domestic production amounted to only 15 to 20 per cent of the natural graphite consumed in this country. Including artific
Jan 1, 1929
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IC 6123 Graphite - Part III - Utilization Of Graphite ? Introduction
By Paul M. Tyler
The outstanding trend in the graphite market is the fast-growing demand for cheaper qualities of graphite and the declining consumption of the more expensive varieties. The manufacture of graphite, cr
Jan 1, 1929
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IC 6124 Graphite - Part IV - Status Of The American Graphite Industry ? General Statement
By Paul M. Tyler
Graphite is an essential war mineral and for that reason has received much attention from the standpoint of national defense. During the World War the situation with respect to graphite supplies, thou
Jan 1, 1929
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IC 6136 Progress In Metal Mine Ventilation
By D. Harrington
Correct ventilation of underground workings whether in coal or in metal mines consists in establishing such control of air currents that the miners may work in safety, with maximum comfort and efficie
Jan 1, 1929
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IC 6143 Safeguarding Electrical Equipment Used In Gassy Mines European Practice: III Germany
By L. C. IlsLey
Cooperation between the United States Bureau of Mines and the Safety in Mines Research Board of Great Britain, continuous since 1924, has made possible this and other papers on safety subjects. Gratef
Jan 1, 1929
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IC 6155 Clay ? Foreword
By Paul M. Tyler
The technology of clay and the manufacture of ceramic products therefrom, and also the clay resources of most of the individual States, are already covered by a voluminous literature. The present resu
Jan 1, 1929
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IC 6165 Consumption Of Tin In The United States During 1928
By J. B. Umhau
During 1928 the United States consumed 73,270 long tons of virgin or primary tin, which was approximately 7.5 per cent more than the 68,198 long tons con¬sumed in 1927 and equaled 41 per cent of the w
Jan 1, 1929
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IC 6186 Mining Methods and Costs, Alaska-Juneau Gold Mining Co., Juneau, Alaska
By P. R. Bradley
This paper is one of a series , dealing with mining methods and costs , sponsored and published by the U. S. Bureau of Mines . Papers of this series are written by engineers and executives of mining c
Oct 1, 1929
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IC 6267 Points to be Considered in the Design of Covers for Explosion-Proof Compartments
By L. C. IlsLey
One of the details which the engineers observe closely in conducting tests on explosion-proof type equipment at the Pittsburgh experiment Station of the Bureau of Mines is the construction of covers a
May 1, 1930
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IC 6268 The Granite Industry Dimension Stone - Occurrence And Character Of Granite
By Oliver Bowles
Granites are classed as igneous rooks; they have been formed by the solidification of rook magmas or Solutions from deep within the earth. It is an almost invariable law of nature that mamas which coo
Jan 1, 1930
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IC 6293 Shrinkage Stoping ? Introduction
By Chas. F. Jackson
During the past year a special study was made of shrinkage stoping A large number of mines in the United States and Canada which employ this method were visited and their practices were discussed with
Jan 1, 1930
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IC 6307 Mining Methods And Costs At The Pilares Mine, Pilares De Nacozari, Sonora, Mexico ? Introduction
By Everard Leland
This paper, describing the mining practices at the Pilares mine, Pilares de Nacozari, Sonora, Mexico, is one of a series being prepared by the Bureau of Mines on mining practices, methods, and costs i
Jan 1, 1930