 Ferro-molybdenum containing 50 per cent, of molybdenum is offered at about $s. gd. per Ib. EXTRACTION OF MOLYBDENUM FROM ITS ORES. There are two methods in general use for the reduction of the ore : — The alumina-thermic process yields a product free...  The Mineral Industry - Page 5311910Full view - About this book
 | Geological Survey of New South Wales - 1916 - 1292 pages
...process yields a product free from carbon, with small amounts of silicon, and from 1 to 2 per cent. iron. Alloys with chromium and nickel are also made...the ore in a carbon tube, employing a current of 350 amperes at 60 volts, when a portion of the sulphur is evolved as sulphur dioxide. On increasing the... | |
 | Imperial Institute (Great Britain) - Commonwealth countries - 1908 - 500 pages
...ITS ORES. There are two methods in general use for the reduction of the ore : — The alumina-thermic process yields a product free from carbon, but containing...also made by this process. The electrical process is worked by heating the ore in- a carbon tube, employing a current of 350 amperes at 60 volts, when... | |
 | Imperial Institute (Great Britain) - Commonwealth countries - 1908 - 522 pages
...ITS ORES. There are two methods in general use for the reduction of the ore : — The alumina-thermic process yields a product free from carbon, but containing small quantities of silicon and from i to 2 per cent, of iron. Alloys with chromium and nickel are also made by this process. The electrical... | |
 | Imperial Institute (Great Britain) - Commonwealth countries - 1908 - 500 pages
...ITS ORES. There are two methods in general use for the reduction of the ore : — The alumina-thermic process yields a product free from carbon, but containing small quantities of silicon and from I to 2 per cent, of iron. Alloys with chromium and nickel are also made by this process. The electrical... | |
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