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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...advantages for catching the carbon high, thus reducing the amount of coal or coke-dust required to a minimum and avoiding rephosphorization from the high phosphorus slag. Another advantage of the process, when iron with a high phosphorus content is used, is that it permits the making of a slag which contains a high ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...advantages for catching the carbon high, thus reducing the amount of coal or coke-dust required to a minimum and avoiding rephosphorization from the high phosphorus slag. Another advantage of the process, when iron with a high phosphorus content is used, is that it permits the making of a slag which contains a high percentage of phosphoric acid and is therefore suitable for use in the manufacture of fertilizers. This slag is a valuable byproduct from one of the southern plants. The Southern Triplexing Process: In operating the duplex process in the South, it has been found that, owing to the high phosphoric acid content of the slag, it is difficult to prevent the reduction of some of the phosphorus after recarburizing. This rephosphorization of the steel occurs mainly in the ladle, particularly in the portion of the metal in direct contact with the mass of floating slag, and is most noticeable in the last two or three ingots from each ladle of steel teemed. In order to overcome this defect and at the same time increase the production of basic slag for phosphate fertilizer, one plant has developed a triplex process in which two basic open hearth units are required to finish the metal after blowing in the converter. Briefly, the process is as follows: After blowing, the metal is transferred from the converters to primary basic tilting furnaces where it is treated with lime and the other necessary oxides for dephosphorizing it. Here the phosphorus content in the metal is reduced to about.07%, when it is poured into ladles and transferred by specially constructed, heavy, extra-wide-gage trucks to a finishing unit composed of an equal number of similar furnaces. In these furnaces the phosphorus content of the metal is brought below.04%, when the steel is finishe...
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Seller's Description:
Good. Small Octavo. Leather Flexboard, 1925. Fourth Edition. 1142 pp. Bound in original black leather flexboard cover. Cover shows moderate rubbing wear along extremties. Foredges gilt. Textblock a bit shaken, binding sound. Pages clean, A small portion of leaves creased. Tome handles well. Previous owner name to title page. Offered by the Antiquarian, Rare, and Collectible department of Better World Books. Your purchase benefits global literacy programs. 100% satisfaction guaranteed.
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Seller's Description:
Very Good. The pages are neat and clean-binding is tight-the cover has a little water stains-the corner boards are showing from rubbing. has ex owner name on back cover-initals are written on the edge.; 100% Satisfaction Guaranteed! Ships same or next business day!
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Seller's Description:
Good. A copy that has been read, but remains in clean condition. All pages are intact, and the cover is intact. The spine may show signs of wear. Pages can include limited notes and highlighting, and the copy can include previous owner inscriptions. At ThriftBooks, our motto is: Read More, Spend Less.