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. 1854 Excerpt: ...part of the furnace; the oxide of iron is then reduced, at a lower stage, where the temperature is more elevated, by the carbonic oxide, and the earthy matters separate in the form of a fusible slag. At a still lower level in the furnace, the reduction of the iron is completed by the carbon, a portion of which also ...
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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. 1854 Excerpt: ...part of the furnace; the oxide of iron is then reduced, at a lower stage, where the temperature is more elevated, by the carbonic oxide, and the earthy matters separate in the form of a fusible slag. At a still lower level in the furnace, the reduction of the iron is completed by the carbon, a portion of which also combines with the difficultly fusible iron, forming a compound which fuses at the temperature existing in that part of the furnace, and runs down into the crucible, where it forms a layer beneath the more fusible and lighter slag; this is allowed to run off over the side of the crucible, so that the latter becomes filled, after a time, with metallic iron. Although hydrogen exists in every part of the blast-furnace, it has no share in the reduction of the ore, since, in its affinity for oxygen, it haa been proved to be inferior to carbonic oxide. The gas which issues from the chimney (or tunnel, as it is commonly called) of the blastfurnace, consists chiefly of carbonic acid, carbonic oxide, hydrogen, and nitrogen; this gas is inflammable, and has been used, in some works, for heating the steam-boilers, and for other purposes. The hydrogen, of course, arises from the decomposition of the water contained in the ore, and in the fuel, and the nitrogen, from the atmospheric air supplied to the furnace. The cast-iron obtained by the above process, contains three or four per cent, of carbon and silicon, with traces of sulphur, phosphorus, and manganese; these impurities render it brittle, and hence unfit for many purposes; it must, therefore, be refined, or purified, and this is usually called the conversion of pig-iron into bar-iron. This process may be divided into two operations, the refining and puddling. The refining furnace is constructed of iron, ..
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Add this copy of Handbook of Chemistry: Theoretical, Practical, and to cart. $27.44, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Handbook of Chemistry: Theoretical, Practical, and to cart. $37.75, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Handbook of Chemistry: Theoretical, Practical, and to cart. $61.90, new condition, Sold by Booksplease rated 4.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2022 by Legare Street Press.
