Download or read book The Hydro metallurgy of Copper written by Manuel Eissler and published by . This book was released on 1902 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Rudimentary Treatise on Coal and Coal Mining written by Warington Wilkinson Smyth and published by . This book was released on 1900 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rudimentary Treatise on the Art of Painting on Glass Or Glass staining written by M. A. Gessert and published by . This book was released on 1857 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Book Catalogue written by and published by . This book was released on 1854 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Journal of Mining written by and published by . This book was released on 1867 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Willis s Price Current A Catalogue of Superior Second hand Books Ancient and Modern No CLIV CLXXXVII written by Willis and Sotheran and published by . This book was released on 1860 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of the California State Library written by California State Library and published by . This book was released on 1889 with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A rudimentary treatise on the Metallurgy of Copper Being a concise introduction to the methods of seeking mining and smelting the ores of copper etc written by Robert H. Lamborn and published by . This book was released on 1860 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Visible Universe written by John Ellard Gore and published by . This book was released on 1893 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Supplement to Allibone s Critical Dictionary of English Literature and British and American Authors written by John Foster Kirk and published by . This book was released on 1891 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Rudimentary Treatise on the Metallurgy of Copper written by Robert H. Lamborn and published by . This book was released on 1860 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Crosthwaite s Register of facts and occurrences relating to literature the sciences the arts written by Crosthwaite and co and published by . This book was released on 1860 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Rudimentary Treatise on the Metallurgy of Copper written by Robert H. Lamborn and published by Rarebooksclub.com. This book was released on 2013-09 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1860 edition. Excerpt: ...is required in properly conducting this operation, and great care is necessary in drawing the scraper along the surface of the metal, so as not to take out any of the valuable lower stratum along with the slag. When the workman by a want of attention allows copper to mix with the slags, so that they hold more than about a quarter of a per cent., he is compelled to resmelt them free of charge; a regulation that serves as a check to secure his good working. When the furnace is skimmed, it is the usual plan to let down a second charge of ore, and fuse and skim in the same manner as above, before tapping the hearth to let out the matt. When sufficient metal is collected, the tapping is accomplished by breaking out the clay stopper, and thus opening a communication between the lower part of the hearth and the exterior. From this aperture the matt is run directly into a vat of water 6 or 8 feet deep and 4 to 5 feet square, at the bottom of which is a box with a perforated bottom that receives the granules thus produced, and which may be raised by a crane and the contents removed to the yard to dry ready for the next operation. Another plan is to run the matt into moulds, and thus form pigs, which are stamped to a powder before going to process III. Since at the time of throwing the ore into the furnace the hearth is at a high heat, smelting soon sets in; the sulphides of iron and copper are formed and sink to the bottom. The silica combined with copper, gives it up to the sulphur, combines with the oxides of iron and other bases, and rises to the top, forming a distinct layer of Blag. The tin that may be present goes partly into the slag as an oxide, while the antimony and arsenic combining with the copper are absorbed into the matt. Where...

Download or read book Catalogue of the Library of the Boston Athenaeum written by and published by . This book was released on 1880 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book A Critical Dictionary of English Literature and British and American Authors Living and Deceased from the Earliest Accounts to the Latter Half of the Nineteenth Century written by Samuel Austin Allibone and published by . This book was released on 1899 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Critical Dictionary of English Literature and British and American Authors Living and Deceased from the Earliest Accounts to the Middle of the Nineteenth Century written by Samuel Austin Allibone and published by . This book was released on 1892 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: