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. 1873 Excerpt: ...raw 2 3 Limetone 2-0 Lead matte roasted in kilns 4.3 Fluor spar 20 Lead matte roasted in kilns and stalls 84 Hearth, etc 72 Pyrites 90 141-2 Thus, matte and ore form but 26 parts to 100 slag. On September 16, 1869, the charge was: First sl-g.100 Roasted first matte 20 Fluor spar 10 Copper slag 5 134 Labor and pressure ...
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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. 1873 Excerpt: ...raw 2 3 Limetone 2-0 Lead matte roasted in kilns 4.3 Fluor spar 20 Lead matte roasted in kilns and stalls 84 Hearth, etc 72 Pyrites 90 141-2 Thus, matte and ore form but 26 parts to 100 slag. On September 16, 1869, the charge was: First sl-g.100 Roasted first matte 20 Fluor spar 10 Copper slag 5 134 Labor and pressure of blast are the same as before. Of fuel 13-14 per cent, is consumed, equal to 17--18 per cent, of the slag; or 70--75 per cent, of the matte and ore. Products: --Lead=0.15--018 per cent. (44--52 oz.) silver. 2nd matte--0-10--0 20 per cent, silver, 21 per cent. lead, and 15 per cent, copper. 2nd slag--0-002 per cent. (5 oz.) silver, 1-5--2 per cent, lead. This slag is thrown away. Ther are no full analyses of the slag, but the proportion of some of its consti tuents is as follows: Silica 29-7 Zinc oxide 85 Lead oxide, 2-5 Siiver.' '.'.'.;.'..'.'. 0 0025 The fxtremely basic character of this slag, and its large percentage of zinc, make the management of the furnace very difficult. When the Piltz furnace was first introduced at the Muldner works, its height was made 22 feet; but its reducing action was too great for the slag, and it had to be cut down. A new furnace which is to be built will bo eleven feet eight inches high, the diameter of five feet en.; inche being retained. Its sides wi 1 be straight instead of ii/clined. Ihlrd and Fourth Fusions: -The second matte is twice roasted and resmelted with first slag, the object being to concentrate it to about 23 per cent, copper, when it is looked upon as a copper matte. These fusions form successive steps in the operation last described. The working of the fu nace is not stopped, but a second or third matte is merely substituted for the first, for a few days, or until the whole of the material at ...
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Add this copy of Notes of A Metallurgical Journey in Europe ... to cart. $18.89, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2006 by University of Michigan Library.
Add this copy of Notes of A Metallurgical Journey in Europe ... to cart. $32.06, new condition, Sold by Ria Christie Books rated 4.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2006 by University of Michigan Library.
Add this copy of Notes of a Metallurgical Journey in Europe to cart. $32.12, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2023 by Outlook Verlag.
Add this copy of Notes of a Metallurgical Journey in Europe to cart. $32.73, new condition, Sold by Ria Christie Books rated 4.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2023 by Outlook Verlag.
Add this copy of Notes of a Metallurgical Journey in Europe to cart. $34.33, new condition, Sold by Media Smart rated 4.0 out of 5 stars, ships from Hawthorne, CA, UNITED STATES, published 2019 by Wentworth Press.
Add this copy of Notes of a Metallurgical Journey in Europe to cart. $37.63, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2019 by Wentworth Press.
