The Metallurgy of Argentiferous Lead: A Practical Treatise on the Smelting of Silver-lead Ores and the Refining of Lead Bullion Including Reports on Various Smelting Establishments ... in Europe and AmericaC. Lockwood and son, 1891 - 396 стор. |
Інші видання - Показати все
The Metallurgy of Argentiferous Lead: A Practical Treatise on the Smelting ... Manuel Eissler Попередній перегляд недоступний - 2017 |
Загальні терміни та фрази
accretions alloy alumina antimony argentiferous arsenic assay blast furnace blast pipes boiler bottom brick bullion carbonic acid cast-iron cent charcoal charge chimney chloride clay coal coke condensing containing cool copper crucible crust crystallisation cupel CUPELLING FURNACE cupola cupola furnaces damper desilverising diameter fire flue flux fuel fumes fused fusible fusion galena gangue gold hearth heat hole hydrochloric acid impurities inches Jacket Furnace kettle ladled Leadville lime liquation litharge lower matte melting metallic lead mines mixed mixture molten moulds ounces oxide of iron oxide of lead oxidised pipe placed plate portion precipitate produced proportion protoxide of iron quantity reaction reduced refining removed retort reverberatory furnaces rich lead roasting Section separation shaft sheet-iron shown in Fig side silica silver skimmings slag smelters smelting speiss spout stack steam sulphate sulphide of lead sulphuric acid syphon temperature tons tuyeres upper wall water jacket zinc zone
Популярні уривки
Сторінка ii - THE METALLURGY OF SILVER. A Practical Treatise on the Amalgamation, Roasting, and Lixiviation of Silver Ores. Including the Assaying, Melting, and Refining of Silver Bullion. By M. EISSLER, Author of "The Metallurgy of Gold,
Сторінка ii - The whole process of gold milling:, from the breaking of the quartz to the assay of the bullion, Is described in clear and orderly narrative and with much, but not too much, fulness of detail.
Сторінка ii - The Metallurgy of Gold. A Practical Treatise on the Metallurgical Treatment of Gold-bearing Ores, including the Processes of Concentration and Chlorination, and the Assaying, Melting and Refining of Gold.
Сторінка ii - "From first to last the book is thoroughly sound and reliable." — Colliery Guardian. "For chemists, practical miners, assayers, and investors alike, we do not know of any work on the subject so handy and yet so comprehensive."— Glasgow Herald.
Сторінка 96 - ... sows" occurs also in nearly all cases during the stoppages, when the small doughy masses of reduced metallic iron have an opportunity to stick to the bottom of the crucible, which is no longer protected by a liquid mass. It is well known to every metallurgist that whenever the foundation is laid for a "sow...
Сторінка 99 - The bottom stone, previously put in, is now provided with a thin coating of clay or brasque (a composition of powdered charcoal and clay in varying proportions), which is rammed in with a wooden stamper, after wetting it until it just coheres in lumps. The dam is made in the same manner, but of very good fire-clay, and taking care to make it extremely hard. It has a steep pitch towards the bottom.
Сторінка 141 - ... proper commences. Previous to putting on the blast, however, the front is put in ; that is, the space h under the bridge g is closed up with bricks of stiff clay, rammed in tightly, and reaching a few inches below the damplate. Then the fore-hearth is also covered with clay, pounded down tightly. All the tuyeres, except the four nearest the front, are closed with clay stoppers; their respective wind-bags are tied up with strings, to prevent the escape of wind. The nozzles of the four tuyeres...
Сторінка iii - THE METALLURGY OF ARGENTIFEROUS LEAD. A Practical Treatise on the Smelting of Silver.Lead Ores and the Refining of Lead Bullion. Including Reports on various Smelting Establishments and Descriptions of Modern Smelting Furnaces and Plants in Europe and America. By M. EISSLER, ME, Author of "The Metallurgy of Gold,
Сторінка 99 - ... (a composition of powdered charcoal and clay in varying proportions), which is rammed in with a wooden stamper, after wetting it until it just coheres in lumps. The dam is made in the same manner, but of very good fire-clay, and taking care to make it extremely hard. It has a steep pitch toward the bottom. The tap-hole is made by pounding clay into the space left for that purpose and turning a pointed stick on the outside round a central axis, thus circumscribing a cone. The taphole may be in...
Сторінка 335 - ... stop running. A diminution of the iron-ore and increase of the limestone also worked unfavorably, and the more so the less oxide of iron was in the smelting-mixture. Pure silicates of lime cannot be perfectly liquefied by the temperature prevailing in a leadfurnace. The tapping is done at these works in the old manner, by piercing the tap-hole with a bar as soon as the lead has risen to the slag-spout. The tap-hole is just high enough above the bottom of the hearth to leave a suitable quantity...