A Textbook on Metallurgy of Gold, Silver, Copper, Lead, and ZincInternational Textbook Company, 1902 |
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Σελίδα 2
... b or some such arrangement as that shown in Fig . 1. Upon this ore a solu- tion containing 2 per cent . sodium hyposulphite is poured and i L allowed to percolate through the ore into the beaker d 2 § . 33 HYPOSULPHITE LIXIVIATION.
... b or some such arrangement as that shown in Fig . 1. Upon this ore a solu- tion containing 2 per cent . sodium hyposulphite is poured and i L allowed to percolate through the ore into the beaker d 2 § . 33 HYPOSULPHITE LIXIVIATION.
Σελίδα 4
... containing starch produces a blue color , and advantage is taken of this fact to determine the percentage of hyposulphite in a solution . If a small quantity of starch is added to a hyposulphite solution and a solution of iodine is ...
... containing starch produces a blue color , and advantage is taken of this fact to determine the percentage of hyposulphite in a solution . If a small quantity of starch is added to a hyposulphite solution and a solution of iodine is ...
Σελίδα 13
... containing wood shavings . A stream of water is allowed to flow into these shavings with the solution from the tanks , and by the dilution of this solution the silver , lead , and anti- mony chlorides are deposited on the shavings ...
... containing wood shavings . A stream of water is allowed to flow into these shavings with the solution from the tanks , and by the dilution of this solution the silver , lead , and anti- mony chlorides are deposited on the shavings ...
Σελίδα 14
... containing the silver , as before stated , is run directly from the leaching vats b ,, Fig . 2 , into the precipitating tanks f . The precipitating tanks are usually 8 feet in diam- eter and 12 feet deep . When it is possible , these ...
... containing the silver , as before stated , is run directly from the leaching vats b ,, Fig . 2 , into the precipitating tanks f . The precipitating tanks are usually 8 feet in diam- eter and 12 feet deep . When it is possible , these ...
Σελίδα 15
... containing silver must be added to neu- tralize it . The precipitated silver sulphide is left in the bottom of the precipitating tanks until a number of precipitations have been made , then it is collected on filter , shown in Fig . 2 ...
... containing silver must be added to neu- tralize it . The precipitated silver sulphide is left in the bottom of the precipitating tanks until a number of precipitations have been made , then it is collected on filter , shown in Fig . 2 ...
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A Textbook on Metallurgy of Gold, Silver, Copper, Lead, and Zinc (Classic ... International Correspondence Schools Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
A Textbook On Metallurgy of Gold, Silver, Copper, Lead, and Zinc International Correspondence Schools Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
alloy amount amperes anode antimony arsenic assay base bullion blast furnace bottom carried cathode cent charge chemical chlorine circuit clay coal coke condensation conductor containing cool copper crucible crust crystals cupellation deposited desilverization dilute dioxide dissolved distillation effect electricity electrodes electrolyte electromotive force ferrous filter fireclay flow flues fluxes fuel fumes fused fusible galena gases gold grams hearth heat hyposulphite impurities inches iron jackets kettle leaching lead oxide lime liquid litharge loss material matte mechanical melted metallic zinc method mixed mixture molds nace obtained operation ounces pass pipe plates pounds practice precipitate present produced proportion quantity reduced refining removed resistance retorts reverberatory furnace roasting separate shown in Fig silica silver skimmed slag smelters smelting sodium solution specific gravity sulphate sulphuric acid tank tap hole temperature tion treatment tuyeres usually volatilization weight zinc oxide zinc sulphide