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Books Books 1 - 10 of 10 on Hence, if a charge of ore is first lixiviated with ordinary sodium hyposulphite solution....
" Hence, if a charge of ore is first lixiviated with ordinary sodium hyposulphite solution to dissolve the silver chloride, and, subsequently, with cuprous hyposulphite, — this solvent is called the extra-solution, — an additional amount of silver is... "
Minutes of Proceedings of the Institution of Civil Engineers - Page 457
by Institution of Civil Engineers (Great Britain) - 1884
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Transactions, Volume 13

American Institute of Mining, Metallurgical, and Petroleum Engineers, American Institute of Mining Engineers - Metallurgy - 1885
...chloride, and, subsequently, with cuprous hyposulphite, — this solvent is called the extra-solution, — an additional amount of silver is extracted which would have been lost in the tailings by working according to the old method alone. This process can also be introduced with profit to extract...
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Transactions of the American Institute of Mining Engineers, Volume 13

American Institute of Mining Engineers - Mineral industries - 1885
...chloride, and, subsequently, with cuprous hyposulphite, — this solvent is called the extra-solution, — an additional amount of silver is extracted which would have been lost in the tailings by working according to the old method alone. This process can also be introduced with profit to extract...
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Elements of Metallurgy: A Practical Treatise on the Art of Extracting Metals ...

John Arthur Phillips - Metallurgy - 1887 - 848 pages
...ore is first washed by a solution of sodium hyposulphite to remove chloride of silver, and afterwards with cuprous hyposulphite, the solution of the latter..."extra solution," an additional amount of silver is obtained, which would have been lost in the tailings if treated by sodium hyposulphite alone. The process...
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The Lixiviation of Silver-ores with Hyposulpite Solutions: With Special ...

Carl August Stetefeldt - Silver - 1888 - 233 pages
...chloride, and, subsequently, with cuprous hyposulphite, — this solvent is called the extra-solution, — an additional amount of silver is extracted which would have been lost in the tailings by working according to the old method alone. Or if the roasted ore contains caustic lime, and is treated...
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Annual Report of the State Mineralogist for the Year Ending ..., Issue 8

California State Mining Bureau - Geology - 1888
...subsequently, with a solution containing cuprous hyposulphite — this solvent is called the extra-solution — an additional amount of silver is extracted which would have been lost in the tailings by working according to the old method alone. Or, if the roasted ore contains caustic lime,, and is...
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The Mining Engineer, Volume 4

Mineral industries - 1893
...to dissolve the silver chloride, and subsequently with cuprous hyposulphite (this solvent is called the extra solution) an additional amount of silver...extracted, which would have been lost in the tailings, by working according to the old method alone. Or, if the roasted ore contain caustic lime and be treated...
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The Lixiviation of Silver-ores with Hyposulphite Solutions: With Special ...

Carl A. Stetefeldt - Silver - 1895 - 210 pages
...a double-salt of sodium and cuprous hyposulphite,—this solvent is called the extra-solution—an additional amount of silver is extracted which would have been lost in the tailings by working according to tbe old method alone. Russell also discovered that lead can be completely separated...
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Hyposulphite lixiviation ; The Chlorination process ; Copper smelting and ...

International Correspondence Schools - Technology & Engineering - 1902
...Russell solution composed of sodium-copper thiosulphate, or cupreous hyposulphate, an additional quantity of silver is extracted, which would have been lost in the tailings by the old method. 47. The Precipitation of Lead. — The carbonate of lead, PbCO,, is insoluble in...
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A textbook on metallurgy of gold, silver, copper, lead, and zinc, Volume 4

International Correspondence Schools - Technology & Engineering - 1902
...solution composed of sodium-copper ti4iosulphate, or cupreous hyposulphate, an additional quantity of silver is extracted, which would have been lost in the tailings by the old method. 47. The Precipitation of Ijead. — The carbonate of lead, PbCO,, is insoluble in...
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International library of technology: a series of textbooks for ..., Volume 22

International Textbook Company - Agriculture - 1902
...Russell solution composed of sodium-copper thiosulphate, or cupreous hyposulplmte, an additional quantity of silver is extracted, which would have been lost in the tailings by the old method. 47. The Precipitation of Lead. — The carbonate of lead, PbCOt, is insoluble in...
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