LIXIVIATION A SUCCESS.
From Mr Holdredge, at attache of the Ural Company's mill at lone, who waain town yesterday, we learn that the leaching process has proved a success in the works with which he is connected. The works now reduce five and a haK tons of ore per day, which give an average daily yield ofj $500. The capacity for leaching is not equal to the crushing capacity of tbe mill, and on this account the stamps are only run 12 hours a day, while the leaching works are run the. entire 24. It is the intention to increase the capacity of the entire works to 12 tons per day, to which end force pumps have been ordered from the East. The object of these pumps is to force the leaching liquor up through the pulp in the leaching tanks, and thus obtain a more rapid and thorough lixiviation. The ores from the mines of the Ural Company contain a considerable percentage of gold, and to save this, the pulp is amalgamated on shaking tables after the silver 13 taken from it. Mr Holdredge also informed us that Col. Raymond is energetically working his mines ' at Lodi. These are base-metal mines, and the ore is sacked and shipped to San Francisco, via' Wadsworth. Ten tons is the average daily shipment, and the ore ranges in value from $150 to $400 per ton. — Reese, River Reveille.
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Bibliographic details
Otago Witness, Issue 1343, 25 August 1877, Page 4
Word Count
236LIXIVIATION A SUCCESS. Otago Witness, Issue 1343, 25 August 1877, Page 4
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