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tailings

tailings Sentence Examples

  • The yield reached its lowest point in 1899, but subsequently increased through the application of improved machinery, while the tailings of the old diggings were treated by the cyanide process with profitable results.

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  • This interruption, due to the practical prohibition of the industry by the United States courts, on the ground that it was injuring, through the deposit of tailings, agricultural lands and navigable streams, was lessened, though not entirely removed, by compromises and regulations which permit, under certain restrictions, the renewed exploitation of the ancient river-beds by the hydraulic method.

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  • There are belt conveyers for discharging the gravel and tailings at the end of the vessel remote from the buckets.

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  • The process was introduced in 1858 by Deetken at Grass Valley, California, where the waste minerals, principally pyrites from tailings, had been worked for a considerable time by amalgamation.

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  • The process is rarely applied to ores direct; free-milling ores are generally amalgamated, and the tailings and slimes, after concentration, operated upon.

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  • of gold to the metric ton (2000 ib), is stamped and amalgamated, and the slimes and tailings, containing about 32 dwts.

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  • In the Transvaal the operation occupies 32 to 4 days for fine sands, and up to 14 days for coarse sands; the quantity of cyanide per ton of tailings varies from 0.26 to 0.28 lb, for electrolytic precipitation, and o 5 lb for zinc precipitation.

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  • The placer-miner's cradle and rocking-trough were replaced by puddling troughs stirred by a revolving comb worked by horse power; reservoirs were constructed for the scanty water-supply, bucket elevators were introduced to carry away the tailings; and the natives were confined in compounds.

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  • But the mines continued to be worked, though Strabo records that in his time the tailings were being worked over, and Pausanias speaks of the mines as a thing of the past.

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  • "Chat"-finely crushed flint and limestone yielded as tailings in the lead and zinc minesfinds many uses.

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  • The mines of this one district had produced, up to 1902, $371,248,288, of which $148,145,385 was in gold, $204,653,040 in silver, and the remainder in unclassified tailings.

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  • Further approvals will still be required, principally concerning the environmental impact, the tailings dam and detailed design.

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  • dredge spoils, mining tailings and exhaust gases are unlikely to fall significantly.

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  • In addition, tailings waste originally deposited within the river channels entering the estuary may also be reworked and redeposited.

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  • Even so, production of sewage sludges, dredge spoils, mining tailings and exhaust gases are unlikely to fall significantly.

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  • Can result in water pollution e.g from mine tailings (obvious from water color) Reactions speeded up by warmth.

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  • Uranium extraction has resulted in more than 6 billion tons of radioactive tailings, with significant impact on human health [2] .

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  • The Colorado Rockies are badly affected by toxic mine tailings, for example.

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  • A picture of race day in Wittenoom showed horses running on a blue track made from asbestos tailings.

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  • The mines of this one district had produced, up to 1902, $371,248,288, of which $148,145,385 was in gold, $204,653,040 in silver, and the remainder in unclassified tailings.

    0
    0
  • The yield reached its lowest point in 1899, but subsequently increased through the application of improved machinery, while the tailings of the old diggings were treated by the cyanide process with profitable results.

    0
    0
  • This interruption, due to the practical prohibition of the industry by the United States courts, on the ground that it was injuring, through the deposit of tailings, agricultural lands and navigable streams, was lessened, though not entirely removed, by compromises and regulations which permit, under certain restrictions, the renewed exploitation of the ancient river-beds by the hydraulic method.

    0
    0
  • There are belt conveyers for discharging the gravel and tailings at the end of the vessel remote from the buckets.

    0
    0
  • The process was introduced in 1858 by Deetken at Grass Valley, California, where the waste minerals, principally pyrites from tailings, had been worked for a considerable time by amalgamation.

    0
    0
  • The process is rarely applied to ores direct; free-milling ores are generally amalgamated, and the tailings and slimes, after concentration, operated upon.

    0
    0
  • of gold to the metric ton (2000 ib), is stamped and amalgamated, and the slimes and tailings, containing about 32 dwts.

    0
    0
  • In the Transvaal the operation occupies 32 to 4 days for fine sands, and up to 14 days for coarse sands; the quantity of cyanide per ton of tailings varies from 0.26 to 0.28 lb, for electrolytic precipitation, and o 5 lb for zinc precipitation.

    0
    0
  • The placer-miner's cradle and rocking-trough were replaced by puddling troughs stirred by a revolving comb worked by horse power; reservoirs were constructed for the scanty water-supply, bucket elevators were introduced to carry away the tailings; and the natives were confined in compounds.

    0
    0
  • But the mines continued to be worked, though Strabo records that in his time the tailings were being worked over, and Pausanias speaks of the mines as a thing of the past.

    0
    0
  • "Chat"-finely crushed flint and limestone yielded as tailings in the lead and zinc minesfinds many uses.

    0
    0
  • Can result in water pollution e.g from mine tailings (obvious from water color) Reactions speeded up by warmth.

    0
    0
  • Uranium extraction has resulted in more than 6 billion tons of radioactive tailings, with significant impact on human health [2 ].

    0
    0
  • The Colorado Rockies are badly affected by toxic mine tailings, for example.

    0
    0
  • A picture of race day in Wittenoom showed horses running on a blue track made from asbestos tailings.

    0
    0
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