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leaching

leaching

leaching Sentence Examples

  • The result is a great destruction of the humus of the soil, and great leaching and washing, especially in the light loams of the hill country of the United States.

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  • The ores, having been broken and ground, generally in tube mills, until they pass a 150 to 200-mesh sieve, are transferred to the leaching vats, which are constructed of wood, iron or masonry; steel vats, coated inside and out with pitch, of circular section and holding up to woo tons, have come into use.

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  • If the burningup of humus and the leaching of the soil could be prevented, there is no reason whyia cotton soil should not produce good crops continuously for an indefinite time.

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  • There can be no question that a deep soil is better for the cottonplant; but the expense of obtaining it, the risk of injuring the soil through leaching, and the danger of bringing poor soil to the surface, have led many planters to oppose this plan.

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  • The leaching is generally carried out with a strong, medium, and with a weak liquor, in the order given; sometimes there is a preliminary leaching with a weak liquor.

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  • This method of extraction contrasts favourably in time with the leaching process, which is so slow that over io,000,000 tons of ore are always under treatment on the immense leaching floors of the company's works in Spain.

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  • At Rio Tinto the ore is divided into three classes: (I) The poorest, containing an average of about I i% of copper, which is treated locally by leaching with water and liquor containing ferric sulphate, whereby the copper is dissolved out and afterwards precipitated by pig-iron, whilst the residue is exported as ordinary iron-pyrites.

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  • The ore, supposed to have been salt-roasted, is charged loosely into the leaching vat and treated with water (to which sulphuric acid or copper sulphate may have been added), to remove soluble salts, which might later on be precipitated with the silver (base-metal chlorides), or overcharge the solution (sodium chloride and sulphate), or interfere with the solvent power (sodium sulphate).

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  • In leaching, the silver ore is subjected to the action of solvents, which dissolve the silver; from the solution the silver is precipitated and converted into a marketable product.

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  • Ferrous chloride is not much used; the Douglas-Hunt process uses a mixture of salt and ferrous sulphate which involves the formation of ferrous chloride, and the new Douglas-Hunt process employs sulphuric acid in which ferrous chloride is added after leaching.

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  • Sodium chloride, characteristic of the Augustin process in which the ores, after a chloridizing roast, were extracted with brine, and the silver precipitated by copper, has almost wholly fallen into disuse; and potassium cyanide, which has become a very important solvent for finely divided gold, is rarely used in leaching silver ores.

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  • In all processes the silver ore is finely crushed, usually by rolls, as, because making few fines, they leave the ore in the best condition for leaching.

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  • Bromadiolone is readily adsorbed on soil, rich in clay and organic compounds, with no leaching; degradation in soil is significant.

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  • By leaching water through the wood ash a substance called lye was obtained, which was strongly alkaline.

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  • To obtain the rare, pure copper requires smelting, leaching, or electrolysis.

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  • The role of sulfur and nitrogen in acidic deposition, soil acidification and aluminum leaching.

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  • The effective diameter of the fiber is also reduced through leaching of minerals from the surface layer.

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  • leaching losses.

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  • Standard leaching tests are largely not capable of evaluating the long term leaching behavior of AFBC residues at disposal sites.

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  • leaching of nitrate ).

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  • leaching of nutrients.

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  • By leaching water through the wood ash a substance called lye was obtained, which was strongly alkaline.

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  • The result is a great destruction of the humus of the soil, and great leaching and washing, especially in the light loams of the hill country of the United States.

    0
    0
  • There can be no question that a deep soil is better for the cottonplant; but the expense of obtaining it, the risk of injuring the soil through leaching, and the danger of bringing poor soil to the surface, have led many planters to oppose this plan.

    0
    0
  • If the burningup of humus and the leaching of the soil could be prevented, there is no reason whyia cotton soil should not produce good crops continuously for an indefinite time.

    0
    0
  • The ores, having been broken and ground, generally in tube mills, until they pass a 150 to 200-mesh sieve, are transferred to the leaching vats, which are constructed of wood, iron or masonry; steel vats, coated inside and out with pitch, of circular section and holding up to woo tons, have come into use.

    0
    0
  • The leaching is generally carried out with a strong, medium, and with a weak liquor, in the order given; sometimes there is a preliminary leaching with a weak liquor.

    0
    0
  • At Rio Tinto the ore is divided into three classes: (I) The poorest, containing an average of about I i% of copper, which is treated locally by leaching with water and liquor containing ferric sulphate, whereby the copper is dissolved out and afterwards precipitated by pig-iron, whilst the residue is exported as ordinary iron-pyrites.

    0
    0
  • This method of extraction contrasts favourably in time with the leaching process, which is so slow that over io,000,000 tons of ore are always under treatment on the immense leaching floors of the company's works in Spain.

    0
    0
  • Ferrous chloride is not much used; the Douglas-Hunt process uses a mixture of salt and ferrous sulphate which involves the formation of ferrous chloride, and the new Douglas-Hunt process employs sulphuric acid in which ferrous chloride is added after leaching.

    0
    0
  • In leaching, the silver ore is subjected to the action of solvents, which dissolve the silver; from the solution the silver is precipitated and converted into a marketable product.

    0
    0
  • Sodium chloride, characteristic of the Augustin process in which the ores, after a chloridizing roast, were extracted with brine, and the silver precipitated by copper, has almost wholly fallen into disuse; and potassium cyanide, which has become a very important solvent for finely divided gold, is rarely used in leaching silver ores.

    0
    0
  • In all processes the silver ore is finely crushed, usually by rolls, as, because making few fines, they leave the ore in the best condition for leaching.

    0
    0
  • The ore, supposed to have been salt-roasted, is charged loosely into the leaching vat and treated with water (to which sulphuric acid or copper sulphate may have been added), to remove soluble salts, which might later on be precipitated with the silver (base-metal chlorides), or overcharge the solution (sodium chloride and sulphate), or interfere with the solvent power (sodium sulphate).

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  • Soil contamination: The Earth's soil is becoming contaminated by pollutants in underground storage tanks, the application of pesticides and the leaching of waste from landfills into the ground.

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  • SIGG certifies that the bottles have 0.0% leaching, and all bottles exceed FDA requirements.

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  • Place compost in burlap or another leaching bag.

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  • It is little wonder that these chemicals are leaching into the rice grown there and thus showing up in the food our infants eat.

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  • Nutrient leaching is a significant source of water pollution.

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  • During the tattoo process, thousands of holes were created by the tattoo machine's needle, and those holes need to be protected to prevent infection, promote healing and keep your ink from leaching out.

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  • Traditionally, lye was made at home by leaching water through wood ashes.

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  • Considering handwashing your tank top to avoid the color from leaching out.

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