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Agricultural lime, also called aglime, agricultural limestone, garden lime or liming, is a soil additive made from pulverized limestone or chalk. The primary active component is calcium carbonate . Additional chemicals vary depending on the mineral source and may include calcium oxide .
The electric power consumption of an efficient plant is around 20 kWh per tonne of lime. This additional input is the equivalent of around 20 kg CO 2 per ton if the electricity is coal-generated. Thus, total emission may be around 1 tonne of CO 2 for every tonne of lime even in efficient industrial plants, but is typically 1.3 t/t. [14]
The capital, operating and maintenance costs per short ton of SO 2 removed (in 2001 US dollars) are: For wet scrubbers larger than 400 MW, the cost is $200 to $500 per ton; For wet scrubbers smaller than 400 MW, the cost is $500 to $5,000 per ton; For spray dry scrubbers larger than 200 MW, the cost is $150 to $300 per ton
Buxton Lime Firms (BLF) was formed by 13 competing quarry owners in 1891. BLF controlled the price of stone and lime from its 17 initial quarries. BLF owned over 1500 acres of land with about 100 lime kilns and 3 collieries. It produced 360,000 tons of limestone and 280,000 tons of lime per year.
Burning (calcination) of calcium carbonate in a lime kiln above 900 °C (1,650 °F) [4] converts it into the highly caustic and reactive material burnt lime, unslaked lime or quicklime (calcium oxide) and, through subsequent addition of water, into the less caustic (but still strongly alkaline) slaked lime or hydrated lime (calcium hydroxide ...
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The Michigan Limestone and Chemical Company operated the world's largest limestone quarry (Michigan Limestone; a/k/a the "Calcite Quarry"; "Calcite Plant and Mill"; and "Carmeuse Lime and Stone"), which is located near Rogers City in Presque Isle County, Michigan. It was formed and organized in 1910; however, production did not begin until 1912.
It is the raw material for the manufacture of quicklime (calcium oxide), slaked lime (calcium hydroxide), cement and mortar. [59] Pulverized limestone is used as a soil conditioner to neutralize acidic soils (agricultural lime). [115] Is crushed for use as aggregate—the solid base for many roads as well as in asphalt concrete. [59]
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