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Lime Kharkiv (Slaked) - 65 UAH poorly soluble in water (about 0.1% at 20 C); density of about 3.4 g / cm 3. Slaked lime Ca (OH) 2. quicklime CaO. Bleaching powder Ca (Cl) OCl. Natrovaya mixture of NaOH and lime slaked lime Ca (OH) 2. limestone (calcium carbonate) CaCO3.
Scope implementation lime versatile and principled. A large consumers of these products are iron and steel, construction industry, paper industry, chemical industry, licorice industry and agriculture. Also, significant amounts wringer of lime used for environmental protection when cleaning the flue gases from sulfur oxide (lime softening water, sedimented organic matter in the water, also produces neutralization of acid otbrosnyh natural and waste water).
With all of this porous pieces of quicklime sparingly absorb water and react to it with the release wringer of considerable heat. As a result, the water evaporates and turns into quicklime loose mass of slaked lime, which called wringer pushonkoy. An excess of water slaked lime appears as a doughy mass. In the construction of slaked lime and sand combine and add that amount of water to form a mushy mass.
This mass called mortar and use to bind bricks in the construction of brick walls and plaster. By the mortar, which is used to bind bricks and exterior plaster, occasionally adding cement to the inside and stucco wringer - plaster. Binding characteristics of slaked lime is based on the fact that slaked lime evenly crystallized wringer and reacting with carbon dioxide air is converted into a solid mass kamneobraznuyu.
Quicklime get calcination (burning) limestone or chalk at 1000-1200 C. The process wringer of burning produced in vertical wringer shaft kilns, lined inside with refractory brick. Charge, ie a mixture of limestone and coke charged into the furnace through the top hole. Pieces of limestone wringer and coke are created their diameter was about 10 cm. Then air and flue gases pass through wringer a charge, and the limestone wringer decomposes uniformly throughout the mass.
Hot gases arising from the combustion of fuel and razlahanii limestone, rising up uniformly cooled by heating charge. Burnt lime falls to the bottom of the furnace, where it is cooled wringer by air supplied from below. Also, building lime used in the manufacture of lime-pozzolanic binders in the production of insulating materials for the production of artificial stone materials wringer silica brick, silicate and penosilikatnyh products, cinder blocks, aerated concrete (hazosylykata), as well as painting structures in the production of dry mixtures: plaster, adhesives, sealing compounds for joints, grout, tile adhesive, masonry warehouses, putties. Agriculture. When applying wringer lime to the soil eliminates harmful to agricultural plants acidity. The soil is enriched with calcium, improves machinability land, accelerated decay turf, with all this significantly reduces a need for huge doses of nitrogen fertilizer. Limestone is used to improve the properties of high ground, for example in agriculture.
The influence of lime raskyslyayut soil replenished supply of calcium in the colloidal complex of the soil increases the availability of phosphorus to plants, improves the physical properties of the soil, its water and air treatment. In agriculture lime used for liming - disinfection of livestock farms, residential premises. In livestock and poultry hydratnaya lime used for feeding to remove calcium deficiency in the diet of animals, and for general sanitation wringer cattle. Metallurgy. Invaluable use of lime in the mining and processing of metallurgical industry. Lime - a necessary component in the technological process of enrichment of polymetallic ores and iron ore mining and processing plants.
Chemicals. Prospective wringer application of hydrated lime and limestone sorbents for highly chemically precipitated calcium carbonate used in the manufacture of high-grade coated paper and as a filler in electronic, electrical, cable, rubber, paint, perfume and pharmaceutical industries. And also lime used to produce calcium hypochlorite, for calcium fluoride. In the petrochemical industry, lime is used as a neutralizer of acid tars. And just as a reagent in the main organic and inorganic synthesis.
In industrialized countries, the consumption wringer of lime in the current time is about 80 kg per capita
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