FIELD: anti-icing agents.
SUBSTANCE: invention provides a method for preparing liquid anti-icing composition to remove snow-ice coatings from pavements and to prevent icings, which method resides in that aqueous hydrochloric acid solution interacts with magnesium hydroxide and/or carbonate and calcium hydroxide and/or carbonate suspension in sodium chloride solution at 10-50°C and atmospheric pressure, after which resulting solution of calcium, magnesium, and sodium chlorides with corrosion inhibitor and optionally with bischofite aqueous solution to following composition: 10.0-18.0% calcium chloride, 3.0-8.0% magnesium chloride, 4.0-9.0% sodium chloride, 0.01-0.6% corrosion inhibitor, and water and inert impurities in balancing amount. Composition is characterized by pH 5-9 and summary content of calcium, magnesium, and sodium chloride no less than 20%.
EFFECT: increased economical efficiency of process due to use of inexpensive raw material sources, reduced freezing point of composition, and improved environmental influence.
6 cl, 5 ex
| Title | Year | Author | Number |
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|
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|
RU2305665C1 |
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|
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RU2511245C2 |
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|
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| METHOD FOR PREPARING ANTI-GLAZING REAGENT | 2002 |
|
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| METHOD OF SULPHATE-ION ABSORPTION IN METAL CHLORIDE AQUEOUS SOLUTIONS | 2006 |
|
RU2334678C2 |
