Compositions and preparation of novel non-chloride environment-friendly snow-melting agent

Abstract

The invention discloses compositions and preparation of a novel non-chloride environment-friendly snow-melting agent and belongs to the technical field of snow-melting agents. The novel non-chloride environment-friendly snow-melting agent is a liquid environment-friendly snow-melting agent without chlorine elements. A product is prepared from sodium formate, potassium acetate, glycerol, ethylene glycol, sodium phosphate, sodium tetraborate, alkylphenol ethoxylate and water as raw materials by the steps of weighing, stirring, mixing and cooling. Compared with an existing product, the snow-melting agent and a preparation method disclosed by the invention have the advantages of easiness in uniform spraying, wide range of low temperature adaptation, good snow-melting effects, high snow-meltingspeed, long snow-melting aging, no chlorine, nitrite or other components, no harm to facilities, vehicles, plants, water bodies and the like, no odor, no salting and no slipping after being spread aswell as higher cost performance.

Description

technical field [0001] The invention relates to a deicing agent. Specifically, the invention relates to a liquid environment-friendly deicing agent with organic salt and polyhydric alcohol as main components and no chlorine element. Background technique [0002] There are two types of deicing agent, chlorine salt type and non-chlorine salt type. [0003] Chlorine-salt deicing agent has a wide range of sources and is cheap, and is the most commonly used deicing agent. However, the chloride ion has a small radius and strong penetrating power, which can destroy the protective layer of the metal surface, causing pitting corrosion and stress corrosion cracking of the metal, which is very harmful to infrastructure and driving vehicles. A large amount of chloride ions contained in the chlorine salt deicing agent will block the penetration of water when it penetrates into the soil. Once the chlorine content in the roots of the vegetation is too high, the branches and leaves will w...

AI Technical Summary

Problems solved by technology

However, the chloride ion has a small radius and strong penetrating power, which can destroy the protective layer of the metal surface, causing pitting corrosion and stress corrosion cracking of the metal, which is very harmful to infrastructure and driving vehicles

A large amount of chloride ions contained in chlorine salt deicing agent will block the penetration of water when it penetrates into the soil. Once the chlorine content in the root of the vegetation is too high, the branches and leaves will wither and die, destroying the green vegetation around the road and causing serious damage.

In addition, after the chlorine-salt deicing agent is dissolved in ice and snow, it is discharged into the sides of the road and the surrounding farmland, which makes the surface salinized, pollutes the surface water and groundwater, and affects the ecological balance.

[0004] At present, the non-chloride deicing agents mainly include organic salts such as potassium acetate and calcium magnesium acetate, which cannot be used on a large scale like the chloride deicing agents, mainly in the following aspects: First, the price of acetate The second is that it will emit a pungent sour smell after sowing, the third is that after the acetate is dried, it will leave salt stains on the ground and affect the appearance of the city, and the fourth is that calcium and magnesium acetate will cause water pollution

Therefore, the non-chlorine salt type deicing agent can only be applied to snow removal in airports etc. at present, and cannot be used in a large area

[0005] Although the environmentally friendly deicing agents that have appeared in recent years no longer use sodium chloride as the main component, but use calcium chloride or magnesium chloride, etc., and then introduce corrosion inhibitors, etc., but from a chemical point of view, the chlorine element still exists, and it has not completely improved its effect on the deicing agent. environmental hazards

Moreover, the nitrite contained in corrosion inhibitor components such as sodium nitrite will also pollute surface water and groundwater, and will also cause harm to the health of surrounding residents.

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