Environmentally-friendly composite type snow-melting agent and preparation method thereof

Abstract

The invention relates to an environmentally-friendly composite type snow-melting agent and a preparation method thereof. The snow-melting agent is prepared from the following raw materials in parts by weight: 40 to 55 parts of chlorine salt, 45 to 55 parts of organic salt and 1 to 2 parts of a corrosion inhibitor, wherein the chlorine salt is prepared from the following raw materials in parts by weight: 15 to 20 parts of potassium chloride and 25 to 35 parts of ammonia chloride; the organic salt is prepared from the following raw materials in parts by weight: 25 to 30 parts of potassium acetate and 20 to 25 parts of urea; the corrosion inhibitor is one of or a mixture of sodium nitrite and sodium phosphate; and the snow-melting agent is prepared from the following raw materials in parts by weight: 50 parts of chlorine salt, 48 parts of organic salt and 2 parts of a corrosion inhibitor. The snow-melting agent is doped with the corrosion inhibitor; and related corrosiveness tests indicate that the snow-melting agent doped with the sodium phosphate has smallest corrosion effect on metal and can protect the surface of the metal, the metal still can maintain the original metal luster when being soaked into a salt solution, and a good metal corrosion-resistant effect is achieved.

Description

technical field [0001] The invention belongs to the field of road surface snow-melting materials, and in particular relates to an environment-friendly composite snow-melting agent and a preparation method thereof. Background technique [0002] At present, deicing agents at home and abroad are roughly divided into inorganic salt deicing agents, organic salt deicing agents and compound deicing agents. Inorganic salt deicing agents are mainly chlorine salts, which have better snow melting performance and superior economic efficiency. However, after long-term use, people find that now The deicing agent used has many hazards. [0003] A large number of salt deicing agents are used to treat road snow, resulting in excessive salt concentration in snow water after the snow melts. When the vehicle driving causes the salt water to splash or the deicing agent to be sprayed, it is directly applied to the vegetation and the soil surface, and the salt accumulates, which will cause salt s...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an environment-friendly compound snow-melting agent and its preparation method, to solve the technical problems of the current snow-melting agent that is highly polluting and harmful to vegetation; non-obvious technical issues

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