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Low-corrosion complex chloride snow-melting agent

A snow-melting agent and low-corrosion technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of unstable composition performance, high sodium ion content, high corrosion of carbon steel, etc., and achieve high cost performance and easy availability of raw materials , reduce the effect of corrosion

Inactive Publication Date: 2013-04-24
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In order to solve the problems of the chlorine salt deicing agent in the prior art, such as high corrosion to carbon steel, high sodium ion content, affecting plant growth, unstable performance between components and refreezing after snow melting, the present invention provides A low-corrosion composite chlorine-salt deicing agent that can effectively reduce the corrosion of carbon steel and the damage to concrete, improve the salt-tolerant growth ability of plants, and inhibit heavy freezing

Method used

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  • Low-corrosion complex chloride snow-melting agent
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  • Low-corrosion complex chloride snow-melting agent

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Take the preparation of 100g of low-corrosion composite chlorine salt deicing agent as an example, which contains the following raw materials in proportions by mass:

[0036]

[0037] The number average molecular weight of the said polyethylene glycol is 2000-10000.

[0038] The preparation method of above-mentioned deicing agent is made up of the following steps:

[0039] (1) Mix calcium chloride dihydrate and magnesium chloride hexahydrate according to the above mass ratio, mechanically pulverize, and pass through a 50-mesh sieve to obtain a mixture of calcium and magnesium chloride salts.

[0040] (2) Mix other raw materials according to the above-mentioned ratio of parts by mass, stir evenly, and pass through a 100-mesh sieve to obtain an additive mixture.

[0041] (3) Put the mixture of calcium and magnesium chloride salts in step (1) and the additive mixture in step (2) into a mixer and stir evenly, dry at high temperature, granulate into a particle size of 5 ...

Embodiment 2

[0043] Take the preparation of 100g of low-corrosion composite chlorine salt deicing agent as an example, which contains the following raw materials in proportions by mass:

[0044]

[0045] Its preparation method is identical with embodiment 1.

Embodiment 3

[0047] Take the preparation of 100g of low-corrosion composite chlorine salt deicing agent as an example, which contains the following raw materials in proportions by mass:

[0048]

[0049] Its preparation method is identical with embodiment 1.

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Abstract

The invention relates to a low-corrosion complex chloride snow-melting agent. The calcium chloride and the magnesium chloride are used as a snow-melting main material, the sodium gluconate, zinc salt, amides and polyol compound and glycine betaine are added so as to inhibit the corrosion of a cathode and an anode of a carbon steel; a stable absorption film is formed on the surface of the carbon steel and the concrete so as to effectively reduce the corrosion to the carbon steel and the damage to the concrete; the inhibition rate can be used for achieving more than 80%; and furthermore, the salt-tolerance growing capability of a plant can be effectively improved. The snow-melting agent provided by the invention has low freezing point, can be used at the severe cold area at minus 40 DEG C at the highest, the snow-melting speed is fast, and re-freezing is inhibited; the snow-melting agent is free from phosphorus element and pollution-free, the precipitatin reaction cannot occur between components to influence the performance. The snow-melting agent has the advantages of small damage to a road surface, easily obtained raw materials, and high cost performance; and therefore, the practical applicability is strong and the large-scale use is achieved.

Description

technical field [0001] The invention belongs to the technical field of deicing agent research, in particular to a low-corrosion compound chlorine salt deicing agent. Background technique [0002] Snow-melting agent is a kind of chemical, which can reduce the freezing temperature of the aqueous solution by using salt dissolved in water to achieve the effect of snow-melting. The commonly used snow-melting agent is a mixture of chloride salts. This type of deicing agent has the advantages of fast melting speed, low freezing point, and high cost performance, and is widely used. [0003] The preparation method of the deicing agent provided by US Patent No. 6,149,834 is to use desugared beetroot syrup as a corrosion inhibitor, mix it with chloride salt, and add a certain amount of natural crude protein at the same time to make a new deicing agent. The deicing agent overcomes the corrosion of road steel bars, but due to the high price of protein and the complicated separation proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
CPCC09K3/185
Inventor 陈亚芍刘福亮弥海晨易媛胡婷婷王梦
Owner SHAANXI NORMAL UNIV
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