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Environment-friendly salt for ice and snow melting and preparation method thereof

A kind of salinity, environment-friendly technology, applied in the direction of chemical instruments and methods, other chemical processes, etc., can solve the problem of high price, achieve the effect of low cost, low corrosion, and save construction cost

Inactive Publication Date: 2013-11-13
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there are very few salt compounds independently developed by our country, and we mainly buy products such as MAFILON produced by Maeda Co., Ltd. in Japan, which are expensive, about 10,000 yuan / ton

Method used

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  • Environment-friendly salt for ice and snow melting and preparation method thereof
  • Environment-friendly salt for ice and snow melting and preparation method thereof
  • Environment-friendly salt for ice and snow melting and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for preparing environment-friendly snow melting salt, the method comprises the following steps:

[0039] Step 1, take the following components according to weight percentage:

[0040] Magnesium acetate 10g, calcium acetate 30g, calcium oxide 5g, basalt 30g, aluminate coupling agent 15g, silica gel 10g;

[0041] Step 2, put the weighed magnesium acetate, calcium acetate, calcium oxide and silica gel into a stirring pot, and stir evenly at room temperature (25°C) for 5 minutes;

[0042] Step 3: put the product stirred in Step 2 into a mineral powder briquetting machine and grind it for 10 minutes, then mix it evenly with a modifier, put it in an oven after mixing, and keep it at a constant temperature for 3 hours at 120°C to obtain a mixture;

[0043]Step 4, put the basalt into the mineral powder briquetting machine and grind for 15 minutes, then add the ground porous mineral material and the mixture obtained in Step 3 to the ball mill and grind for 15 minutes t...

Embodiment 2

[0046] The preparation method of this embodiment is as follows:

[0047] Step 1, take the following components according to weight percentage:

[0048] Magnesium acetate 15g, calcium acetate 45g, calcium oxide 2g, basalt 23g, aluminate coupling agent 5g, silica gel 10g.

[0049] Step 2, put the weighed magnesium acetate, calcium acetate, calcium oxide and silica gel into a stirring pot, and stir evenly at room temperature (25°C) for 10 minutes;

[0050] Step 3: put the product stirred in Step 2 into a mineral powder briquetting machine and grind it for 20 minutes, then mix it evenly with a modifier, put it in an oven after mixing, and keep it at a constant temperature for 3 hours at 140°C to obtain a mixture;

[0051] Step 4, put the basalt into the mineral powder briquetting machine and grind for 20 minutes, then add the ground porous mineral material and the mixture obtained in Step 3 to the ball mill and grind for 20 minutes to obtain powder granular salt;

[0052] Step 5...

Embodiment 3

[0054] The preparation method of this example is the same as that of Example 1, except that the components weighed in Step 1 are: 13.3g of magnesium acetate, 31.7g of calcium acetate, 5g of calcium oxide, 10g of basalt, and aluminate coupling agent 20g, silica gel 20g.

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Abstract

The invention discloses an environment-friendly salt for ice and snow melting and a preparation method thereof. The salt comprises, based on the weight percentage, the following compositions: 40% to 60% of snow-melting agent, 2% to 5% of heat-release agent, 10% to 40% of porous mineral aggregate, 10% to 20% of desiccator and 5% to 20% modifying agent. The method in the invention has simple process, low cost and good snow-melting effect; the snow-melting agent in the salt mainly comprises calcium acetate and magnesium acetate which have very small corrosivity to surrounding environment in comparison with the snow agent such as calcium chloride and sodium chloride used in MAFILON and other salts and can play a good role in environmental protection.

Description

technical field [0001] The invention relates to the field of preparation of road surface ice and snow melting materials, in particular to an environment-friendly ice and snow melting salt and a preparation method thereof, which are mainly used for melting snow on asphalt road surfaces. Background technique [0002] In the cold winter, many highways and urban roads often suffer from ice and snow hazards. After the snow, the snow is compacted under the action of the vehicle load. When the temperature rises at noon, the snow melts, and it will freeze again when the temperature drops at night, resulting in a sharp decline in the anti-skid performance of the road surface, leading to traffic accidents. . According to statistics, about 15% to 30% of traffic accidents in winter are related to road snow. [0003] At present, the most commonly used ice-breaking method is to sprinkle salt on the road surface, artificial and mechanical removal methods and other snow and ice removal me...

Claims

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Application Information

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IPC IPC(8): C09K3/18C04B24/04C04B22/06
Inventor 夏慧芸于志远宋莉芳高莉宁陈华鑫杨佩佩
Owner CHANGAN UNIV
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