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A kind of snow melting anti-slip agent and preparation method thereof

An anti-slip agent and alkaline earth metal technology, applied in the field of snow-melting anti-slip agent and its preparation, can solve the problems of corrosion of the metal part of the automobile body, poor snow-melting effect, poor snow-melting effect sustainability, etc. snowmelt effect

Active Publication Date: 2018-05-25
北京环卫集团环卫服务有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, sodium chloride or chloride-salt mixture snow-melting agents have better deicing effects, wide application range, and relatively economical price. However, road anti-slip agents made of chlorides such as calcium chloride and magnesium chloride, which are used as freezing point lowering agents, will damage the car body, etc. Corrosion of metal parts, affecting flora and fauna near the road
Urea-based road anti-skid agents have poor snow-melting effects, and many existing snow-melting agents have poor snow-melting effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The snow-melting anti-skid agent of embodiment 1 among the present invention, such as the fatty acid salt of basic metal by weight, the sodium acetate 136g of acetic acid salt, joins in the 500ml aqueous solution that has dissolved 112.2g potassium hydroxide, stirs at normal temperature, makes it reaction, then add calcium sulfate and stir the reaction. The chemical formula for this reaction is as follows:

[0062] NaHCOO+KOH→KHCOO+NaOH

[0063] 2KHCOO+2NaOH+CaSO 4 →Ca(HCOO) 2 +2NaOH+K 2 SO 4

[0064] combine the two

[0065] 2NaHCOO+2KOH+CaSO 4 →Ca(HCOO) 2 +2NaOH+K 2 SO 4

[0066] According to the above reaction formula, 2 mol of sodium acetate and 2 mol of potassium hydroxide theoretically react with 1 mol of calcium sulfate, and the actual amount of calcium sulfate added is 122 to 163 g (0.9 to 1.2 mol), preferably 130 to 137 g (0.95 ~1.1mol).

[0067] Afterwards, it is filtered, dried and pulverized to obtain snowmelting and anti-slip agent mixed powder...

Embodiment 2

[0070] 184.3g of calcium magnesium carbonate (MgCa(CO 3 ) 2 ) was added into the 820ml aqueous solution in which 224.4g of potassium hydroxide (KOH) had been dissolved, and stirred at room temperature to make it react. After that, add 74g of calcium hydroxide (Ca(OH) 2 ) Stirring reaction, mixing, and then filtering, drying, pulverizing to make magnesium hydroxide calcium (MgCa(OH) 4 ) 132g, calcium carbonate (CaCO 3 ) 100g, potassium hydroxide (KOH) 3g, snow melting anti-slip agent with an average particle size of 1-3mm. Under the condition that the average temperature is -4°C and the snowfall is 3cm, the prepared snow-melting anti-skid agent is prepared at a rate of 50g / m 2 Sprinkle around the amount on the road. After 30 minutes the snow started to melt and after 3 hours the snow basically melted. Even though snowfall continued during this period, there was no snow accumulation after 5 hours. After 30 minutes, the vehicle braking test was carried out when the snow be...

Embodiment 3

[0075] 300.3g magnesium calcium acetate MgCa (CH 3 COO) 4 Add it to the 500ml aqueous solution in which 224.4g of potassium hydroxide was dissolved, stir and react at room temperature, and then add 220g of calcium silicate and stir, react and mix. Afterwards, it is filtered, dried and pulverized to obtain a snow-melting anti-slip agent with a particle diameter of 1-3 mm containing reaction products calcium acetate, calcium magnesium oxide and potassium silicate. Under the condition of snowfall of 4cm at an average temperature of -7°C, the obtained snow-melting anti-skid agent was prepared at a rate of 30g / m 2About the amount sprinkled on the road surface, the snow will start to melt after 30 minutes, and the snow will basically melt after 4 hours. Snow continued to fall during this period, and there was no snow after 6.5 hours. After 30 minutes, the vehicle braking test was carried out when the snow began to melt, and the brake was stepped on at a speed of 5km per hour and ...

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Abstract

The invention provides a snow melting slip proofing agent and a preparing method thereof. The snow melting slop proofing agent is prepared from a reactant A which is one of alkali metal fatty acid salt, alkaline-earth metal fatty acid salt, alkali carbonate or alkaline-earth metal carbonate, a reactant B alkali metal hydroxide and a reactant C which is one of alkaline-earth metal hydroxide, alkali metal sulfate, alkaline-earth metal sulfate, alkali metal silicate or alkaline-earth metals silicate. The snow melting slip proofing agent can promote the snow melting effect; due to the fact that the snow melting slip proofing agent can be dissolved in water, continuity of the snow melting effect is improved when the snow melting slip proofing agent is dissolved in water slowly, no harmful influence is caused on the human body, plants and animals near roads and the environment, icy pavement can be prevented, and metal corrosion of automobiles, road markings and the like can be prevented.

Description

technical field [0001] The invention relates to the technical field of road snow melting, in particular to a snow melting anti-skid agent and a preparation method thereof. Background technique [0002] Urbanization and highwayization are important symbols of social progress and development. Some technologically advanced countries have developed urban and highway transportation rapidly, and automobiles have become the main means of transportation. Therefore, urban traffic and highway traffic occupy a special and important position in the development of the national economy. [0003] Traffic difficulties caused by winter snow, especially endangering personal safety, improper or untimely handling, can affect the economic development of cities, regions and even countries, and at the same time affect the normal life of the people, and even cause partial "paralysis" and large-scale "accidents" happened. Therefore, in order to ensure a safe, fast, comfortable, and smooth driving ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18
CPCC09K3/185
Inventor 盖波
Owner 北京环卫集团环卫服务有限公司
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