Low-chloride snow-melting agent and preparation method and application thereof

A snow-melting agent and calcium chloride technology, applied in chemical instruments and methods, and other chemical processes, can solve problems such as road surface, metal material corrosion, groundwater pollution, and cannot be called an environmentally friendly snow-melting agent. Low temperature, strong ability to melt snow and ice, and the effect of vegetation and road safety

Inactive Publication Date: 2016-07-13
黄山九星环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, corrosion inhibitors, rust inhibitors or preservatives are added to snow-melting salt, but most of the protective agents added are salts such as nitrite and acetate, so this type of environmentally friendly snow-melting agent can only be used for Reinforced concrete bridges cannot be used on non-bridge roads, and once the deicing agent seeps into the soil with water, it will still seriously pollute the groundwater, so strictly speaking, it cannot be called an environmentally friendly deicing agent
For example, Chinese patent CN104293298A discloses a l

Method used

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  • Low-chloride snow-melting agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1

[0017] A low-chlorine snow melting agent, which is composed of the following raw materials: sodium borate 10Kg, sodium formate 3Kg, calcium chloride 10Kg, amine acetate 5Kg, sodium ethylenediaminetetraacetate 5Kg, urea 5Kg, potassium citrate 15Kg, sodium gluconate 5Kg, Sodium bentonite 3Kg.

[0018] The method of the aforementioned low-chlorine snow melting agent includes the following steps:

[0019] Sequentially add sodium borate, sodium formate, calcium chloride, amine acetate, sodium edetate, urea, potassium citrate, sodium gluconate, sodium bentonite into the solid mixer according to the proportions, and mix at high speed until it is evenly mixed. After that, the temperature can be lowered and the material can be discharged.

Example Embodiment

[0020] Example 2

[0021] A low-chlorine snow melting agent, which is composed of the following raw materials: sodium borate 15Kg, sodium formate 5Kg, calcium chloride 15Kg, amine acetate 10Kg, sodium ethylenediaminetetraacetate 8Kg, urea 10Kg, potassium citrate 25Kg, sodium gluconate 10Kg, Sodium bentonite 42Kg.

[0022] The method of the aforementioned low-chlorine snow melting agent includes the following steps:

[0023] Sequentially add sodium borate, sodium formate, calcium chloride, amine acetate, sodium edetate, urea, potassium citrate, sodium gluconate, sodium bentonite into the solid mixer according to the proportions, and mix at high speed until it is evenly mixed. After that, the temperature can be lowered and the material can be discharged.

Example Embodiment

[0024] Example 3

[0025] A low-chlorine snow melting agent, which is composed of the following raw materials: sodium borate 11Kg, sodium formate 4Kg, calcium chloride 11Kg, amine acetate 7Kg, ethylenediaminetetraacetate 6Kg, urea 7Kg, potassium citrate 17Kg, sodium gluconate 7Kg, 35Kg of sodium bentonite.

[0026] The method of the aforementioned low-chlorine snow melting agent includes the following steps:

[0027] Sequentially add sodium borate, sodium formate, calcium chloride, amine acetate, sodium edetate, urea, potassium citrate, sodium gluconate, sodium bentonite into the solid mixer according to the proportions, and mix at high speed until it is evenly mixed. After that, the temperature can be lowered and the material can be discharged.

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Abstract

The invention belongs to the technical field of environmentally friendly chemicals, particularly relates to a low-chloride snow-melting agent and further discloses a preparation method of the low-chloride snow-melting agent.According to the low-chloride snow-melting agent, sodium borate, sodium formate, calcium chloride, ammoniom acetate, ethylenediamine tetraacetic acid disodium, urea, potassium citrate, sodium gluconate and sodium bentonite serve as preparation raw materials, the content of chlorine salt is low, adopted raw materials are all ingredients which are safe, free of toxin and environmentally friendly and completely meet the requirement for environmentally friendliness.The prepared low-chloride snow-melting agent has the advantages of being low in freezing point (the freezing point of 200 g/L is lower than minus 11 DEG C), high in dissolution velocity (the speed is higher than 10 g/min), high in ice melting capacity (90% higher than snow melting capacity of sodium chloride) and small in corrosion of carbon steel materials (corrosion is smaller than 0.03 mm/a), can be widely applied to snow melting and freezing prevention of various roads, is low in chlorine ion content of a product and is consistent with the current development requirement of environmental protection.

Description

technical field [0001] The invention belongs to the technical field of environmental protection chemicals, and in particular relates to a low-chlorine deicing agent and a preparation method thereof. Background technique [0002] Snow melting agent, also known as deicing salt and road antifreeze, is mainly used in winter airports, highways, squares, parking lots, railways, urban streets, etc. to melt ice and snow and prevent freezing. Its ingredients are sodium chloride, calcium chloride , magnesium chloride and other salts. [0003] At present, there are many types of deicing agents developed in my country, which are divided into solid preparations and liquid preparations according to the state of matter; according to the composition, they are divided into inorganic preparations and mixed preparations containing both inorganic and organic substances; they can also be divided into urban preparations according to different uses. Road deicing agent and deicing agent used in bri...

Claims

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Application Information

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IPC IPC(8): C09K3/18
CPCC09K3/185
Inventor 王永垒熊亮胡辉
Owner 黄山九星环保科技股份有限公司
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