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A salt-free, dust-free, low-chlorine, environmentally friendly deicing agent and preparation method thereof

A snow-melting agent and environmental protection technology, applied in the field of snow-melting agent preparation, can solve the problems of easy formation of salt dust, secondary pollution of the environment, and high corrosion and destructiveness of snow-melting agent, and achieve the suppression of salt dust formation, low production cost, and ice-melting effect Good results

Active Publication Date: 2021-04-06
金宝特兴(北京)科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a salt-dust-free, low-chlorine, environmentally friendly deicing agent and its preparation method to solve the technical problems in the prior art that the deicing agent is highly destructive in corrosion, easily forms salt dust, and causes secondary pollution to the environment.

Method used

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  • A salt-free, dust-free, low-chlorine, environmentally friendly deicing agent and preparation method thereof
  • A salt-free, dust-free, low-chlorine, environmentally friendly deicing agent and preparation method thereof
  • A salt-free, dust-free, low-chlorine, environmentally friendly deicing agent and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0026] The technological process of preparation method of the present invention is as figure 1 As shown, specifically, the preparation method includes the following steps: 1). Preparation of anticoagulant: Take 1.56 grams of glycerol and 3 grams of boric acid, mix and heat to 160° C., maintain 160° C. for 1 hour, and keep stirring during the period. The stirring speed is 20 rpm. Take out the reactant, add 1.98 g of phosphoglyceride, 2 g of potassium formate, and 4 g of sodium acetate, mix and heat to 120° C., and keep it for 2 hours; keep stirring during the period, and the stirring speed is 25 rpm;

[0027] 2). Step 1) After the reaction is over, add 85 grams of sodium chloride, 0.5 grams of sodium hexametaphosphate as a slow-release antiscalant, stir evenly, extrude and granulate, and the extrusion pressure is 10 kg, and the finished product is produced. It is yellow-brown granular with a particle size of 0.3-0.6 cm.

Embodiment 2

[0029] This example is carried out on the basis of Example 1, the difference is that the amount of each reagent used is different, see Table 1 for the specific amount.

Embodiment 3

[0031] This example is carried out on the basis of Example 1, the difference is that the amount of each reagent used is different, see Table 1 for the specific amount.

[0032] Table 1. Amounts of reagents used in each example

[0033]

[0034]

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Abstract

The invention discloses a salt-dust-free, low-chlorine, environment-friendly deicing agent and a preparation method thereof. The deicing agent prepared by the present invention is yellowish-brown granular, and its particle size is 0.3-0.6 cm. The chlorine content is more than 15% lower than that of common deicing agents, and its harm to the environment is also reduced by 30%-40%. It contains a low amount of chlorine. Chemicals, the damage and pollution to soil, plants, and groundwater resources are far lower than ordinary deicing agents, and there is no white salt stain on the surface after snow removal operations, effectively inhibiting the formation of salt dust and preventing secondary pollution.

Description

technical field [0001] The invention belongs to the technical field of snow-melting agent preparation, and in particular relates to a salt-dust-free, low-chlorine, environment-friendly snow-melting agent and a preparation method thereof. Background technique [0002] Snowfall and icing in winter often bring inconvenience to cities and transportation, and easily cause traffic accidents, especially on expressways, which are likely to be forced to close due to snow or icing, resulting in huge economic loss. At present, snow removal methods are mainly divided into mechanical snow removal and chemical snow removal. Among them, mechanical snow removal is flexible, fast, and has a wide range of applications, but there are deficiencies such as poor removal rate and easy damage to the road surface; the snow removal method of chemical deicing agent can make up for the shortage of mechanical snow removal, and is an effective means of melting snow and ice. Its use is irreplaceable. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18
CPCC09K3/18
Inventor 李玉强魏大勇崔鹏
Owner 金宝特兴(北京)科技开发有限公司
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