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Non-chlorine snow melting agent and preparation method thereof

A snow-melting agent, non-chlorine technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of shortened service life of buildings, difficulty in large-scale storage, poor snow-melting ability, etc., achieve small friction attenuation coefficient and reasonable processing cost , The effect of strong snow melting ability

Active Publication Date: 2021-04-02
辽宁大成环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first and third types are severely corrosive and poisonous to concrete bridges, roads, and surrounding green plants due to the presence of chloride ions, which seriously shortens the service life of buildings and leads to high maintenance costs.
The second type of non-chlorine organic salts is less corrosive than chlorine-containing deicing agents, but its price is about 10 times that of general chlorine-containing deicing agents, and its snow-melting ability is not as good as that of chlorine-containing deicing agents
The fourth type, although the polyol deicing agent solves the problem of environmental protection, it is a liquid and has high requirements for on-site use. It must be matched with storage tanks and spraying vehicles. High, resulting in high cost of use

Method used

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  • Non-chlorine snow melting agent and preparation method thereof
  • Non-chlorine snow melting agent and preparation method thereof
  • Non-chlorine snow melting agent and preparation method thereof

Examples

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preparation example Construction

[0026] The present invention also provides a preparation method of a deicing agent composition, which comprises sugar and C selected from one or both of sucrose and reducing sugar 1 -C 8 The salts of organic acids are mixed and spray-dried to obtain a granular product.

[0027] In the present invention, "granular product" has no special requirements on the diameter of the particles, as long as the product is granular, it belongs to the scope of "granular".

[0028] When molasses is used instead of sucrose and / or reducing sugar, its preparation method includes: heating molasses at 35-60°C, stirring to make the ingredients fully mixed; then adding 0.8%-1.5% of liquid alkali (based on the weight of molasses, where The concentration of medium alkali is 35%-40%), mix evenly, enter the reaction kettle for hydrolysis reaction; then add acid to the reacted reaction solution to adjust the pH of the reaction solution to 8.0-8.5; cool down, add 1%-4% hydrogen peroxide (based on the wei...

Embodiment 1

[0041] Embodiment 1: Contrast of application amount of deicing agent of the present invention and commercially available deicing agent in snow melting test on snowy road surface

[0042] The detection method of the snow melting ability of the snow melting agent in the present invention follows the national standard GB / T23851-2009, and the method is as follows: take two 150ml porcelain crucibles with the same diameter and height, add 100ml of water, and place them in a low-temperature constant temperature box at -10°C ± 1°C until freezing. Pipette 20% deicing agent solution of the present invention and 20% sodium chloride solution of 25ml, move respectively in the 50ml beaker, be placed in the low temperature thermostat of-10 ℃ ± 1 ℃, standby after 12 hours. Take out the porcelain crucible with ice cubes from the low-temperature constant temperature box, wipe off the water and ice on the outer wall, and weigh it quickly, accurate to 0.1g. Quickly pour the deicing agent solutio...

Embodiment 2

[0059] Example 2: Snow-melting and ice-melting ability experiment of a single component

[0060] The snow melting effect test was carried out according to the national standard GB / T23851-2009, and the test method was the same as in Example 1. The test results are listed in Table 2 below, wherein the amount of the active ingredient is expressed as a percentage concentration in the aqueous solution:

[0061] Table 2 Snow-melting effect of single-component snow-melting agent

[0062]

[0063]

[0064]

[0065]

[0066]

[0067] It can be seen from the above table that under the condition of -10°C required by the national standard, sucrose and glucose alone do not have snow-melting ability when the content is less than 10%, and sodium acetate alone does not have snow-melting ability when the content is less than 10%. Snow-melting ability, while the ice-melting ability of potassium formate is relatively prominent when the content is less than 10%. In addition, unde...

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Abstract

The invention relates to a non-chlorine snow melting agent composition. 100% of the non-chlorine snow melting agent composition comprises following effective components: A, 12.5 to 67% of sugar, B, 33to 87.5% of C1-C8 organic acid salts; the sugar contains one or two ingredients selected from saccharose and a reducing sugar; the non-chlorine snow melting agent composition contains no chlorine. According to a preparation method, no chlorine-containing raw material is adopted, the corrosion rate on concrete and carbon steel is extremely low, and no toxicity on green plants is caused. The non-chlorine snow melting agent composition is capable of realizing snow melting with high efficiency; the processing cost is low; the friction attenuation coefficient is low; and the application prospect is promising.

Description

technical field [0001] The invention relates to a deicing agent and a preparation method thereof, in particular to a non-chlorine deicing agent composition and a preparation method thereof. Background technique [0002] There are mainly four kinds of existing deicing agents. The first one is based on sodium chloride and calcium chloride, and is a chlorine-containing deicing agent added with additives such as anti-corrosion or anti-corrosion. The second is a non-chlorine deicing agent based on organic salts such as acetate. The third type is a mixed deicing agent that is a mixture of chlorine-containing substances and non-chlorine substances in a certain proportion. The fourth is a non-chlorine liquid deicing agent based on polyols and organic acid salts. [0003] Due to the presence of chloride ions, the first and third types are highly corrosive and poisonous to concrete bridges, roads, and surrounding green plants, severely shortening the service life of buildings and re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18
CPCC09K3/185
Inventor 孙晓娇
Owner 辽宁大成环保科技有限公司
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