Antifreezing snow melting agent and preparation method thereof

A technology of deicing agent and retarding agent, which is applied in the composition field of antifreeze deicing agent, can solve the problems of high price and achieve the effects of small environmental impact, prolonging the deicing time, and de-alkalizing the soil

Inactive Publication Date: 2013-10-23
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Looking at home and abroad, the current existing deicing agents can be divided into chlorine salt type, non-chlorine salt type (mainly refers to acetate, alcohol, amine, etc.) and mixed type (mainly refers to the addition of rust inhibitors and preservatives etc.), either the price is expensive, or the chlorine salt content is as high as 80% to 90%, and there is no environmentally friendly deicing agent suitable for road use

Method used

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  • Antifreezing snow melting agent and preparation method thereof
  • Antifreezing snow melting agent and preparation method thereof
  • Antifreezing snow melting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Preparation of antifreeze type deicing agent

[0034] 1. Preparation of organic water-absorbing agent: under the condition of 20° C., prepare 10 g of mass concentration of 1% chitosan hydrochloride solution, pH value is 5.7, and the mass concentration of 10 g is 1% of chitosan hydrochloride solution Mix with 50g of soluble starch, and stir evenly to obtain 60g of organic water-absorbing agent.

[0035] 2. Preparation of freezing point depressant: Mix 80 g of ethanol with 70 g of glycerin and 30 g of ethylene glycol and stir evenly to obtain 180 g of freezing point depressant.

[0036] 3. Preparation of freezing retarder: crush 20 g of diammonium phosphate, 20 g of urea, 10 g of ammonium sulfate, 10 g of ammonium nitrate, 3 g of sodium acetate, 1 g of zinc acetate, and 1 g of ferric nitrate, add 44 g of water and stir evenly to obtain 109 g of freezing retarder.

[0037] 4. After mixing 25g of the above-mentioned organic water-absorbing agent, 150g of freezing point...

Embodiment 2

[0075] (1) Preparation of antifreeze type deicing agent

[0076] 1. Preparation of organic water-absorbing agent: under the condition of 20° C., prepare 10 g of mass concentration of 1% chitosan hydrochloride solution, the pH value is 5.5, and the mass concentration of 10 g is 1% of chitosan hydrochloride solution Mix with 20g of soluble starch, and stir evenly to obtain 30g of organic water-absorbing agent.

[0077] 2. Preparation of freezing point depressant: Mix 20 g of ethanol with 40 g of glycerin and 15 g of ethylene glycol and stir evenly to obtain 75 g of freezing point depressant.

[0078] 3. Preparation of freezing retarder: crush 40 g of diammonium phosphate, 40 g of urea, 10 g of ammonium sulfate, 10 g of ammonium nitrate, 2 g of sodium acetate, 0.8 g of zinc acetate, and 1 g of ferric nitrate, add 64 g of water and stir evenly to obtain 167.8 g of freezing retarder.

[0079] 4. After mixing 10g of the above-mentioned organic water-absorbing agent, 75g of freezing...

Embodiment 3

[0109] (1) Preparation of antifreeze type deicing agent

[0110] 1. Preparation of organic water-absorbing agent: under the condition of 20° C., prepare 30 g mass concentration of 1% chitosan hydrochloride solution, pH value is 5.6, and 20 g mass concentration of 1% chitosan hydrochloride solution Mix with 30g of soluble starch, and stir evenly to obtain 50g of organic water-absorbing agent.

[0111] 2. Preparation of freezing point depressant: Mix 30 g of ethanol with 50 g of glycerin and 20 g of ethylene glycol and stir evenly to obtain 100 g of freezing point depressant.

[0112] 3. Preparation of freezing retarder: crush 20 g of diammonium phosphate, 20 g of urea, 5 g of ammonium sulfate, 5 g of ammonium nitrate, 2 g of sodium acetate, 2 g of zinc acetate, and 1 g of ferric nitrate, add 55 g of water and stir evenly to obtain 110 g of freezing retarder.

[0113] 4. After mixing 15g of the above-mentioned organic water-absorbing agent, 100g of freezing point depressant, an...

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Abstract

The invention discloses an antifreezing snow melting agent which is obtained by combining an organic water-absorbing agent formed by chitosan hydrochloride and soluble starch with a freezing point reducing agent formed by three alcohols or polyols and then adding a freezing delaying agent formed by soluble amine or amine salt, soluble acetate and an additive. The preparation method comprises the following steps: (1) adding chitosan hydrochloride in the soluble starch and evenly mixing to prepare the organic water-absorbing agent; (2) preparing the freezing point reducing agent from ethanol, glycerol and glycol in a proportion; (3) preparing the freezing delaying agent from the soluble amine salt, soluble acetate and the additive in a proportion; and (4) adding water and mixing the three parts of substances in a proportion and then filtering so as to prepare the antifreezing snow melting agent. The antifreezing snow melting agent disclosed by the invention has obvious effects in the aspects of freezing time delay, use convenience, environment friendliness, comprehensive efficacy and the like.

Description

technical field [0001] The invention relates to the field of snow-melting agents, in particular to the composition of an antifreeze-type snow-melting agent. Background technique [0002] Looking at home and abroad, the current existing deicing agents can be divided into chlorine salt type, non-chlorine salt type (mainly refers to acetate, alcohol, amine, etc.) and mixed type (mainly refers to the addition of rust inhibitors and preservatives etc.), either the price is expensive, or the chlorinated salt content is as high as 80% to 90%, and there is no environmentally friendly deicing agent suitable for road use. [0003] Environmentally friendly snow melting agent means that the product does not contain sodium chloride and is specially added with special protective agent and other ingredients to reduce the impact and damage on roads and the environment. Or the deicing products are green and environmentally friendly, basically harmless to road surfaces, green plants and publ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18
Inventor 黄德智黄德惠张勇段卫红魏志苹夏秀美樊桂芳姜东
Owner DALIAN POLYTECHNIC UNIVERSITY
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