Preparation method of snow-melting agent and prepared snow-melting agent

A snow-melting agent and mixture technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of chlorine salt-based snow-melting agents that are not environmentally friendly, high in cost, and complicated in the preparation method of snow-melting agents, and achieve good protection and fertilization. The effect of high stability, low freezing point and simple preparation method

Pending Publication Date: 2021-07-09
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the chloride-salt deicing agents in the prior art are not environmentally friendly, and the preparation methods of the deicing agents in the prior art are complicated and costly

Method used

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  • Preparation method of snow-melting agent and prepared snow-melting agent

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The present embodiment provides a kind of preparation method of deicing agent, specifically implement according to the following steps:

[0044] Step 1, synthesis of acrylic acid and sodium propylene sulfonate copolymer: According to the mass ratio of 2:2:1, first add 8g of water, 8g of acrylic acid, and 4g of sodium propylene sulfonate, stir to dissolve, heat to 70°C, and dissolve 0.6g of The aqueous solution of potassium sulfate initiator was added dropwise into the bottle, and reacted at constant temperature for 4 hours to obtain a colorless or light yellow transparent viscous liquid;

[0045] Step 2, adding the following mass percentage raw materials into the mixer for mixing and stirring: 30% sodium formate, 20% potassium acetate, 9% potassium phosphate, 9% calcium oxide, 12% propylene glycol and 10% water to obtain the primary mixture;

[0046] Step 3, continue to add 10% by mass of acrylic acid and sodium propylene sulfonate copolymer to the primary mixture, and ...

Embodiment 2

[0049] The present embodiment provides a kind of preparation method of deicing agent, specifically implement according to the following steps:

[0050] Step 1, synthesis of acrylic acid and sodium propylene sulfonate copolymer: According to the mass ratio of 2:2:1, first add 8g of water, 8g of acrylic acid, and 4g of sodium propylene sulfonate, stir to dissolve, heat to 70°C, and dissolve 0.6g of The aqueous solution of potassium sulfate initiator was added dropwise into the bottle, and reacted at constant temperature for 4 hours to obtain a colorless or light yellow transparent viscous liquid;

[0051] Step 2, adding the following mass percentage raw materials into the mixer for mixing and stirring: 35% sodium formate, 15% potassium acetate, 10% potassium phosphate, 8% calcium oxide, 13% propylene glycol and 8% water to obtain the primary mixture;

[0052] Step 3, continue to add 10% by mass of acrylic acid and sodium propylene sulfonate copolymer to the primary mixture, and ...

Embodiment 3

[0055] The present embodiment provides a kind of preparation method of deicing agent, specifically implement according to the following steps:

[0056] Step 1, synthesis of acrylic acid and sodium propylene sulfonate copolymer: According to the mass ratio of 2:2:1, first add 8g of water, 8g of acrylic acid, and 4g of sodium propylene sulfonate, stir to dissolve, heat to 70°C, and dissolve 0.6g of The aqueous solution of potassium sulfate initiator was added dropwise into the bottle, and reacted at constant temperature for 4 hours to obtain a colorless or light yellow transparent viscous liquid;

[0057] Step 2, adding the following mass percentage raw materials into the mixer for mixing and stirring: 40% sodium formate, 10% potassium acetate, 8% potassium phosphate, 10% calcium oxide, 13% propylene glycol and 9% water to obtain the primary mixture;

[0058] Step 3, continue to add 10% by mass of acrylic acid and sodium propylene sulfonate copolymer to the primary mixture, and ...

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Abstract

The invention discloses a preparation method of a snow-melting agent, and relates to the technical field of snow-melting agents, and the preparation method comprises the following steps: (1) preparing an acrylic acid and sodium allylsulfonate copolymer: mixing water, acrylic acid and sodium allylsulfonate in proportion, stirring and dissolving, heating to 70 DEG C, adding an initiator, and reacting at constant temperature for 4 hours to obtain colorless or light yellow transparent viscous liquid; (2) mixing and stirring sodium formate, potassium acetate, potassium phosphate, calcium oxide, propylene glycol and water to obtain a primary mixture; (3) adding the acrylic acid and sodium allylsulfonate copolymer in the step (1) into the primary mixture, and stirring; and (4) performing granulation molding on the mixture in the step (3) to obtain the snow-melting agent. The preparation method has the beneficial effects that the preparation method is simple, the operability is strong, the snow-melting agent can be prepared by stirring and mixing the components, regulating the viscosity and then curing and molding by a granulator, and the snow-melting agent does not contain chlorine elements and is green and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of snow-melting agents, in particular to a preparation method of the snow-melting agent and the prepared snow-melting agent. Background technique [0002] The winter in northern my country is deeply poisoned by snow accumulation. The current snow removal methods are: one is mechanical snow removal, and the other is snow removal through deicing agents. The deicing agent is divided into three categories: chlorine salt type, non-chlorine salt type deicing agent and environmental protection composite deicing agent. In the early days, chlorine-salt deicing agents were commonly used for snow removal, with low cost, good effect and fast speed. For example, the patent application whose publication number is CN109321205A discloses an environment-friendly snow-melting agent and a preparation method thereof, which is a chloride-salt composite snow-melting agent, mainly based on chloride salts. Aiming at prolonging th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18C08F220/06C08F228/02
CPCC09K3/185C08F220/06C08F228/02
Inventor 李有桂夏卫领吴杰付延明吴祥朱成峰
Owner HEFEI UNIV OF TECH
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