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Isopropanol compound antifreezing agent preparation method

A preparation method, the technology of isopropanol, which is applied in the chemical industry, can solve the problems of accelerated condensation and hardening, and the unsatisfactory effect of antifreeze, and achieve the effects of low production cost, good product quality and mild reaction conditions

Inactive Publication Date: 2014-01-29
XINYI HANLING BIO ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Antifreeze is designed and developed for winter building concrete construction. It can accelerate the condensation and hardening of concrete under negative temperature conditions. The strength increases significantly and does not affect the development of later strength. A single antifreeze is often not effective, and composite products are generally used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Send isopropanol accounting for 76% of the total amount into the chemical reaction kettle, raise the temperature to between 30°C and 32°C, stir, and respectively add 12% of the total amount of urea, 3% of the total amount of Add sodium nitrite to the reaction kettle, stir and react for 30 minutes; cool down to normal temperature, continue stirring, respectively add fatty alcohol sodium sulfate air-entraining agent accounting for 4% of the total amount and xylitol water reducer accounting for 5% of the total amount Reactor, stirring and reacting for 10 minutes, stop stirring to get the finished product; when in use, the isopropanol composite antifreeze agent can be mixed into the concrete in an amount of 3%-5%.

Embodiment 2

[0015] Send isopropanol accounting for 77% of the total amount into the chemical reaction kettle, raise the temperature to 30°C-32°C, stir, respectively add 11% of the total amount of urea, 3% of the total amount of Add sodium nitrite to the reaction kettle, stir and react for 30 minutes; cool down to normal temperature, continue stirring, respectively add fatty alcohol sodium sulfate air-entraining agent accounting for 4% of the total amount and xylitol water reducer accounting for 5% of the total amount Reactor, stirring and reacting for 10 minutes, stop stirring to get the finished product; when in use, the isopropanol composite antifreeze agent can be mixed into the concrete in an amount of 3%-5%.

Embodiment 3

[0017] Send isopropanol accounting for 78% of the total amount into the chemical reaction kettle, raise the temperature to between 30°C and 32°C, stir, and respectively add 10% of the total amount of urea, 3% of the total amount of Add sodium nitrite to the reaction kettle, stir and react for 30 minutes; cool down to normal temperature, continue stirring, respectively add fatty alcohol sodium sulfate air-entraining agent accounting for 4% of the total amount and xylitol water reducer accounting for 5% of the total amount Reactor, stirring and reacting for 10 minutes, stop stirring to get the finished product; when in use, the isopropanol composite antifreeze agent can be mixed into the concrete in an amount of 3%-5%.

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Abstract

The invention discloses an isopropanol compound antifreezing agent preparation method, and belongs to the field of chemical engineering. The isopropanol compound antifreezing agent preparation method is characterized in that an isopropanol compound antifreezing agent is produced by using isopropanol, urea, sodium nitrite, a sodium alkyl sulfate air entraining agent and a xylitol water reducing agent as auxiliary materials and a chemical reaction kettle as a container under the conditions of special temperature and reaction time, wherein the sodium alkyl sulfate air entraining agent and the xylitol water reducing agent are respectively a high-grade air entraining agent and a high-grade water reducing agent and are compounded with the isopropanol, so that the antifreezing property of the isopropanol compound antifreezing agent can be improved, and the air entraining effect and the water reduction effect of the isopropanol compound antifreezing agent can aslo be improved. The isopropanol compound antifreezing agent preparation method has the advantages of simple production process, mild reaction conditions, good product quality and the like. The isopropanol compound antifreezing agent has excellent anti-freezing ability, good air entraining and water reduction functions and good low-alkaline and plastic retaining properties.

Description

technical field [0001] The product of the invention belongs to the field of chemical industry, and in particular relates to a preparation method of an isopropanol composite antifreeze. Background technique [0002] Antifreeze is designed and developed for winter building concrete construction. It can accelerate the condensation and hardening of concrete under negative temperature conditions. The strength increases significantly and does not affect the development of later strength. A single antifreeze is often not effective, and composite products are generally used. . Antifreeze is generally composed of main materials and auxiliary materials. Isopropanol is a good antifreeze main material. Isopropanol is an organic compound, also known as dimethyl methanol and 2-propanol. Its molecular formula is C3H8O, and its appearance is colorless and transparent. Flammable liquid with ethanol smell, miscible with alcohol, ether, chloroform and water, can melt alkaloids, rubber and oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12
Inventor 不公告发明人
Owner XINYI HANLING BIO ENG
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