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Production process of triallyl cyanurate

A technology of triallyl ester and cyanuric acid, which is applied in the direction of organic chemistry, can solve the problems of complex production process, large environmental pollution, high product cost, etc., and achieve the goal of reducing three wastes discharge, increasing product yield and reducing production steps Effect

Active Publication Date: 2014-04-09
自贡天龙化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims at solving the shortcomings of the current triallyl cyanurate production process, such as complex production process, high energy consumption, cross-linking and returning to the original phenomenon during product use, high product cost, and large environmental pollution in the production process, and provides a Triallyl cyanurate production process that is easy to implement, requires a low technical level, and has no phase separation problems and water washing steps

Method used

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  • Production process of triallyl cyanurate

Examples

Experimental program
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Effect test

Embodiment 1

[0037] In a 1000L enamel reaction kettle with an external heat exchange circuit composed of a cooler and a circulation pump, initially charge 596.0kg (7800mol) of chloropropene with an excess of 30%; start the stirring, start the cooling circuit with brine, and put Allyl chloride was cooled to 0°C. Then start to add a total of 396.0 kg (2000mol) of trisodium cyanurate, add slowly through a vibrating feeder, rapidly dissolve and react to release heat, control the temperature at 5-10°C, and generate triallyl cyanurate and sodium chloride. The time is about 60 minutes. For complete conversion, the cooling circuit equipped with brine was closed, and hot water at 40° C. was introduced into the reactor jacket to raise the temperature of the reaction liquid to 40° C., and the stirring was continued for 20 minutes. After stabilizing the triallyl cyanurate with 100ppm of hydroquinone monomethyl ether, turn on the water jet vacuum, and at a temperature of 35°C, distill and recover the ...

Embodiment 2

[0039] In a 1000L enamel reaction kettle with an external heat exchange circuit composed of a cooler and a circulating pump, initially charge 550.0kg (7200mol) of chloropropene with an excess of 20%; start the stirring, start the cooling circuit with brine, and put Allyl chloride was cooled to 0°C. Then start to add a total of 396.0 kg (2000mol) of trisodium cyanurate, add slowly through a vibrating feeder, rapidly dissolve and react to release heat, control the temperature at 5-10°C, and generate triallyl cyanurate and sodium chloride. The time is about 60 minutes. For complete conversion, the cooling circuit equipped with brine was closed, and 42°C hot water was introduced into the reactor jacket to raise the temperature of the reaction liquid to 38°C, and the stirring was continued for 20 minutes. After stabilizing the triallyl cyanurate with 100ppm of hydroquinone monomethyl ether, turn on the water jet vacuum, and at a temperature of 39°C, distill and recover the unreact...

Embodiment 3

[0041] In a 1000L enamel reaction kettle with an external heat exchange circuit composed of a cooler and a circulating pump, initially charge 643.0kg (8400mol) of chloropropene with an excess of 40%; start stirring, start the cooling circuit with brine, and put Allyl chloride was cooled to 0°C. Then start to add a total of 396.0 kg (2000mol) of trisodium cyanurate, add slowly through a vibrating feeder, rapidly dissolve and react to release heat, control the temperature at 5-10°C, and generate triallyl cyanurate and sodium chloride. The time is about 60 minutes. For complete conversion, the cooling circuit equipped with brine was closed, and 45°C hot water was introduced into the jacket of the reaction kettle to raise the temperature of the reaction liquid to 40°C, and the stirring was continued for 20 minutes. After stabilizing the triallyl cyanurate with 100 ppm of hydroquinone monomethyl ether, turn on the water jet vacuum, and at a temperature of 40° C., distill and recov...

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Abstract

The invention relates to a method for preparing cross-linking agent triallyl cyanurate (TAC), which belongs to the technical field of material chemical industry and mainly comprises the following steps: (1) performing solvent-free low-temperature salifying process, (2) producing TAC and sodium chloride, (3) performing low-temperature vacuum distillation, and (4) performing centrifugal separation to produce TAC. The production process of the TAC is mainly characterized in that the reaction is performed through cyanuric acid trisodium and chloropropene in the absence of other organic solvents except the chloropropene and then the low-temperature vacuum distillation and continuous membrane filtration and purification are performed to produce high TAC content, the purity exceeds 99%, the APHA value is lower than 10, and the yield exceeds 95%. The production process of the TAC has the advantages of being low in production cost, low in environmental pollution, good in product quality, high in yield, strong in market competitiveness and easy to popularize and apply industrially.

Description

technical field [0001] The invention relates to a preparation method of a special rubber crosslinking agent, which belongs to a preparation method of chemical products, in particular to a production process of triallyl cyanurate. Background technique [0002] Triallyl cyanurate (TAC) is a colorless transparent liquid or white crystal. It is a trifunctional reaction crosslinking agent, which can significantly improve the strength, rigidity and heat resistance of plastic products. It can make the products work at 250 ℃ for long-term use. Therefore, it is a new type of crosslinking agent for preparing high-performance unsaturated polyester and acrylic series resin products. It is especially suitable for the preparation of high-temperature-resistant and high-strength FRP products; it can also be used in the rubber and cable industries as a vulcanization accelerator for highly saturated rubber to improve the vulcanization effect; it can also be used as a photosensitizer for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/34
Inventor 黄勇
Owner 自贡天龙化工有限公司
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