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A kind of method adopting normal pressure method to synthesize zinc cyanurate

A technology of zinc cyanurate and cyanuric acid, which is applied in the direction of organic chemistry, can solve the problems of complicated operation and high cost, and achieve the effect of low reaction temperature, easy control and easy operation

Active Publication Date: 2015-08-12
HANGZHOU HI TECH FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has changed the traditional process to a certain extent, but the reaction needs to be pressurized, so the reactor must have a pressurization device
Compared with normal pressure reaction, the process operation is more complicated and the cost is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] First, weigh 100kg of cyanuric acid and add it to the reaction kettle, add 100kg of water, turn on the stirring paddle for stirring, set the temperature to 80°C, after the temperature reaches the set temperature, add 94kg of zinc oxide, continue to stir for 1 hour, then open the outlet valve, continue Stir until the mass is dry. Open the discharge port, release the material, put the material into the mechanical pulverizer and jet pulverizer for pulverization and classification.

Embodiment 2

[0016] First, weigh 100kg of cyanuric acid and 85kg of zinc oxide, first add cyanuric acid into the reaction kettle, add 80kg of water, turn on the stirring paddle for stirring, set the temperature at 50°C, and add zinc oxide after the temperature reaches the set temperature, and continue stirring 1.5h, then open the outlet valve and continue stirring until the material is dry. Open the discharge port, release the material, put the material into the mechanical pulverizer and jet pulverizer for pulverization and classification.

Embodiment 3

[0018] First, weigh 100kg of cyanuric acid and 75kg of zinc oxide, first add cyanuric acid into the reaction kettle, add 52.5kg of water, turn on the stirring paddle for stirring, set the temperature at 120°C, and add 75kg of zinc oxide after the temperature reaches the set temperature, Continue stirring for 2 hours, then open the outlet valve, and continue stirring until the material is dry. Open the discharge port, release the material, put the material into the mechanical pulverizer and jet pulverizer for pulverization and classification.

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PUM

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Abstract

The invention relates to a method for synthesizing zinc cyanurate by adopting a normal pressure method. Cyanuric acid and zinc oxide are mainly used as raw materials. The method comprises the following steps of: stirring the raw materials for 1 to 2 hours at the temperature of between 50 and 120 DEG C, drying to remove moisture, crushing the materials, and thus obtaining superfine zinc cyanurate powder with good dispersibility. The zinc cyanurate can be used for modification of an azodicarbonamide (ADC) foaming agent, is suitable for foaming of multiple rubbers of PVC, XPE, EVA and the like, and is uniform in sheet foamed holes and high in whiteness.

Description

technical field [0001] The invention relates to a method for synthesizing zinc cyanurate by an atmospheric pressure method. Background technique [0002] Zinc cyanurate and lead cyanurate are good heat stabilizers for polyvinyl chloride (PVC). They are used in PVC pipes, cable materials and floor boards. They can also be used as active substances for anti-corrosion coatings on metal surfaces. It can be used as a modification of ADC foaming agent. Adding a certain proportion of zinc cyanurate or lead cyanurate can effectively reduce the decomposition temperature of ADC foaming agent and adapt to the processing technology of rubber products. However, lead is a heavy metal and is a toxic chemical substance, so it must be replaced by non-toxic and harmless heat stabilizers such as calcium and zinc. [0003] At present, there are few manufacturers producing zinc cyanurate in China, and the production volume is not large. Most of them use the method of adding acetic acid to cyanu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/32
Inventor 董梅陈海贤
Owner HANGZHOU HI TECH FINE CHEM
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