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Cyanuric acid production apparatus and application of same

A technology of cyanuric acid and a production device, which is applied in the field of cyanuric acid production devices, can solve the problems of low product conversion rate, high operating cost, difficult product separation, etc., and achieves sufficient urea reaction, high raw material yield, The effect of low energy consumption

Inactive Publication Date: 2017-03-01
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The deficiencies in the production equipment of the vibrating fluidized bed method are: (1) The equipment is complicated, the operation is cumbersome, and the operation requirements of each part are strict.
(2) The reaction temperature is high, making the operation cost expensive
(3) Severe material leakage occurs in production, and the product conversion rate is low, which causes difficulties in the separation of products

Method used

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  • Cyanuric acid production apparatus and application of same

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Embodiment 1

[0035] As shown in Figure 1.

[0036] A cyanuric acid production device, comprising a reactor box 6, a transmission system and an ammonia recovery device; the transmission system is arranged through the reactor box 6; a heating device 5 is arranged in the reaction box 6 , ammonia outlet 3 and a plurality of reaction chambers 1; the plurality of reaction chambers 1 are arranged in series; the ammonia outlet 3 is connected with an ammonia recovery device, and the ammonia recovery device is a gas-solid separation device; The gas-solid separation device is a cooler. The raw material urea enters the reactor box 6 through the reactor box inlet 9, and the urea is heated to generate ammonia gas and cyanuric acid, and the ammonia gas is recycled through the ammonia gas recovery device. The arrangement of the reaction chambers 1 in parallel or in series increases the reaction area and improves the reaction efficiency. The gas-solid separation device separates the solid urea entrained ...

Embodiment 2

[0041] As the cyanuric acid production device described in embodiment 1, its difference is that the gas-solid separation device is a bag filter.

Embodiment 3

[0043] The cyanuric acid production device as described in embodiment 1, its difference is, described heating device 5 is arranged on the periphery of reactor casing 6 inner walls; Described heating device 5 is an infrared heating device; Described reaction casing 6 An anti-radiation layer is arranged on the outer wall. The infrared heating device is a green energy source with low energy consumption, clean and pollution-free, and has high heating efficiency and good heating effect.

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Abstract

The invention relates to a cyanuric acid production apparatus and an application of same. The cyanuric acid production apparatus comprises a reactor box body, a transmission system, and an ammonia recovery apparatus. The transmission system is disposed throughout the reactor box body. A heating apparatus, an ammonia outlet and a plurality of reaction chambers are disposed in the reactor box body. The reaction chambers are arranged in parallel or in series. The ammonia outlet is connected to the ammonia recovery apparatus. A raw material, urea, enters the reactor box body through a reactor box body inlet and is heated to generate ammonia gas and the cyanuric acid, wherein the ammonia gas is recovered by means of the ammonia recovery apparatus. The reaction chambers are arranged in parallel or in series so as to increase reaction area and further improve reaction efficiency.

Description

technical field [0001] The invention relates to a cyanuric acid production device and its application, belonging to the technical field of chemical production. Background technique [0002] Cyanuric acid (Cyanuric acid referred to as CA), that is, cyanuric acid, was discovered by the Swiss chemist Schells in 1776 when he pyrolyzed urea crystals. Cyanuric acid is an important organic synthesis intermediate, which is widely used in the synthesis of resins, adhesives, pesticides, antioxidants and disinfectants with excellent performance. The synthesis methods of cyanuric acid include: phosgene and ammonia reaction synthesis method, cyanic acid polymerization method, urea pyrolysis method, etc. Among them, urea pyrolysis is widely used. The specific methods for preparing cyanuric acid by pyrolysis of urea include melting method, molten salt pyrolysis method, and solvent pyrolysis method; among them, the first two methods for preparing cyanuric acid by pyrolysis of urea need to...

Claims

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Application Information

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IPC IPC(8): B01J19/18B01J19/08B01J19/12B01J8/00C07D251/32
Inventor 朱维群王倩郭庆伟马路业袁爱丽齐情情房亚杰
Owner SHANDONG UNIV