Process for producing bromo chloro isocyanuric acid and its use

A technology of chlorobromoisocyanuric acid and production process, which is applied in the direction of application, biocide, plant growth regulator, etc., can solve the problems of production steps, complicated process, high requirements for production equipment, high equipment cost, etc., and achieve convenient process The effect of control, low equipment requirements, and cost reduction

Active Publication Date: 2005-09-14
JIANGSU DONGBAO AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production steps and processes of the above two methods are complicated, difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] 1. Chlorobromoisocyanuric acid production

[0020] a. Deamination and cyclization of urea and ammonium chloride to form cyanuric acid: put 1 mol of urea and ammonium ammoniation that is one-twentieth of the weight of urea in a condensation furnace to heat and condense, and the furnace temperature rises to 140°C to 150°C , kept for half an hour, then continued to heat up to 190-220°C, condensed for 1 hour, and finally kept at 250°C for half an hour, and cooled to obtain crude cyanuric acid; grind the crude cyanuric acid and add it to a reactor with a reflux condenser. Add hydrochloric acid equivalent to the weight of cyanuric acid, the concentration of hydrochloric acid is 10%, heat and reflux acid hydrolysis for 2 hours, cool, filter and wash until neutral, and bake at 120°C for 2 hours to obtain fine cyanuric acid.

[0021] b. Suspend 129kg of cyanuric acid in 500-600kg of water and 7.5kg of surfactant to prepare a cyanuric acid suspension.

[0022] c. Add 750kg sodiu...

example 2

[0029] 1. Chlorobromoisocyanuric acid

[0030] a. Deamination and cyclization of urea and ammonium chloride to form cyanuric acid: put 1 mol of urea and ammonium ammoniation that is one-twentieth of the weight of urea in a condensation furnace to heat and condense, and the furnace temperature rises to 140°C to 150°C , kept for half an hour, then continued to heat up to 190-220°C, condensed for 1 hour, and finally kept at 250°C for half an hour, and cooled to obtain crude cyanuric acid; grind the crude cyanuric acid and add it to a reactor with a reflux condenser. Add hydrochloric acid equivalent to the weight of cyanuric acid, the concentration of hydrochloric acid is 10%, heat and reflux acid hydrolysis for 2 hours, cool, filter and wash until neutral, and bake at 120°C for 2 hours to obtain fine cyanuric acid.

[0031] b. Disperse 129kg of cyanuric acid in 500-600kg of water and 7.5kg of surfactant to prepare a cyanuric acid suspension.

[0032] C, add 1mol bromine in 1mol ...

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PUM

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Abstract

This invention relates to a manufacturing technique and its use of chlorine bromine isocyanuric acid. Urea and cyanamide are cyclized to cyanuric acid, and then be made into cyanuric acid suspension. Sodium hypochlorite and sodium hypobromite are added to make chlorination and bromination reaction. Chlorine bromine isocyanuric acid is got after filtration, scrubbing to filter cake, srying of the resultant. The compound of chlorine bromine isocyanuric acid and light fertilizer can be used to produce agriculture chemicals fungicide. The sodium hypochlorite and sodium hypobromite are added with no order, so its technique is convenient to control. Comparing to exist technique using chlorine and bromine gas, the sodium hypochlorite and sodium hypobromite used are liquor and hard to evaporate. The equipment request is not high, and the equipment cost can be reduced greatly, mass production cost also can be greatly reduced.

Description

technical field [0001] The present invention relates to a kind of production process and application of compounded chlorobromoisocyanuric acid. Background technique [0002] Chlorobromoisocyanuric acid (molecular formula HN 3 C 3 o 2 BrCl) is widely used as a disinfectant, because its original production process is dangerous, so its production cost remains high, so its cost as a disinfectant is extremely high. In the existing chlorobromoisocyanuric acid, urea and ammonium chloride are deaminated and cyclized first to form cyanuric acid, then sodium hydroxide is introduced into the cyanuric acid suspension to synthesize sodium cyanurate, and then sequentially introduced into Chlorination with chlorine gas and bromination with bromine gas to form chlorobromoisocyanuric acid. The other is to deamination cyclize urea and ammonium chloride to form cyanuric acid, then synthesize sodium cyanurate, and then introduce bromine chloride to synthesize chlorobromoisocyanuric acid. ...

Claims

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Application Information

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IPC IPC(8): A01N47/40C05G3/60C07C263/06C07C265/04
Inventor 宋国庆童振祥
Owner JIANGSU DONGBAO AGROCHEM
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