Continuous production method of sodium dichloroisocyanurate

By adopting continuous production system and multi-stage process processing in the sodium dichloroisocyanurate production process, the problems of cumbersome production steps, low efficiency and high cost in the existing technology are solved, and efficient and continuous production processes are achieved, and the process is reduced. Pollution.

CN114736167BActive Publication Date: 2025-02-07HEBEI LIUHE CHEM CO LTD
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Patent Information

Application Number
CN202210421571.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-21
Publication Date
2025-02-07
Estimated Expiration
2042-04-21

AI Technical Summary

Technical Problem

The existing sodium dichloroisocyanurate production process has problems such as cumbersome production steps, low production efficiency and production volume and high production costs.

Method used

Using a continuous production system, dichloroisocyanuric acid is produced through a tandem chlorination reactor, and a wet product dichloroisocyanuric acid is separated by a tandem centrifuge. The mother liquid is dechlorinated and neutralized through a high concentration of calcium chloride solution, and multi-stage mixing is used. The feeder mixes the wet dichloroisocyanuric acid with sodium carbonate, and the mixture is reacted through a marinating chamber and dried through a fluidized bed to finally granulate sodium dichloroisocyanurate granules.

Benefits of technology

Continuous production of sodium dichloroisocyanurate has been achieved, production efficiency and production volume have been improved, production costs have been reduced, and air pollution has been reduced through exhaust gas treatment devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a method for continuous production of sodium dichloroisocyanurate, which belongs to the technical field of chemical production. With cyanuric acid and calcium carbonate as raw materials, dichloroisocyanuric acid is produced by a series chlorination reactor; a series centrifuge is used to separate and obtain wet dichloroisocyanuric acid, and a mother liquor is subjected to a dechlorination and neutralization process to obtain a calcium chloride solution, and then a high-concentration calcium chloride solution is obtained by a concentration process; a multi-stage mixer is used to mix the wet dichloroisocyanuric acid and sodium carbonate to obtain a mixed material; the mixed material is reacted in a conveying maturation bin to obtain sodium dichloroisocyanurate, and a fluidized bed is used for drying, and finally granulation is performed to obtain sodium dichloroisocyanurate particles; the tail gas discharged from each process is connected to a tail gas treatment device, so as to reduce the emission of polluted gases and achieve standard emission. The present invention can realize the continuous production of sodium dichloroisocyanurate, improve production efficiency and production volume, and reduce production costs.
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Citation Information

Patent Citations

  • Clean production process of sodium dichloroisoyanurate

    CN101386603A

  • Method for continuously synthesizing sodium dichloro isocyanurate dihydrate by wet process

    CN102206192A

  • Production method of sodium dichloro isocyanurate

    CN103772306A