Technological process for producing chlorinated isocyanuric acid

A technology of chlorinated isocyanuric acid and trichloroisocyanuric acid, which is applied in the field of chlorinated isocyanuric acid, achieves the effects of improved purity, good economic benefits, and remarkable environmental benefits

Inactive Publication Date: 2004-09-15
蚌埠晶显宏发化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a process for the production of trichloroisocyanuric acid and sodium dichloroisocyanurate with low consumption of reactants and no waste liquid discharge, so as to overcome the existing water phase method for producing chlorinated isocyanurate. uric acid deficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: get the cyanuric acid of 129g purity 98.5% (weight ratio), add in No. II 2000ml garden cylindrical reactor, add water and make suspension concentration reach 10%; Gas distributor and the pipeline that connects compressed air are placed in reaction At the bottom of the device, a high-speed stirrer is installed, and the stirring speed is 120 rpm. After adding purity 98% (weight ratio) heavy calcium carbonate powder 500g in the carbonate in No. I garden cylindrical reactor, seal and connect chlorine and carbonate reactor to take over, then connect No. I reactor with pipe Connected to the gas distributor in reactor II. The diameter of No. I reactor is 40mm, and height is 400mm, and the porosity of ground calcium carbonate powder is 30%. Start the high-speed agitator in the No. II reactor, and the amount of chlorine flowing in the No. I reactor is 215g, then the reaction in the No. II reactor generates trichloroisocyanuric acid, and the solid separation and dr...

Embodiment 2

[0013] Embodiment 2: Under the same conditions as the embodiment numbered 3, do the following experiments by different chlorine residence times:

[0014] Chlorine in CaCO 3 layer stay

[0015] The table above shows that it is economically reasonable for chlorine to stay in the carbonate layer for 4-60 seconds.

Embodiment 3

[0016] Embodiment 3: press embodiment 1 method, logical chlorine amount is 140g, gets 152g cyanuric acid monosodium salt and joins in II No. 2000ml garden cylindrical reactor, adds water and makes suspension concentration reach 10%, obtains dichloride after the reaction Sodium isocyanurate.

[0017] CaCO 3 Grain

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PUM

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Abstract

The production process of chlorinated isocyanuric acid is characterized by that it makes the chlorine gas pass through solid carbonate or solid bicarbonate powder to obtain mixed gas, and introduces the mixed gas into suspensoid of cyanuric acid or monosodium cyanurate to make reaction and obtain symclosene or sodium dichloroisocyanurate. Said ivnented process can produce pure chloride-free chlorinated isocyanuric acid, its product colour is good, and the residuum produced after reaction of carbonate or bicarbonate and chlorine gas is another product.

Description

technical field [0001] The technical field to which the technical solution claimed in the present invention belongs is chlorinated isocyanuric acid, specifically the production process of trichloroisocyanuric acid and sodium dichloroisocyanurate. Background technique [0002] Typical representative substances of chlorinated isocyanuric acid are trichloroisocyanuric acid and sodium dichloroisocyanurate, which are more and more widely used as a low-toxicity, high-efficiency, broad-spectrum disinfectant. However, at present, trichloroisocyanuric acid and sodium dichloroisocyanurate are produced by liquid phase method, that is, chlorine gas directly reacts with alkali, carbonate or isocyanate dissolved in water or other solvents. The disadvantage is: the consumption of reactants is large, and every ton of product produced will produce 6-9 tons of waste water, which contains a large amount of NaCl and trichloroisocyanuric acid or dichloroisocyanurate, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/54C07D251/70
Inventor 唐银华
Owner 蚌埠晶显宏发化工有限公司
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