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A kind of solid chlorine dioxide effervescent tablet and preparation method thereof

A chlorine dioxide effervescent tablet, chlorine dioxide parent technology, applied in the directions of botanical equipment and methods, biocides, disinfectants, etc., can solve the problems of reducing chlorine dioxide yield, equipment corrosion, complex equipment and the like, To achieve the effect of speeding up the dissolution rate, improving the reaction kinetics, improving the conversion rate and chemical yield

Active Publication Date: 2011-12-21
石家庄卫科生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also many patents, which also report on the preparation of one-pack chlorine dioxide powder, but there are deficiencies in the one-pack chlorine dioxide powder during use: when dissolving, if too much powder is added to a small amount of water, it will produce detonation Sound, this is the precursor of chlorine dioxide explosion
However, this method requires that the chlorite particles be coated with a film first, the equipment is complicated, the process is troublesome, and more auxiliary materials are added, resulting in a decrease in the content
[0010] Also have a lot of patents all have report to the preparation of chlorine dioxide tablet, but the chlorine dioxide precursor of tablet is mostly chlorite at present, and activator is solid acid, and reaction is self redox reaction of chlorite, This reduces the productive rate of chlorine dioxide, and the chlorine dioxide solution generated is an oxidative corrosive liquid, which has strong corrosion on equipment, etc., restricting the use of chlorine dioxide tablets

Method used

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  • A kind of solid chlorine dioxide effervescent tablet and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Tablets weighing 1.0 g were prepared using the following formulation.

[0089] Sodium chlorite 20kg

[0090] Bleach 10kg

[0091] Nano Zinc Oxide 0.5kg

[0092] Nano Magnesium Oxide 0.5kg

[0093] Sodium citrate 3kg

[0094] D-malic acid 42kg

[0095] Sucrose fatty acid ester 1kg

[0096] Anhydrous magnesium sulfate 18kg

[0097] Sodium bicarbonate 5kg

[0098] The tablet preparation process is carried out according to the following steps:

[0099] a. Add 0.25kg nanometer zinc oxide, 0.25kg nanometer magnesium oxide, 20kg sodium chlorite and 5kg sodium bicarbonate into the first mixing container, mix for 15-20 minutes, and use a coating passivator to treat the carbon dioxide The chlorine matrix is ​​coated and passivated for use.

[0100] b. Add 0.25kg of nano-zinc oxide, 0.25kg of nano-magnesium oxide and 10kg of bleaching essence to the second mixing container, mix for 15-20 minutes, and use a coating passivator to coat and passivate the bleaching essence ,s...

Embodiment 2

[0108] Tablets weighing 4.0 g were prepared using the following formulation.

[0109] Sodium chlorite 24kg

[0110] Bleach 12kg

[0111] Nano Zinc Oxide 1.0kg

[0112] Nano Magnesium Oxide 0.5kg

[0113] Nano magnesium carbonate 0.5kg

[0114] Sodium acetate 3kg

[0115] L-malic acid 41kg

[0116] Saponin 1kg

[0117] Anhydrous calcium chloride 15kg

[0118] Sodium bicarbonate 2.0kg

[0119] The tablet preparation process is carried out according to the following steps:

[0120] a. Add 0.5kg nano-zinc oxide, 0.25kg nano-magnesium oxide, 0.25kg nano-magnesium carbonate, 24kg sodium chlorite and 2kg sodium bicarbonate into the first mixing container, mix for 15-20 minutes, and use a coating blunt The oxidizing agent is used to coat and passivate the chlorine dioxide precursor for use.

[0121] b. Add 0.5kg nano-zinc oxide, 0.25kg nano-magnesium oxide, 0.25kg nano-magnesium carbonate and 12kg bleaching essence to the second mixing container, mix for 15-20 minutes, and u...

Embodiment 3

[0129] Tablets weighing 5.0 g were prepared using the following formulation.

[0130] Sodium chlorite 8kg

[0131] Bleach 5kg

[0132] Nano Magnesium Oxide 1.0kg

[0133] L-malic acid 25kg

[0134] Anhydrous sodium sulfate 15kg

[0135] Sodium carbonate 2.0kg

[0136] The tablet preparation process is carried out according to the following steps:

[0137] a. Add 0.5kg of nano-magnesium oxide, 8kg of sodium chlorite and 2kg of sodium carbonate into the first mixing container, mix for 15-20 minutes, and use a coating passivator to coat and passivate the chlorine dioxide precursor ,stand-by.

[0138] b. Add 0.5 kg of nano-magnesium oxide and 8 kg of bleaching essence into the second mixing container, mix for 15-20 minutes, and coat and passivate the bleaching essence with a coating passivation agent for use.

[0139] c. Add the mixture in the first mixing vessel in step a to the mixture in the second mixing vessel in step b, then add 15 kg of anhydrous sodium sulfate, mix ...

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Abstract

The invention belongs to the technical field of chemical engineering and relates to a solid chlorine dioxide effervescent tablet and a preparation method thereof. The solid chlorine dioxide effervescent tablet is prepared from the following raw materials in parts by weight: 8-30 parts of chlorine dioxide matrix, 5-20 parts of halogen source, 0.5-2 parts of cladding passivant, 0-5 parts of corrosion inhibitor, 25-60 parts of acidifier, 0-2 parts of surfactant, 15-24 parts of drying agent and an effervescing agent. By adopting the solid chlorine dioxide effervescent tablet and the preparation method thereof, the safety and the stability of a product and the yield of chlorine dioxide are obviously improved. In the solid chlorine dioxide effervescent tablet and the preparation method thereof,fine chloride is adopted to serve as halogen source, and malic acid is adopted to serve as the the acidifier, thereby, the sediment of calcium salt is avoided, and the corrosivity of the solution of the calcium salt is reduced. Moreover, the safe reliability of the product applied to disinfecting foods and drinking water is ensured.

Description

technical field [0001] The invention relates to a solid disinfection tablet capable of producing chlorine dioxide after being dissolved in water, in particular to a solid chlorine dioxide effervescent tablet and a preparation method thereof, belonging to the technical field of chemical industry. Background technique [0002] Chlorine dioxide is an efficient, non-toxic, rapid and broad-spectrum bactericidal disinfectant with strong oxidizing properties. It is an internationally recognized fourth-generation disinfectant. It can effectively kill bacteria, fungi, viruses, spores, etc. Microorganisms, its disinfection effect and environmental protection performance are better than the currently commonly used disinfectants such as hypochlorite, chlorine, ethylene oxide, and glutaraldehyde. Compared with chlorine, it does not produce carcinogens such as halogenated alkanes when it is used for drinking water disinfection. [0003] Chlorine dioxide products currently on the market m...

Claims

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Application Information

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IPC IPC(8): A01N59/00A01N25/34A01P1/00
Inventor 王奎涛吴海霞乔荣章买红英
Owner 石家庄卫科生物科技有限公司
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