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Sustained-release chlorine dioxide disinfectant and method for preparing same

A chlorine dioxide and disinfectant technology, applied in the directions of disinfectants, chemical instruments and methods, botanical equipment and methods, etc., can solve the problems of difficult preservation, high price, poor effect, etc., and achieve long shelf life and improved product shelf life. , The finished product is safe and reliable

Inactive Publication Date: 2018-10-16
张志 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current immobilized adsorbent is expensive, and reacts in the package to generate chlorine dioxide gas, which makes the immobilized finished product short shelf life, difficult to store, and poor in effect.

Method used

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  • Sustained-release chlorine dioxide disinfectant and method for preparing same
  • Sustained-release chlorine dioxide disinfectant and method for preparing same
  • Sustained-release chlorine dioxide disinfectant and method for preparing same

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The preparation method of a kind of slow-release chlorine dioxide disinfectant of the present invention is as follows:

[0025] (1) Prepare a mineral acid solution containing a surfactant. The surfactant is one or a mixture of perfluorononoxybenzene sodium sulfonate (OBS), sodium dodecylbenzenesulfonate, sodium lauryl sulfate, cocamidopropyl betaine, The addition amount is 1000-5000 mg / L of the total weight of the acid solution; the inorganic acid is one or a mixture of hydrochloric acid, sulfuric acid, and nitric acid, and the concentration is 0.5-5 mol / L; The acid-modified zeolite particles are obtained by suction filtration after immersing in an acid solution added with a surfactant at a ratio of 1:10 to 1:20 by weight to volume. The crystal structure of natural zeolite consists of three parts: aluminosilicate framework, the pores and cavities of exchangeable cations in the framework, and water molecules in the potential phase; this structure of natural zeolite make...

Embodiment 2

[0033] A kind of preparation method of slow-release chlorine dioxide disinfectant is as follows:

[0034] (1) Prepare a solution containing 1000 mg / L of perfluorononoxybenzene sulfonate (OBS) and 3 mol / L of hydrochloric acid as a surfactant; soak 0.5-1mm natural zeolite at a ratio of 1:10 by weight and volume of solid to liquid After adding the surfactant to the acid solution for 1-2 hours, the acid-modified zeolite particles are obtained by suction filtration;

[0035](2) Prepare a nitrate compound solution, which contains 0.2mol / L iron nitrate, 0.2mol / L manganese nitrate, and 0.1mol / L copper nitrate. Soak the acid-modified zeolite and the nitrate solution for 12 hours at a solid-to-liquid weight-to-volume ratio of 1:15, drain the supernatant, and roast at 500°C for 4 hours to obtain transition metal-loaded zeolite particles;

[0036] (3) Prepare coating agent. Mix sodium chlorite powder, silica gel powder and diatomaceous earth in a V-type mixer in a weight ratio of 2:1:1 ...

Embodiment 3

[0042] A kind of preparation method of slow-release chlorine dioxide disinfectant is as follows:

[0043] (1) Prepare a mixed solution containing surfactant sodium dodecylbenzenesulfonate, sodium dodecylsulfate, sulfuric acid, nitric acid, the concentration of sodium dodecylbenzenesulfonate is 2000mg / L, dodecylbenzenesulfonate The concentration of sodium sulfate is 1000mg / L, the concentration of sulfuric acid is 0.5mol / L, and the concentration of nitric acid is 0.5mol / L; soak 2-3mm natural zeolite in the mixed solution according to the ratio of solid-liquid weight to volume 1:15 2 hours, suction filtration to obtain acid-modified zeolite particles;

[0044] (2) Prepare a nitrate solution containing 0.1mol / L cerium nitrate, 0.2mol / L manganese nitrate, and 0.2mol / L copper nitrate, and mix the acid-modified zeolite and the nitrate solution in a ratio of 1:15 by solid-liquid weight-volume ratio After soaking for 20 hours, draining the supernatant, and roasting at 800°C for 4 hour...

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Abstract

The invention discloses a sustained-release chlorine dioxide disinfectant and a method for preparing the same. The method includes steps of S1, mixing sodium chlorite powder, silica gel powder and diatomaceous earth with one another according to certain proportions to obtain coating agents; S2, mixing the coating agents and carrier granules with one another, feeding the coating agents and the carrier granules into granulators, spraying adhesive into the granulators and carrying out coating, granulating and drying to obtain the sustained-release chlorine dioxide disinfectant; S3, packing the sustained-release chlorine dioxide disinfectant in air permeable bags. The sustained-release chlorine dioxide disinfectant and the method have the advantages that finished products of the sustained-release chlorine dioxide disinfectant prepared by the aid of the method are safe and reliable and are free of harm on human bodies; bacteria and viruses in air can be effectively killed by the sustained-release chlorine dioxide disinfectant, and harmful substances such as formaldehyde can be degraded by the sustained-release chlorine dioxide disinfectant; the finished products are long in shelf life,and the shelf lives of the finished products can be greatly prolonged under wet-insulation storage conditions.

Description

technical field [0001] The invention relates to the field of disinfectant preparation, in particular to a slow-release chlorine dioxide disinfectant and a preparation method thereof. Background technique [0002] Chlorine dioxide is a non-toxic, harmless and highly effective strong oxidizing bactericidal disinfectant, which has the functions of antisepsis, deodorization and preservation. The sterilization performance of chlorine dioxide lies in the fact that the new ecological oxygen released when it contacts with microorganisms has strong adsorption and penetration to microbial cells, can effectively oxidize sulfur-containing enzymes in cells, destroy enzyme systems, and at the same time It can also oxidize and decompose amino acids in proteins, so as to quickly control the synthesis of microbial proteins, and have the effect of inhibiting bacterial growth or killing bacteria. Chlorine dioxide has a good killing effect on spores, viruses, algae and fungi, but has no effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/18A01N59/00A01P1/00B01D53/72B01D53/86
CPCA01N25/18A01N59/00B01D53/8668
Inventor 汪扬张志李卫东
Owner 张志
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