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Process for preparing mono package sterilizing granule capable of generating chlorine dioxide

A technology of chlorine dioxide and granules, which is applied in the field of preparation of one-package disinfection granules, can solve problems such as inconvenient use, and achieve the effects of expanding application range, safe use, and good stability

Inactive Publication Date: 2005-03-02
LVDI BIOCHEM SCI & TECH DALIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because chlorine dioxide content is on the low side (2%) in the stable chlorine dioxide aqueous solution, and needs to carry out activation with acid (solid acid or liquid acid) in use, brings some inconvenience to use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Preparation of activator: Take 100 grams of monosodium phosphate, add 0.2 grams of nickel acetate, dissolve, heat, evaporate, crystallize, dry, and sieve (20-40 mesh) according to the conventional process, and then take 13.6 grams of the particles , then add 0.2 gram of methyl cellulose, 0.2 gram of calcium chloride after passivation treatment in the passivator, called active inorganic salt.

[0023] Note: The passivation treatment adopts the conventional method: dissolve the passivation raw material and mix it with the material, put it into the passivator to stir and dry. (same below)

[0024] Then passivate 20-40 mesh weight of 20.4 grams of oxalic acid, 22.0 grams of citric acid, 0.5 grams of gum arabic and 0.5 grams of calcium chloride.

[0025] The active inorganic salt, oxalic acid and citric acid are mixed to form the activator.

[0026] 2. Carry out sodium chlorite recrystallization, passivation treatment: after getting 100 grams of sodium chlorite and addi...

Embodiment 2

[0031] 1. Prepare the activator: get 100 grams of sodium bisulfate, add 0.2 gram of nickel acetate, dissolve, heat, evaporate, crystallize, dry, sieve (20-40 mesh) according to the conventional process, get the granule 16.3 grams, Then add 0.2 gram of methyl cellulose and 0.2 gram of calcium chloride and passivate it in a passivator to claim active inorganic salt.

[0032] Then 22.3 grams of phosphorous acid, 15.7 grams of fumaric acid, 0.5 grams of methyl cellulose and 0.5 grams of calcium chloride were added for passivation treatment.

[0033] The active inorganic salt, phosphorous acid and fumaric acid are mixed to form the activator.

[0034] 2. Carry out sodium chlorite recrystallization, passivation treatment: get 100 grams of sodium chlorite, after adding 0.2 gram of cobaltous chloride, dissolve, heat, evaporate, crystallize, dry, sieve according to conventional process (20 -40 mesh), get this granule 45.7 grams and add 0.6 gram methylcellulose, 0.6 gram calcium chlori...

Embodiment 3

[0039] 1. Prepare the activator: get 100 grams of potassium dihydrogen sulfate, add 0.1 gram of nickel acetate, dissolve, heat, evaporate, crystallize, dry, and sieve (20-40 mesh) according to the conventional process, and then take 14.5 grams of the granules , then add 0.2 gram of methyl cellulose, 0.2 gram of calcium chloride after passivation treatment in the passivator, called active inorganic salt.

[0040] Then add 24.5 grams of fumaric acid and 16.0 grams of tartaric acid with a weight of 20-40 meshes, add 0.6 grams of sodium hydroxymethyl starch and 0.6 grams of calcium chloride, and carry out passivation treatment together.

[0041] The active inorganic salt, fumaric acid and tartaric acid are mixed to form the activator.

[0042] 2. Carry out sodium chlorite recrystallization, passivation treatment: get 100 grams of sodium chlorite, after adding 0.3 gram of cobaltous chloride, dissolve, heat, evaporate, crystallize, dry, sieve according to conventional process (20 -...

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PUM

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Abstract

The process of preparing sterilizing granule capable of generating chorine dioxide in one package includes the following steps: preparing activating agent; mixing inorganic salt and nickel acetate, re-crystallization, sieving and deactivation; sieving and deactivating solid acid; mixing with inorganic salt; mixing sodium chlorite and cobaltous chloride, re-crystallization, sieving and deactivation; and mixing the activating agent with sodium chlorite. The product of the present invention inside one package is stable, safe, and convenient in transportation; and contains chlorine dioxide in 28 wt%, its activating rate over 95 %. The product has wide application range in drinking water, food processing, fruit and vegetable cleaning, etc.

Description

technical field [0001] The invention relates to a preparation method of a broad-spectrum and high-efficiency bactericidal disinfectant, in particular to a preparation method of one-package disinfection granules capable of rapidly releasing chlorine dioxide in water. Background technique [0002] Chlorine dioxide is a new type, high-efficiency, and broad-spectrum bactericidal disinfectant. It is a strong oxidant and can be used in a wide range of fields. For example, it can be used in urban and rural drinking water sterilization; Disinfection of equipment and environment; aquaculture; sterilization and disinfection of water for livestock breeding and its environment; disinfection of waste water and sewage; preservation of fruits, vegetables, meat, eggs, poultry, etc. [0003] Since the stable chlorine dioxide aqueous solution in the United States entered the Chinese market in the late 1980s, its sterilization effect is much higher than that of the currently used chlorine prep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B11/02
Inventor 李淑春
Owner LVDI BIOCHEM SCI & TECH DALIAN
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