Dibromo hydantoin fast dissolving tablet

A technology of dibromohydantoin and instant tablets, which can be applied to biocides, disinfectants, animal repellents, etc., can solve the problems of slightly soluble in water, and achieve the effect of complete products

Inactive Publication Date: 2012-01-18
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above disadvantages, thereby providing a dibromohydantoin instant tablet, which utilizes the anionic dispersibility characteristics of CMS to help dibromohydantoin dissolve, and the content of the finished product is completely dissolved without residue, and there is no strong irritation during production. Gas volatilization solves the problem that dibromohydantoin is slightly soluble in water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: A dibromohydantoin instant tablet of the present invention includes the following components and adopts the following process steps. The component ratio is calculated in parts by weight: 50% by weight of dibromohydantoin tablet raw materials and the ratio are :50 parts of dibromohydantoin, 5 parts of sodium carboxymethyl starch (CMS), 30 parts of sodium carbonate, 2 parts of sodium sulfite, 5 parts of 5,5 dimethyl hydantoin, 3 parts of sodium bicarbonate, 5 parts of tartaric acid. Dry the raw materials in a high-efficiency boiling dryer (model GFG, Changzhou Haijiang Pharmaceutical Machinery Factory) at 45°C for 10 hours, and then pulverize them with 100 meshes on a high-speed grinder (model FS, Changzhou Haijiang Pharmaceutical Machinery Factory) according to the compounding ratio. Take out the metering separately. Mix dibromohydantoin with alkaline raw materials (sodium carbonate, sodium sulfite, 5,5 dimethyl hydantoin, sodium bicarbonate), and the mixing in...

Embodiment 2

[0013] Example 2: A dibromohydantoin instant tablet of the present invention includes the following components, adopts the following process steps, and its component ratio is calculated in parts by weight: 40% by weight dibromohydantoin tablet

[0014] The raw materials and the ratio are: 40 parts of dibromohydantoin, 4 parts of sodium carboxymethyl starch (CMS), 40 parts of sodium carbonate, 1 part of sodium sulfite, 10 parts of 5,5 dimethyl hydantoin, 2 parts of sodium bicarbonate, 3 parts of tartaric acid. Dry the raw materials in a high-efficiency boiling dryer (model GFG, Changzhou Haijiang Pharmaceutical Machinery Factory) at 55°C for 15 hours, and then pulverize them with 180 mesh using a high-speed grinder (model FS, Changzhou Haijiang Pharmaceutical Machinery Factory) according to the preparation ratios. Take out the metering for use. Mix dibromohydantoin with alkaline raw materials (sodium carbonate, sodium sulfite, 5,5 dimethyl hydantoin, sodium bicarbonate), and the ...

Embodiment 3

[0015] Example 3: A dibromohydantoin instant tablet of the present invention includes the following components, adopts the following process steps, and its component ratio is calculated in parts by weight: 20% by weight dibromohydantoin tablet

[0016] The raw materials and the ratio are: 20 parts of dibromohydantoin, 3 parts of sodium carboxymethyl starch (CMS), 52 parts of sodium carbonate, 1 part of sodium sulfite, 20 parts of 5,5 dimethyl hydantoin, 2 parts of sodium bicarbonate, 2 parts of tartaric acid. Dry the raw materials in a high-efficiency boiling dryer (model GFG, Changzhou Haijiang Pharmaceutical Machinery Factory) at 65°C for 20 hours, and then pulverize them with 250 mesh using a high-speed grinder (model FS, Changzhou Haijiang Pharmaceutical Machinery Factory) according to the preparation ratio. Take out the metering for use. Mix dibromohydantoin with alkaline raw materials (sodium carbonate, sodium sulfite, 5,5 dimethyl hydantoin, sodium bicarbonate), and the m...

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PUM

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Abstract

The invention relates to a dibromo hydantoinfast dissolving tablet which is prepared in the following steps: mixing dibromo hydantoin with sodium carbonate, sodium sulfite, 5, 5-dimethyl hydantoin and sodium bicarbonate powders, adding sodium carboxymethyl starch (CMS) and tartaric acid, continuously mixing and stirring, and pressing the mixture into tablets through a performing machine . The dibromo hydantoinfast dissolving tablet does not stick a mould, is complete, has no residue when the components of the tablet are completely dissolved, and has no strong irritant gas volatilized in production. The invention solves the problem that the dibromo hydantoin is slightly soluble in water, can also control the dibromo hydantoin to be stably dissolved in the water in a quantitative mode at the same time, and is suitable for wastewater treatment of industrial circulating water, agriculture greenhouses, aquaculture, medical health, public health wastewater, reclaimed water utilization, and the like.

Description

Technical field [0001] The invention relates to a dibromohydantoin instant tablet, which is specifically suitable for industrial circulating cooling water, agricultural greenhouse planting, animal husbandry and aquaculture, medical and health, civil use, public health, sewage treatment, reclaimed water treatment, drinking water Disinfection and other fields. Background technique [0002] In the prior art, the properties of dibromohydantoin: 1.3-dibromo-5.5-dimethylhydantoin, abbreviated as DBDMH in English, and pure dibromodimethylhydantoin (dibromohydantoin) is a white solid. Melting point 196-198℃, industrial product is light yellow solid, melting point is 194-197℃, soluble in organic solvents such as chloroform, ethanol, acetone, slightly soluble in water, water solubility at 20℃ is 2.54g / L ( Effective bromine content), dibromohydantoin solid raw material content 98% effective bromine content 54%. [0003] Dibromohydantoin is a new generation of sterilization, disinfection, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/50A01N25/34A01P1/00
Inventor 何义进周群兰谢骏刘波成艳芬潘良坤
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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