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Dibromo hydantoin fast dissolving tablet

A technology of dibromohydantoin and instant tablets, which can be used in biocides, disinfectants, animal repellents, etc., can solve problems such as being slightly soluble in water, and achieve a complete product effect.

Inactive Publication Date: 2009-09-09
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] Embodiment 1: a kind of dibromohydantoin quick-dissolving tablet of the present invention comprises the following components, adopts the following process steps, and its component ratio is counted by weight: 50% by weight dibromohydantoin tablet raw material and proportioning 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 dimethylhydantoin, 3 parts of sodium bicarbonate, 5 parts of tartaric acid. The raw materials used were dried at 45°C for 10 hours in a high-efficiency boiling dryer (model GFG, Changzhou Haijiang Pharmaceutical Machinery Factory), and after drying, they were pulverized by a high-speed pulverizer (model FS, Changzhou Haijiang Pharmaceutical Machinery Factory) at 100 mesh. Take out the measurement separately. Dibromohydantoin and alkaline raw materials (sodium carbonate, sodium sulfite, 5,5 dimethylhydantoin, sodium bicarbonate) were mixed and stir...

Embodiment 2

[0013] Embodiment 2: A kind of dibromohydantoin quick-dissolving tablet of the present invention comprises the following components, adopts the following process steps, and its component proportion is counted by weight: 40% by weight dibromohydantoin tablet

[0014] Raw materials and proportions 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 tartaric acid. The raw materials used were dried at 55°C for 15 hours in a high-efficiency boiling dryer (model GFG, Changzhou Haijiang Pharmaceutical Machinery Factory), and after drying, they were pulverized by a high-speed pulverizer (model FS, Changzhou Haijiang Pharmaceutical Machinery Factory) at 180 mesh. Take out the measurement and set aside. Dibromohydantoin and alkaline raw materials (sodium carbonate, sodium sulfite, 5,5 dimethylhydantoin, sodium bicarbonate) were ...

Embodiment 3

[0015] Embodiment three: a dibromohydantoin quick-dissolving tablet of the present invention comprises the following components, adopts the following process steps, and its component ratio is calculated by weight: 20% by weight dibromohydantoin tablet

[0016] The raw materials and proportions 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 dimethylhydantoin, 2 parts of sodium bicarbonate, 2 parts tartaric acid. The raw materials used were dried at 65°C for 20 hours in a high-efficiency boiling dryer (model GFG, Changzhou Haijiang Pharmaceutical Machinery Factory), and after drying, they were pulverized by a high-speed pulverizer (model FS, Changzhou Haijiang Pharmaceutical Machinery Factory) at 250 mesh. Take out the measurement and set aside. Dibromohydantoin and alkaline raw materials (sodium carbonate, sodium sulfite, 5,5 dimethylhydantoin, sodium bicarbonate) were mix...

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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 quick-dissolving tablet, which is particularly suitable for industrial circulating cooling water, agricultural greenhouse planting, animal husbandry and aquaculture, medical and health care, civil use, public health, sewage treatment, reclaimed water reuse treatment, drinking water Disinfection and other fields. Background technique [0002] In the prior art, the properties of dibromohydantoin: 1.3-dibromohydantoin 5.5-dimethylhydantoin, English abbreviation DBDMH, dibromodimethylhydantoin (dibromohydantoin) pure product is white solid, The melting point is 196-198°C. The industrial product is light yellow solid with a melting point of 194-197°C. It is soluble in chloroform, ethanol, acetone and other organic solvents, and slightly soluble in water. The water solubility rate at 20°C is 2.54g / L ( Available bromine content), dibromohydantoin solid raw material content 98% and available bromine content 54%. ...

Claims

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Application Information

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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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