Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Bromochloro glucolylurea steribizing and disinfecting algae cide preparing method

A technology of bactericidal algicide and bromochlorohydantoin, which is applied in the fields of botanical equipment and methods, biocides, animal repellents, etc., can solve the problems of low product purity, high cost, low yield, etc., and achieves operational control. Simple, low waste water discharge and high product yield

Inactive Publication Date: 2005-05-04
LONGKOU KEDA CHEM
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above three methods all have the disadvantages of difficult production control, low yield, high cost, low product purity and poor product color

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bromochloro glucolylurea steribizing and disinfecting algae cide preparing method
  • Bromochloro glucolylurea steribizing and disinfecting algae cide preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add 140Kg of dimethyl hydantoin and 1080Kg of water into a 2000-liter glass-lined reactor, stir at room temperature for 15 minutes, then control the temperature at 5°C, and simultaneously add 134Kg of 34.5% sodium hydroxide solution in proportion to the online metering device, Add bromine 90Kg dropwise, after sodium hydroxide and bromine pass through, continue to stir and react for 30 minutes at 5°C, then control the temperature at 3°C, and add 122Kg of 34.5% sodium hydroxide dropwise in proportion through an online metering device at the same time, pass through Chlorine 117Kg, when the sodium hydroxide is dripped, the remaining chlorine is 5Kg, and continue to drip, then still stir and react at 3°C ​​for 40 minutes, then send the reaction material to a centrifuge for separation, then wash with 110Kg water, shake it off, and leave it at 60 Dried at -80°C to obtain 253Kg of white powder crystalline bromochlorohydantoin, with a yield of 96.2% and a purity of 99.2%; The re...

Embodiment 2

[0016] Add 140Kg of dimethylhydantoin and 1080Kg of water into a 2000-liter glass-lined reactor, stir at room temperature for 15 minutes, then control the temperature at 12°C, and simultaneously add 130Kg of 35.5% sodium hydroxide solution in proportion to the online metering device, Add 90Kg of bromine dropwise. After the alkali and bromine have passed through, continue to stir the reaction for 30 minutes at 12°C, then control the temperature at 10°C, and add 118Kg of 35.5% sodium hydroxide dropwise in another proportion through an online metering device, and pass Chlorine 117Kg, when dripping alkali, residual chlorine 5Kg, and continue to pass through, then still stirred and reacted at 10 ℃ for 40 minutes, and the reaction ended. Send the reaction materials to a centrifuge for separation, wash them with 110Kg of water, shake them off, and dry them at 60-80°C to obtain 253Kg of white powder crystal bromide chlorohydantoin, with a yield of 96.2% and a purity of 99.2%; Add 140K...

Embodiment 3

[0018] Add 140Kg of dimethyl hydantoin and 1080Kg of water into a 2000-liter glass-lined reactor, stir at room temperature for 15 minutes, then control the temperature at 9°C, and simultaneously add 132Kg of 35% sodium hydroxide solution in proportion to the online metering device, Add 90Kg of bromine dropwise. After the alkali and bromine are passed through, continue to stir the reaction for 30 minutes at 9°C, then control the temperature at 3-10°C, and add 120Kg of 35% sodium hydroxide dropwise in another proportion through the online metering device , logical chlorine 117Kg, when dripping alkali, remaining chlorine 5Kg, and continue to logically complete, then still stir reaction at 9 ℃ for 40 minutes, and reaction finishes. Send the reaction materials to a centrifuge for separation, wash them with 110Kg of water, shake them off, and dry them at 60-80°C to obtain 253Kg of white powder crystal bromide chlorohydantoin, with a yield of 96.2% and a purity of 99.2%; Add 140Kg of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a kind of manufacturing method of bromine-chlorine hydantoin disinfection algaecide. It uses 5,5-dimethyl hydantoin as main material; and then make it dissolve in water or in mother liquor contained sodium bromide that generated in dibromine hydantoin production; uses bromine element and chlorine gas as halogenating agent, and meanwhile, dropwise sodium hydroxide solution in order to proceed bromination and chloridization reaction; after the halogenation product having centrifugation, water washing, and drying treatment, bromine-chlorine hydantoin can be get. The features are as follows: the concentration of sodium hydroxide solution added in is 33-37%; use online measurement to control adding molar composition of material, so that it can proceed instant optimal controls all through the reaction. It has the remarkable effictiveness, such as simple operation, high product yield that can reach up to more than 96%, high product purity that can reach to more than 99%, low discharge capacity.

Description

1. Technical field [0001] The invention belongs to the preparation technology of halogenated hydantoin, and in particular relates to a preparation method of bromochlorohydantoin disinfection, sterilization and algicide. 2. Background technology [0002] The earliest application of halogenated hydantoin was dichlorohydantoin. At present, dichlorohydantoin is rarely used and has been replaced by bromochlorohydantoin and dibromohydantoin. In the late 1970s, the Great Lakes Chemical Company of the United States industrialized and commercialized bromochlorohydantoin. Because this product is a bromine-chlorine integrated preparation with organic substances as the carrier, and the bromine preparation plays a leading role in its action process, it has become the latest type. Green disinfectant, which has stable properties, overcomes the shortcomings of traditional chlorine preparations (such as bleaching powder, bleaching powder, sodium hypochlorite, etc.) that chlorine is easy to l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/50C07D235/26
Inventor 姜延益
Owner LONGKOU KEDA CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com