Compound bactericide and algicide

Abstract

The invention discloses an efficient compound disinfection and algae-killing agent which is prepared from the following components in parts by weight: 30-40 parts of 2,2-dibromo-3-nitrilopropanamide, 20-35 parts of methylisothiazolinone, 15-30 parts of methylene dithiocyanate, 6-12 parts of glutaraldehyde, 5-10 parts of quaternary ammonium salt cationic surface active agent, 3-5 parts of dispersing agent NNO, 3-5 parts of gas-phase silicon dioxide, and 200-300 parts of deionized water. All components have better coordination and cooperation properties and develop a synergistic effect, thus the efficient compound disinfection and algae-killing agent has the advantages of broad spectrum, high efficiency, durable pesticide effect, strong stripping seepage force and the like. According to the efficient compound disinfection and algae-killing agent, the defect of an existing oxidative disinfection and algae-killing agent is improved. Compared with commercially available like products in disinfection and algae-killing effect, the efficient compound disinfection and algae-killing agent has the characteristics of durability, high efficiency and stability, and has a good popularization value.

Description

technical field

[0001] The invention relates to a water treatment agent, in particular to a high-efficiency composite bactericide and algicide. Background technique

[0002] Bactericide algicide is a chemical that can inhibit the growth of bacteria, algae and microorganisms in water to prevent the formation of microbial slime and cause harm to the system. Take the common oxidative bactericidal algaecide as an example, the oxidative bactericidal algaecide is usually a strong oxidizing agent, such as chlorine gas, chlorazine, hypochlorite, etc. The algicide has weak penetrating ability and has no obvious effect on groups of algae and slime. It can react with organic matter in water to form harmful organic halides, and the oxidative bactericidal algicide is affected by organic matter in water and has reducing properties. The impact of the substance is greater, the duration of the drug effect is short, and it is also greatly affected by the pH value of the water.

[0003] Ther...

Examples

Embodiment 1

[0015] Example 1: Add 35 parts of methylisothiazolinone, 6 parts of glutaraldehyde, and 300 parts of deionized water into the preparation kettle and stir at room temperature for 12 minutes; add 10 parts of didodecyldimethylammonium chloride , Add 5 parts of diffusing agent NNO into the blending kettle, stir for 12 minutes; raise the temperature of the blending kettle to 80°C, add 15 parts of dithiocyanomethane powder, 2,2-dibromo-3-nitrilopropionamide powder Add 40 parts and 3 parts of fumed silica into the preparation kettle, and stir for 30 minutes to obtain the product.

Embodiment 2

[0016] Example 2: 20 parts of methylisothiazolinone, 12 parts of glutaraldehyde, and 200 parts of deionized water were added to the preparation kettle and stirred at room temperature for 8 minutes; 5 parts of didodecyldimethylammonium chloride , Add 3 parts of diffusing agent NNO into the blending kettle, stir for 8 minutes; raise the temperature of the blending kettle to 80°C, add 30 parts of dithiocyanomethane powder, 2,2-dibromo-3-nitrilopropionamide powder Add 30 parts and 4 parts of fumed silica into the preparation kettle, and stir for 20 minutes to obtain the product.

Embodiment 3

[0017] Example 3: 25 parts of methylisothiazolinone, 8 parts of glutaraldehyde, and 252 parts of deionized water were added to the preparation kettle and stirred at room temperature for 10 minutes; 8 parts of didodecyldimethylammonium chloride , Add 4 parts of diffusing agent NNO into the blending kettle, stir for 10 minutes; raise the temperature of the blending kettle to 80°C, add 20 parts of dithiocyanomethane powder, 2,2-dibromo-3-nitrilopropionamide powder Add 35 parts and 3 parts of fumed silica into the blending kettle and stir for 25 minutes to obtain

technical field

[0001] The invention relates to a water treatment agent, in particular to a high-efficiency composite bactericide and algicide. Background technique

[0002] Bactericide algicide is a chemical that can inhibit the growth of bacteria, algae and microorganisms in water to prevent the formation of microbial slime and cause harm to the system. Take the common oxidative bactericidal algaecide as an example, the oxidative bactericidal algaecide is usually a strong oxidizing agent, such as chlorine gas, chlorazine, hypochlorite, etc. The algicide has weak penetrating ability and has no obvious effect on groups of algae and slime. It can react with organic matter in water to form harmful organic halides, and the oxidative bactericidal algicide is affected by organic matter in water and has reducing properties. The impact of the substance is greater, the duration of the drug effect is short, and it is also greatly affected by the pH value of the water.

[0003] Ther...

Examples

Embodiment 1

[0015] Example 1: Add 35 parts of methylisothiazolinone, 6 parts of glutaraldehyde, and 300 parts of deionized water into the preparation kettle and stir at room temperature for 12 minutes; add 10 parts of didodecyldimethylammonium chloride , Add 5 parts of diffusing agent NNO into the blending kettle, stir for 12 minutes; raise the temperature of the blending kettle to 80°C, add 15 parts of dithiocyanomethane powder, 2,2-dibromo-3-nitrilopropionamide powder Add 40 parts and 3 parts of fumed silica into the preparation kettle, and stir for 30 minutes to obtain the product.

Embodiment 2

[0016] Example 2: 20 parts of methylisothiazolinone, 12 parts of glutaraldehyde, and 200 parts of deionized water were added to the preparation kettle and stirred at room temperature for 8 minutes; 5 parts of didodecyldimethylammonium chloride , Add 3 parts of diffusing agent NNO into the blending kettle, stir for 8 minutes; raise the temperature of the blending kettle to 80°C, add 30 parts of dithiocyanomethane powder, 2,2-dibromo-3-nitrilopropionamide powder Add 30 parts and 4 parts of fumed silica into the preparation kettle, and stir for 20 minutes to obtain the product.

Embodiment 3

[0017] Example 3: 25 parts of methylisothiazolinone, 8 parts of glutaraldehyde, and 252 parts of deionized water were added to the preparation kettle and stirred at room temperature for 10 minutes; 8 parts of didodecyldimethylammonium chloride , Add 4 parts of diffusing agent NNO into the blending kettle, stir for 10 minutes; raise the temperature of the blending kettle to 80°C, add 20 parts of dithiocyanomethane powder, 2,2-dibromo-3-nitrilopropionamide powder Add 35 parts and 3 parts of fumed silica into the blending kettle and stir for 25 minutes to obtain

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