阅读说明：本技术 Qq-924复合高效杀菌剂 (QQ-924 composite high-efficiency bactericide ) 是由 张福新 于 2021-06-17 设计创作，主要内容包括：QQ-924复合高效杀菌剂,环氧氯丙烷10-30份、水5-20份、十二烷基叔胺10-40份、二甲胺10-50份。一种生产上述QQ-924复合高效杀菌剂的方法,其具体步骤为：将环氧氯丙烷10-30份、水5-20份、十二烷基叔胺10-40份,依次抽入反应釜釜底,开动搅拌,高位槽1内抽入10-50分二甲胺,高位槽2内加入1-10份水；30-40分钟后打开冷凝器,待反应釜内升温50-80℃,预反应10-30分钟,降温至30-50℃；开始匀速滴加二甲胺,控温40-50℃以下,滴加6—9小时；滴加完毕,高位槽2加入反应釜内1～10份水,冲洗管路,釜内升温50-80℃,继续反应2-6小时；降温至30-50℃,停止搅拌5-20分钟后,加水稀释,搅拌10-20分钟,过滤放料,即得本产品。(The QQ-924 composite efficient bactericide comprises 10-30 parts of epichlorohydrin, 5-20 parts of water, 10-40 parts of dodecyl tertiary amine and 10-50 parts of dimethylamine. A method for producing the QQ-924 composite high-efficiency bactericide comprises the following specific steps: pumping 10-30 parts of epichlorohydrin, 5-20 parts of water and 10-40 parts of dodecyl tertiary amine into the bottom of a reaction kettle in sequence, starting stirring, pumping 10-50 parts of dimethylamine into an overhead tank 1, and adding 1-10 parts of water into an overhead tank 2; opening a condenser after 30-40 minutes, pre-reacting for 10-30 minutes after the temperature in the reaction kettle rises to 50-80 ℃, and cooling to 30-50 ℃; dripping dimethylamine at constant speed, controlling the temperature to be below 40-50 ℃, and dripping for 6-9 hours; after the dropwise addition, adding 1-10 parts of water into the reaction kettle through the head tank 2, flushing the pipeline, heating the kettle to 50-80 ℃, and continuously reacting for 2-6 hours; cooling to 30-50 ℃, stopping stirring for 5-20 minutes, adding water for diluting, stirring for 10-20 minutes, filtering and discharging to obtain the product.)

The QQ-924 composite high-efficiency bactericide is characterized by being prepared from the following components in parts by weight:

10-30 parts of epichlorohydrin, 5-20 parts of water, 10-40 parts of dodecyl tertiary amine and 10-50 parts of dimethylamine.

2. A method for producing the QQ-924 composite high-efficiency bactericide as claimed in claim 1, which is characterized by comprising the following specific steps: pumping 10-30 parts of epichlorohydrin, 5-20 parts of water and 10-40 parts of dodecyl tertiary amine into the bottom of a reaction kettle in sequence, starting stirring, pumping 10-50 parts of dimethylamine into an overhead tank 1, and adding 1-10 parts of water into an overhead tank 2; opening a condenser after 30-40 minutes, pre-reacting for 10-30 minutes after the temperature in the reaction kettle rises to 50-80 ℃, and cooling to 30-50 ℃; dripping dimethylamine at constant speed, controlling the temperature to be below 50-80 ℃, and dripping for 6-9 hours; after the dropwise addition, adding 1-10 parts of water into the reaction kettle through the head tank 2, flushing the pipeline, heating the kettle to 50-80 ℃, and continuously reacting for 2-6 hours; cooling to 30-50 ℃, stopping stirring for 5-20 minutes, adding water for diluting, stirring for 10-20 minutes, filtering and discharging to obtain the product.

Technical Field

The invention belongs to the technical field of chemical products, and particularly relates to a QQ-924 composite efficient bactericide.

Background

In industrial water and civil water, water eutrophication has become one of the main factors that restrict water use. The excessive propagation of bacteria and algae seriously affects the function of water, on one hand, the water pipe is polluted, the filter tank is blocked, and water supply accidents are caused; on the other hand, the water body smells and the landscape is affected. In industry, biological slime can block heat exchange equipment and corrode metal, and safety production of factories is affected. Therefore, the control of bacteria and algae becomes a main water quality deterioration of water quality.

At present, chemical bactericides, including oxidizing bactericides and non-oxidizing bactericides, are generally adopted for treating bacteria and algae in industrial water systems at home and abroad. Common oxidizing biocides are: chlorine, chlorine dioxide, ozone, bromine-based bactericides and the like. Although the oxidizing bactericide has low price and small using amount, the oxidizing bactericide is easily influenced by water quality and corrosion and scale inhibitor and is easy to cause equipment corrosion; common non-oxidizing biocides are: heterocyclic compounds, organic aldehydes, cyanogen-containing compounds, quaternary ammonium salt compounds and the like, wherein isothiazolinone, glutaraldehyde and benzalkonium chloride are used in many cases. The partial non-oxidizing biocide has a bactericidal effect, a synergistic effect on bactericidal active components and a strong stripping and shedding effect on slime. However, the non-oxidizing biocides on the market at present have the problems of low conversion rate of reaction, low purity of finished products, complex synthesis process, long reaction time and the like, and most of the preparation processes are multi-step reactions, so that the next reaction can be carried out only after the byproducts of the previous reaction are obtained, the reaction steps are more, and the reaction time is also increased, so that the cost of enterprises is increased.

Disclosure of Invention

The invention provides a QQ-924 composite high-efficiency bactericide which can solve the problems pointed out in the background art.

The QQ-924 composite efficient bactericide is prepared from the following components in parts by weight:

10-30 parts of epichlorohydrin, 5-20 parts of water, 10-40 parts of dodecyl tertiary amine and 10-50 parts of dimethylamine.

A method for producing the QQ-924 composite high-efficiency bactericide comprises the following specific steps: pumping 10-30 parts of epichlorohydrin, 5-20 parts of water and 10-40 parts of dodecyl tertiary amine into the bottom of a reaction kettle in sequence, starting stirring, pumping 10-50 parts of dimethylamine into an overhead tank 1, and adding 1-10 parts of water into an overhead tank 2; opening a condenser after 30-40 minutes, pre-reacting for 10-30 minutes after the temperature in the reaction kettle rises to 50-80 ℃, and cooling to 30-50 ℃; dripping dimethylamine at constant speed, controlling the temperature to be below 40-50 ℃, and dripping for 6-9 hours; after the dropwise addition, adding 1-10 parts of water into the reaction kettle through the head tank 2, flushing the pipeline, heating the kettle to 50-80 ℃, and continuously reacting for 2-6 hours; cooling to 30-50 ℃, stopping stirring for 5-20 minutes, adding water for diluting, stirring for 10-20 minutes, filtering and discharging to obtain the product.

The invention provides a QQ-924 composite high-efficiency bactericide which has excellent bactericidal effect, wide range and low threshold. Has strong killing effect on aerobic bacteria and heterotrophic bacteria. The device has excellent functions of stripping and removing slime attached to the inner wall of equipment and pipelines and microorganism corpses, can kill various bacteria, fungi and other microorganisms in a circulating water system, and can be widely applied to the field of circulating cooling water treatment.

In addition, the method for producing the QQ-924 composite high-efficiency bactericide reduces the generation of byproducts by dripping dimethylamine at a constant speed, selects a proper reaction temperature, ensures the conversion rate of the reaction and improves the epoxy value of the product, has short reaction time, can be completed in the same reaction kettle as much as possible, and has a simpler preparation method.

Detailed Description

The present invention will be further illustrated with reference to the following examples.

Example 1:

the QQ-924 composite efficient bactericide is prepared from the following components in parts by weight:

15 parts of epoxy chloropropane, 10 parts of water, 10 parts of dodecyl tertiary amine and 15 parts of dimethylamine.

A method for producing the QQ-924 composite high-efficiency bactericide: pumping 15 parts of epichlorohydrin, 8 parts of water and 10 parts of dodecyl tertiary amine into the bottom of a reaction kettle in sequence, starting stirring, pumping 15 parts of dimethylamine into an overhead tank 1, and adding 2 parts of water into an overhead tank 2; opening a condenser after 30 minutes, pre-reacting for 20 minutes after the temperature in the reaction kettle rises to 50 ℃, and cooling to 48 ℃; dropwise adding dimethylamine at a constant speed, controlling the temperature to be below 48 ℃, and dropwise adding for 8 hours; after the dropwise addition, adding 2 parts of water into the reaction kettle in the elevated tank 2, flushing the pipeline, heating the kettle to 70 ℃, and continuing to react for 4 hours; cooling to 40 ℃, stopping stirring for 10 minutes, adding water for dilution, stirring for 15 minutes, filtering and discharging to obtain the product.

Example 2:

the QQ-924 composite efficient bactericide is prepared from the following components in parts by weight:

30 parts of epichlorohydrin, 20 parts of water, 15 parts of dodecyl tertiary amine and 30 parts of dimethylamine.

A method for producing the QQ-924 composite high-efficiency bactericide comprises the following specific steps: sequentially pumping 30 parts of epichlorohydrin, 18 parts of water and 15 parts of dodecyl tertiary amine into the bottom of a reaction kettle, starting stirring, pumping 30 parts of dimethylamine into an overhead tank 1, and adding 2 parts of water into an overhead tank 2; opening a condenser after 40 minutes, pre-reacting for 25 minutes after the temperature in the reaction kettle rises to 65 ℃, and cooling to 45 ℃; dropwise adding dimethylamine at a constant speed, controlling the temperature to be below 45 ℃, and dropwise adding for 9 hours; after the dropwise addition, adding 2 parts of water into the reaction kettle in the elevated tank 2, flushing the pipeline, heating the kettle to 65 ℃, and continuing to react for 5 hours; cooling to 45 ℃, stopping stirring for 15 minutes, adding water for dilution, stirring for 15 minutes, filtering and discharging to obtain the product.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.