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[Chemical Knowledge]：Production method and process of polyether defoamer

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The manufacturing method
of polyether defoamer
1. Introduction

In the chemical production process, foam problems often affect production efficiency and product quality. In order to solve the problem of foam, defoamers are widely used. Among them, polyether defoamer has become an important additive in chemical production because of its excellent performance and wide application. This article will introduce the manufacturing method of polyether defoamer in detail.

2. Materials and Methods

1. Material

(1) Ethylene Oxide (EO)

(2) Propylene Alcohol (PO)

(3) Initiator (such as glycerol, propylene glycol, etc.)
2.
of Equipment

(1) Reactor

(2) Agitator

(3) Thermometer

(4) Pressure Gauge

3. Manufacturing Method

(1) Add starter and catalyst in the reactor, heat to the appropriate temperature.

(2) While stirring, ethylene oxide and allyl alcohol were gradually added, and the feeding rate and the reaction temperature were controlled to carry out the polymerization reaction. After the reaction of

(3) is completed, a post-treatment is carried out, including neutralization, decolorization, filtration and the like, to obtain a polyether defoaming agent.

3. Results and Discussion

1. Results

Through the above method, we successfully produced polyether defoaming agent. The product has good defoaming performance and stability, and can meet the requirements of chemical production.

2. Discussion

In the manufacturing process, we need to pay attention to the following points: First, control the feeding speed and reaction temperature to ensure the smooth progress of the polymerization reaction; secondly, pay attention to product quality during the post-processing process to ensure the defoaming agent Purity and activity; finally, pay attention to safety in the production process and abide by relevant operating procedures.

4. conclusion

Through the manufacturing method introduced in this paper, we have successfully manufactured polyether defoamer, which provides an effective foam solution for chemical production. The manufacturing method is feasible and operable, and can provide reference for actual production.

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