What is the reason for different degrees of pantothenic acid in polyether amine?

2020-07-17 15:29:00

Polyether amine in the use, sometimes we will find that it has different degrees of pantothenic acid, what is the reason for this?

1 equipment leakage, mainly the reactor, two condensers, etc.

2. Air leakage of equipment, resulting in insufficient vacuum. The removed water in the kettle is cooled by the condenser and then falls back into the kettle.

The working efficiency of vacuum pump is not enough. In the later stage of synthesis of polyether amine, the reaction rate of synthesis is greatly reduced due to the insufficient working efficiency of vacuum pump under the condition of low acid value.

4 others, such as false pantothenic acid (not true pantothenic acid), such as invalid temperature, vacuum degree and other parameters (or the temperature meter, vacuum pressure gauge, etc., which mislead the production control), serious deviation in control, serious alcohol leakage in a certain stage, insufficient purity of raw materials, inaccurate feed metering, etc.

Polyether amine in the use, it is inevitable that there will be improper operation, this is due to our lack of understanding of it, then the direct way to solve this problem is to integrate its basic content, so that it will be easier in case of emergency. Next, we will briefly introduce its emergency handling matters I hope you will know how to deal with these situations in the future.

1. Do not come into direct contact with the air due to its hygroscopicity.

2. Polyether amine should avoid open fire, should avoid heating in the air for a long time, especially the insulation materials, clothing, etc. often have natural fire, should pay attention to.

3. When adhering to the skin, wash the eyes with plenty of water, and wash the eyes with water for more than 15 minutes when entering the eyes.

4. When polyether amine overflows, it should be removed with sawdust, yellow sand, cloth and other permeable substances, and then washed away with a large amount of water.