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[Chemical Knowledge]：Production and manufacturing method and process flow of isophorone diamine

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Isophorone diamine (IPDA) is an important chemical raw material, which is widely used in polyurethane, epoxy resin, polyamide and other fields. The following is the manufacturing method of isophorone diamine, which is divided into two stages: the first stage is to prepare isophorone, and the second stage is to convert isophorone diamine into isophorone diamine by amination reaction. The first stage of

: preparation of isophorone

1. raw material preparation
The main raw materials for the preparation of isophorone are acetone and hydrogen. First, it is necessary to mix acetone and hydrogen in a certain ratio and add a catalyst.

2. reaction process
under the action of catalyst, acetone and hydrogen addition reaction, the formation of isophorone. This reaction needs to be carried out at a certain temperature and pressure to ensure the smooth progress of the reaction.

3. Product separation and purification
After the reaction is completed, the product needs to be separated and purified to obtain isophorone with higher purity. The isophorone is generally separated from the reaction mixture by distillation and subjected to further purification.

second stage: preparation of isophorone diamine

1. raw material preparation
preparation of isophorone diamine raw materials are isophorone and ammonia. Isophorone and ammonia are mixed in a certain ratio and a catalyst is added.

2. reaction process
under the action of catalyst, isophorone and ammonia ammoniation reaction, generate isophorone diamine. This reaction also needs to be carried out at a certain temperature and pressure to ensure the smooth progress of the reaction.

3. Product Separation and Purification
After the reaction is completed, the product needs to be separated and purified to obtain isophorone diamine with high purity. The isophoronediamine is typically separated from the reaction mixture by distillation and crystallization and subjected to further purification.

The above is the manufacturing method of isophorone diamine. It should be noted that in the entire manufacturing process, the reaction conditions and the proportion of raw materials need to be strictly controlled to ensure the quality and purity of the product. At the same time, because isophorone diamine is a harmful chemical, it is necessary to strengthen safety protection measures in the production process to ensure the health of production personnel and environmental safety.

In short, the manufacturing method of isophorone diamine needs to go through multiple steps and links, and the reaction conditions and raw material ratio need to be strictly controlled to ensure the quality and purity of the product. At the same time, it is necessary to strengthen safety protection measures to ensure the health of production personnel and environmental safety.

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