Discuss the production process of 2,6-diethylaniline

2,6-Methylethylaniline is an important intermediate for chloroamino acid herbicides, as well as a raw material for the synthesis of dyes and pharmaceuticals. Production process: Currently, in China, 2,6-methylethylaniline is mainly produced by using o-methylamine as a starting material and carrying out o-alkylation with ethylene. The specific process involves first using o-toluidine and metallic aluminum to prepare o-**aminoaluminum as an alkylation catalyst; then, adding this o-**aminoaluminum to o-**amine, introducing ethylene under high pressure, and carrying out the alkylation reaction at certain temperatures and pressures. The reaction is carried out in batches, and after it is complete, distillation is performed to obtain the product. It is recommended to adopt the production technology from the Swiss company Lonza; this allows one set of equipment to be used for producing two different products. It is possible to produce 2,6-methylethylaniline, and by adjusting the process conditions and certain raw materials, it is also possible to produce 2,6-diethylaniline, which is in demand in both domestic and international markets. Production scale, main raw materials; technology introduced: 3,000 tons per year ； If it is difficult to introduce such technology, the technology developed by Shenyang Research Institute of Chemical Industry can be considered, with a production scale of 2,000 tons per year. Main ingredient: o-**amine ； Ethylene ； Metallic aluminum (used in the production of 2,6-diethylaniline, with ethylene and aniline as raw materials); environmental issues. During the production process of this facility, a small amount of hydrogen is generated, which can be collected in a moisture tank for use as fuel or released into the atmosphere. As a result, the amount of waste generated during production is very low, and after proper treatment, it meets the emission standards.

Discussion on the production process of 2,6-diethylaniline is welcome

DEA, a batch reactor process that involves two main reactions: catalyst preparation and the reaction itself. Hydrogen is generated during catalyst preparation; textbooks state that diethylaluminum is used for this purpose, and it yields high results. Aluminum is generally used as well. I hope everyone will raise any questions they have for discussion.