A kind of technology of continuous production polyisobutylene amine

Abstract

The invention discloses a process for continuously producing polyisobutylene amine, which comprises the following steps: mixing active polyisobutene with a solvent and a catalyst to form an epoxidation raw material, sending the epoxidation raw material and hydrogen peroxide solution into No. 1 microtube reaction The epoxidation reaction is carried out in the reactor, and the crude product is obtained through continuous rectification to obtain the epoxidation product, and the n-butanol solution and ethylenediamine of the epoxidation product are simultaneously flowed into No. 2 microtubular reactor for amination reaction, and the crude product It is directly sent to the crude product tank to obtain the final product after distillation. The benefits of the present invention are: (1) adopting continuous process, the degree of automation is greatly improved, so the production efficiency is improved; (2) adopting the microtubular reactor not only effectively improves the conversion rate and selectivity of the process, but also reduces Reduce raw material consumption, reduce production costs, and significantly reduce a series of side reactions caused by overheating, improve product quality and performance, and also improve production safety.

Description

technical field [0001] The invention relates to a process for producing polyisobutene amine, in particular to a process for continuously producing polyisobutene amine, which belongs to the technical field of chemical industry. Background technique [0002] Polyisobutylamine is a widely used excellent gasoline detergent and dispersant, and is the main raw material for the production of the fourth-generation gasoline detergent. The gasoline detergent prepared with it can effectively control surface deposits on low-temperature and high-temperature parts of gasoline engines It can economically and quickly improve the quality of gasoline, reduce the emission of automobile pollutants, and has multiple functions such as cleaning, dispersing, demulsification and antirust, which can effectively promote the full combustion of colloids in oil products and reduce exhaust emissions. , Purify the ambient air. [0003] The patent US4832702 adopts catalytic carbonylation reaction to conver...

AI Technical Summary

Problems solved by technology

[0008] 1. The process is complicated, the technical requirements of the process equipment are high, the reaction time is long, the production efficiency is low, and the material consumption and energy consumption are high

[0009] 2. The technical control of the process is difficult, the product quality repeatability between different batches is poor, and it is difficult to scale up the product step by step

[0010] 3. In the above-mentioned patents, the operation process of flask or batch kettle is generally adopted, and hydrogen peroxide is used for epoxidation reaction in the reactor, which has problems such as easy decomposition of raw materials, difficult control of the reaction process and poor safety.

[0011] 4. The amination reaction is carried out in the tank reactor, and there are problems such as high pressure and violent heat release.