Continuous light chemical reaction apparatus, system and continuous preparation method of propellane carbonylation reaction

Abstract

The invention provides a continuous light chemical reaction apparatus, a system and a continuous preparation method of a propellane carbonylation reaction. The continuous light chemical reaction apparatus comprises a continuous reactor, an irradiation light source used for providing illumination to a continuous reactor for performing the continuous light chemical reaction, and a temperature control apparatus, the continuous reactor of the temperature control apparatus and the irradiation light source are positioned in the temperature control apparatus, by arranging the continuous reactor, the light chemical reaction can be continuously generated, the reaction raw materials are continuously introduced into the reactor, the reaction products are continuously discharged from the reactor, the continuous reaction can effectively improve the transmission efficiency of optical radiation in a reaction mixture, so that the reaction time is shortened, the reaction efficiency is increased, and side reaction is reduced. The batch reaction is stable, the temperature control operation is convenient, the continuous light chemical reaction apparatus is benefit for amplification of the light chemical reactions from a laboratory scale to a factory grade, and the amplification effect is smaller.

Description

technical field [0001] The invention relates to the field of photochemical reaction, in particular to a continuous photochemical reaction device, system and continuous preparation method for propeller alkane carbonylation reaction. Background technique [0002] In organic chemistry, propanes are a class of polycyclic hydrocarbon molecules. Its carbon backbone consists of three rings of carbon atoms that share an edge formed by a C-C covalent bond. The origin of the name of this type of compound is that its shape is similar to the propeller of an airplane, the three rings are the blades of the propeller, and the shared C-C bond is its shared shaft. [0003] Propellanes, especially small ring propane molecules, have high ring tension and are very unstable. Its shared C-C covalent bonds are easy to break open and polymerize to form very interesting structures. Based on this characteristic, this kind of molecule has received extensive attention. Taking advantage of the easy ...

AI Technical Summary

Problems solved by technology

It has the following obvious disadvantages: 1) Batch photochemical technology, the characteristics of light propagation in reactants is that as the reactor increases, the transmission efficiency of light radiation in the reaction mixture decreases rapidly, resulting in prolonged reaction time and side reactions. increase

2) For batch photochemical reactions, due to the special requirements of the reactor for materials, it is difficult to scale up from the laboratory scale to the factory level, and the amplification effect is obvious

3) The batch reactor belongs to the fully mixed flow reactor, and the generated products cannot be exported in time. In terms of chemical reaction kinetics, this will lead to poor selectivity of the main reaction, decreased yield, and poor repeatability of the reaction.

4) In the existing batch photochemical reaction technology, as the reactor gradually increases, the concentration gradient of the reaction mixture in the system will also increase, which is also the reason for the poor reaction selectivity and low yield

5) The existing batch photochemical technology has difficulty in heat exchange, which leads to an increased probability of side reactions

Long reaction time, many by-products, low yield, difficult temperature control

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