Coaxial impinging-stream reactor and method for continuously preparing nanometer material

Abstract

The invention discloses a coaxial impinging-stream reactor and a method for continuously preparing a nanometer material. The coaxial impinging-stream reactor can be used for preparing the nanometer material through a liquid phase method. The main structure of the coaxial impinging-stream reactor comprises a reactor inner tube, a reactor outer tube, a feeding tube, a hot-water cyclic heat-preserving tank, etc., wherein the reactor inner tube and the reactor outer tube adopt a vertical design manner and maintain to be coaxial to form an annular microchannel reaction area; the reactor inner tube is uniformly provided with 6 rows of micropores along an axial direction, wherein each row of the micropores has a spacing of 12 mm; the reactor inner tube is uniformly provided with 5 micropores along a radial direction, wherein the diameters of the micropores are 0.5 mm; the bottom part of the reactor inner tube is sealed; an opening is arranged between the reactor inner tube and the reactor outer tube, so a product can flow out; and the product synthesis process and the material taking process can be simultaneously performed, so continuous preparation of the nanometer material is realized. The coaxial impinging-stream reactor provided by the invention can provide good reaction conditions for strengthening alternate heat and mass transfer processes, and has extremely great application potential in the aspect of promoting continuous preparation of the nanometer material through the liquid phase method.

Description

technical field [0001] The invention relates to the field of continuous preparation of nanomaterial equipment and preparation methods, in particular to a coaxial impingement flow reactor for continuous production of nanomaterials by liquid phase method and a method for continuous preparation of nanomaterials by liquid phase method. [0002] technical background [0003] At present, the study of nanomaterials has become one of the hotspots of current scientific research. It has broad application prospects in magnetic materials, electronic materials, optical materials, sensing, catalysis, sintering of high-density materials, and toughening of ceramics. The material market is gradually expanding and has produced huge economic benefits. The existing methods for preparing nanomaterials include gas-phase method, liquid-phase method and solid-phase method. Among them, impinging flow equipment has been widely used in the preparation of nanomaterials by liquid-phase method. The princi...

AI Technical Summary

Problems solved by technology

[0006] In order to improve the mixing rate and production efficiency of the two liquids, the present invention provides a coaxial impinging flow reactor. Its unique structural design overcomes the shortcoming of a single material impinging flow reaction channel, and its inner tube has multiple micropores. Make the reaction liquid generate multiple impact beams during the impact mixing and reaction process

Images