Membrane Dispersion Microstructure Reactor Can Control Preparation of Nanoparticles
Gantry Robot,Gantry Robot Arm,Truss Manipulator,Gantry System Cartesian Robot Qingdao Jiujin Machinery Co., Ltd , https://www.nbjiuinmachinery.com
The large-scale controllable preparation of nanoparticles by micro-structured reactors is a cross-cutting field between chemical engineering and nanoscience, and it is the cutting-edge direction of the discipline of chemical engineering. Nanoparticle preparation is a very complex transfer reaction process. If the reactor cannot achieve homogeneous mixing of the reaction system in a very short time, nanoparticle products will have the problem of wide particle size distribution and unstable quality. In this project, the principle of shortening the mixing time can be shortened according to the mixing scale, combined with the membrane dispersion technology and the thin layer shearing technology in the microchannel, a new type of contact at micrometer scale and uniform mixing in milliseconds is proposed and developed. The membrane disperses the microstructured reactor and uses it for the controlled preparation of nanoparticles.
Nano-particles such as calcium carbonate, barium sulfate, titanium oxide, and zirconium oxide were successfully prepared in this project, demonstrating that this technology is universal; it reveals the mechanism and laws of generation of micron droplets and bubbles in micro-reactors; Various means such as CFD simulations explored the fundamental reason for the highly uniform macroscopic and microscopic mixing of the new reactor in milliseconds; the use of multiple parameters modulates the size of the nanoparticles; and the establishment of new reactor nucleation of nanoparticles. A theoretical model for growth and agglomeration; a method for amplifying a membrane-dispersed microstructure reactor was proposed. These research results enriched the microscale transfer theory, developed a new micro-structured reactor, and promoted the integration of micro-chemical systems and nanomaterials.