Manufacturing of urea co-crystals by spiral gas–solid two-phase flow (S-GSF) based on spiral jet mills: a continuous, solvent-free, and scalable mechanochemical method

Abstract

A S-GSF method based on spiral jet mills for the continuous, solvent-free, and scalable mechanochemical preparation of four urea co-crystals for the first time.

Spiral gas–solid two-phase flow continuous mechanochemical synthesis of salophen complexes and catalytic thermal decomposition of ammonium perchlorate

“…We previously reported a gas–solid two-phase flow (GSF) technique as an alternative to conventional mechanochemical synthesis. 22 It is based on the principles of hydrodynamic theory, in which reactant particles are accelerated by a high-speed carrier gas to 300 m s −1 or higher. These particles convert their enormous mechanical energy into the activation energy required to initiate chemical reactions by hitting or colliding with a target reactant, thus achieving an efficient chemical reaction.…”