Crystal growth in solution under static conditions

摘要

A method for growing crystals in solution is suitable for the rapid, controlled and effective preparation of crystals of large dimensions from a solution supersaturated with a compound. The crystal growth is carried out under static conditions. To do this: the growth is performed in a crystallization chamber kept at a constant temperature T_c, which chamber is in fluid communication with a saturation chamber at a temperature T_s, similarly constant and different from T_c, with solubility of the compound at the temperature T_s greater than the solubility of the compound at the temperature T_c. A continuous circulation of the solution between the crystallization and saturation chambers is established, thus maintaining a constant supersaturation rate within the crystallization chamber. Furthermore, the circulating solution is subjected to a treatment for eliminating and inhibiting the formation of aggregates, enabling the nucleation of parasitic crystallites to be inhibited.