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    • 3. 发明申请
    • CRYSTAL GROWTH IN A SOLUTION IN STATIONARY CONDITIONS
    • 在稳定条件下的解决方案中的晶体生长
    • WO2008081103A3
    • 2008-09-12
    • PCT/FR2007001980
    • 2007-12-03
    • CENTRE NAT RECH SCIENTIBANEZ ALAINZACCARO JULIEN
    • IBANEZ ALAINZACCARO JULIEN
    • C30B7/00C30B7/08C30B29/14C30B35/00
    • C30B7/08C30B29/14C30B35/00Y10T117/1024
    • The present invention relates to a method for crystal growth in a solution adapted for the fast, controlled and efficient preparation of large-dimension crystals (1) from a supersaturated solution into a compound. The crystal growth is carried out in stationary conditions. In order to do so, the growth is carried out in a crystallisation chamber (10) maintained at a constant temperature Tc and in fluid communication with a saturation chamber (20) at a temperature Ts that is also constant but different from Tc, the compound solubility at the Ts temperature being higher than compound solubility at the temperature Tc. A continuous solution circulation is established between the crystallisation (10) and saturation (20) chambers, thus maintaining a constant supersaturation ratio in the crystallisation chamber (10). The circulating solution is further submitted to a treatment for removing and inhibiting (40) the formation of aggregates, thus inhibiting the nucleation of parasitic crystallites.
    • 本发明涉及一种适用于快速,有控制,高效地制备大尺寸晶体(1)的过饱和溶液中的晶体生长方法。 晶体生长在稳定条件下进行。 为了这样做,生长在维持在恒定温度Tc的结晶室(10)中进行,并且在饱和室(20)中以恒定但不同于Tc的温度Ts流体连通,化合物 在Ts温度下的溶解度高于在温度Tc下的化合物溶解度。 在结晶(10)和饱和(20)室之间建立连续的溶液循环,从而在结晶室(10)中保持恒定的过饱和比。 循环溶液进一步进行去除和抑制(40)聚集体形成的处理,从而抑制寄生微晶的成核。