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    • 3. 发明专利
    • AT330682T
    • 2006-07-15
    • AT02789588
    • 2002-11-12
    • 3M INNOVATIVE PROPERTIES CO
    • DAVIDSON ROBERT SANDERSON DANNY BGERTH RICHARD AHOLM DAVID R
    • B01D1/00B01D3/06B01D3/42B01J13/00
    • A process for evaporating a portion of a colloidal solution, said process including: a) passing a colloidal solution, said colloidal solution including particles in a liquid medium, wherein at least a portion of said liquid medium includes at least one volatile component, through one or more orifices into an evaporation zone that has at least one inner surface, wherein said colloidal solution does not substantially contact said at least one inner surface of said evaporation zone as said colloidal solution is passed through said evaporation zone; b) applying pressure in said evaporation zone that is lower than the vapor pressure of said colloidal solution as it is passed into said evaporation zone, allowing for flash evaporation of at least a portion of said at least one volatile component from said colloidal solution; c) adjusting the pressure in said evaporation zone to evaporate an amount of said at least one volatile component from said colloidal solution; and d) collecting the remaining colloidal solution from said evaporation zone.