Distillation: Processes, Separatory Patents (Class 203)
With measuring, testing or inspecting (Class 203/1)
Including purging of the system (Class 203/4)
Separating isotopes or tautomers (Class 203/5)
Addition of material to distilland to inhibit or prevent reaction or to stabilize (Class 203/6)
Water purification only (Class 203/10)
Distilling to separate or remove only water (Class 203/12)
Including defoaming or inhibiting foam (Class 203/20)
And recovering heat by indirect heat exchange (Class 203/21)
With chemical reaction (Class 203/28)
With disparate physical separation (Class 203/39)
Convective distillation with normally gaseous medium, e.g., air (Class 203/49)
Adding material to distilland except water or steam per se (Class 203/50)
Plural distillations performed on same material (Class 203/71)
Distillation in apparatus or element of specific material (Class 203/86)
With fractional condensation of vapor outside still (Class 203/87)
Flash vaporization of distilland (Class 203/88)
Filming of distilland for vaporization (Class 203/89)
Spraying of distilland into vaporization zone (Class 203/90)
Vaporization zone under positive pressure or vacuum (Class 203/91)
Including addition of water or steam (Class 203/95)
And returning product of distillation step to distillation zone (Class 203/98)
Miscellaneous separatory (Class 203/99)

Cross-Reference Art Collections

Particular type of heating (Class 203/100)

Foreign Patent Art Collections

Class-related foreign documents (Class 203/FOR000)

Digests

Solar still (Class 203/DIG1)
Laboratory distillation (Class 203/DIG2)
Acrylonitrile (Class 203/DIG3)
Heat pump (Class 203/DIG4)
Human waste (Class 203/DIG5)
Reactor-distillation (Class 203/DIG6)
Start up or shut down (Class 203/DIG7)
Waste heat (Class 203/DIG8)
Plural feed (Class 203/DIG9)
Vinyl acetate (Class 203/DIG10)
Batch distillation (Class 203/DIG11)
Spirits (Class 203/DIG13)
Ejector-eductor (Class 203/DIG14)
Combination (Class 203/DIG16)
Saline water conversion (Class 203/DIG17)
Control (Class 203/DIG18)
Sidestream (Class 203/DIG19)
Power plant (Class 203/DIG20)
Acrylic acid or ester (Class 203/DIG21)
Accessories (Class 203/DIG22)
Methanol (Class 203/DIG23)
Mobile, marine distiller (Class 203/DIG24)
Non-distilling bottoms treatment (Class 203/DIG25)