| 1/00 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) |
| 1/02 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) Evaporators with heating coils |
| 1/04 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) Evaporators with horizontal tubes |
| 1/06 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) Evaporators with vertical tubes |
| 1/08 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) Evaporators with vertical tubes with short tubes (B01D 1/12 takes precedence) |
| 1/10 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) Evaporators with vertical tubes with long tubes, e.g. Kestner evaporators (B01D 1/12 takes precedence) |
| 1/12 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) Evaporators with vertical tubes and forced circulation |
| 1/14 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) with heated gases or vapours in contact with the liquid |
| 1/16 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) by spraying (B01D 1/22 takes precedence) |
| 1/18 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) by spraying (B01D 1/22 takes precedence) to obtain dry solids (B01D 1/24 takes precedence) |
| 1/20 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) by spraying (B01D 1/22 takes precedence) Sprayers |
| 1/22 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) by bringing a thin layer of the liquid into contact with a heated surface |
| 1/24 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) by bringing a thin layer of the liquid into contact with a heated surface to obtain dry solids |
| 1/26 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) Multiple-effect evaporating |
| 1/28 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) with vapour compression |
| 1/30 | Evaporating (drying solid materials or objects by evaporating liquids therefrom F26B) Accessories for evaporators |
| 3/00 | Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping |
| 3/02 | Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in boilers or stills |
| 3/04 | Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping pipe stills |
| 3/06 | Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping Flash distillation |