| 34 / | HD | DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS |
| 282 | DF | PROCESS {24} |
| 329 | DF | .~ With contacting of material treated with solid or liquid agent {5} |
| 330 | DF | .~.~ With regeneration or removal of treating agent {3} |
| 337 | | .~.~.~ Treating agent is a liquid {2} |
| 338 | DF | .~.~.~.~> With treatment of suspension or slurry |
| 339 | DF | .~.~.~.~> With treatment of solid material {3} |