| | | |
| 293R | PHYSICAL PROCESSES |
| 294R | .Sublimation |
| 294S | ..Sulfur |
| 295R | .Crystallization |
| 296 | ..Selective |
| 297 | ...With extraction |
| 298 | ...From natural sources |
| 299 | ..With extraction |
| 300 | ..With added material |
| 301 | ...Seed |
| 302R | ..Alkali metal and ammonium compounds |
| 303 | ...Common salt |
| 302A | ...Ammonium compounds |
| 302T | ...Sodium compounds |
| 304 | ..Alkaline earth metal and magnesium compounds |
| 305R | ..Heavy metal or aluminum compounds |
| 305A | ...Aluminum compounds |
| 305F | ...Iron compounds |
| 305RE | ...Rare earth compounds |
| 295G | ..Gel |
| 295S | ..Solar |
| 306 | .Concentration of liquids in liquids |
| 307 | ..With direct heating |
| 308R | .Melting out |
| 308S | ..Sulfur |
| 313R | .Agglomerating |
| 314 | ..Carbon |
| 313AS | ..Silicate |
| 313FB | ..Fluidized bed |
| 313P | ..Pan agglomeration |
| 293S | .Sulfur |
| 293A | .Flaking, spraying |