Solvent extraction apparatus
Solvent recovery apparatus
Solvent recovery apparatus
Solvent recovery apparatus
Solvent recovery apparatus and method
Solvent recycling system
Solvent reprocessing system
Sparged air distilled water recovery system
Spent solvent purification apparatus
Spinning band
Spinning band
Spinning band fractionating column
Splash shield for distillation unit
Split hub wheel apparatus
Static mixer retorting of oil shale
Steam chamber for a water distiller with contamination preventio
Steam distillation apparatus
Steam distillation apparatus convertible to two separate modes o
Steam generator in a multi-stage distilling apparatus
Still