Patent ID: 7147670

Claim:
A process for removing contaminants from one or more substrates that comprise contaminants, the process comprising steps of: (a) placing the one or more substrates in a rotatable cleaning unit; (b) placing the rotatable cleaning unit in a pressurizable vessel; (c) adding organic solvent to at least one of the vessel and the cleaning unit; (d) imparting movement of the cleaning unit under substantially non-pressurized conditions; (e) removing a first portion of the organic solvent from the vessel; (f) pressurizing the vessel; (g) adding pressurized fluid solvent to the vessel to form an organic solvent-pressurized fluid solvent mixture; (h) removing at least a portion of the mixture from the pressurized vessel; (i) depressurizing the vessel to form vaporized fluid solvent and substantially dry, clean one or more substrates; and (j) removing at least a portion of the dry, clean one or more substrates from the vessel; wherein: steps (a)-(b) occur in any order or substantially simultaneously.