Distillation: processes – separatory – With measuring – testing or inspecting
Patent
1998-11-06
2000-12-12
Manoharan, Virginia
Distillation: processes, separatory
With measuring, testing or inspecting
202160, 202170, 202205, 203 2, 203 6, 203 57, 203 69, 203100, 203 91, 549509, B01D 334, B01D 342, C07D30708
Patent
active
061593451
ABSTRACT:
A method and apparatus for recycling and recovering potentially explosive solvents includes providing a contaminated solvent to a distillation tank, vaporizing the solvent in the distillation tank, thereby producing solvent vapor, condensing the solvent vapor, and adding a free radical scavenger substance to the distillation tank during the heating step. The vapor is then condensed and collected in a clean solvent tank where additional free radical scavenger substance is added to the clean solvent tank. Preferably, contaminated solvent is introduced into the solvent recovery system by providing contaminated solvent into contaminated solvent tank which is connected to the distillation tank, and an oxygen displacer substance is provided to the contaminated solvent tank and the clean solvent tank so as to minimize the amount of free oxygen in the tanks.
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EPA Form 8700-22 (Rev. Nov. 1988), North Carolina Hazardous Waste Manifest Form.
Picture of Solvent Recovery Building.
Donnelly John C.
Frick Gregory A.
Grune Guerry L.
Marsh Kenneth L.
Manoharan Virginia
Mitsubishi Chemical America, Inc.
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