Distillation: processes – separatory – With measuring – testing or inspecting
Patent
1997-05-29
1999-02-23
Warden, Robert
Distillation: processes, separatory
With measuring, testing or inspecting
422100, 422101, 422256, 73 6159, 203 87, 203DIG2, 202176, 202186, 2021856, 196 98, B01D 342, B01L 1100
Patent
active
058739807
ABSTRACT:
A solvent recovery system for an oil and grease test collects and condenses solvent vapors to recover solvent. A vessel having an inlet for sealingly receiving an outlet of a separatory funnel receives solvent from the separatory funnel. The solvent is filtered through a filter paper placed in a funnel integral with the vessel. The funnel has a lower tubular section protruding from the vessel. A vapor return tube, integral with the vessel, surrounds the tubular section providing an annular space between an inside wall of the vapor return tube and an outside wall of the tubular section. Filtrate flows downward through the funnel tubular section into an evaporation flask, where the solvent is heated and evaporated leaving an oil and grease residue. Solvent vapors flow upward through the annular space within the vapor return tube into the vessel. A condenser, integral with the vessel, receives and condenses the vapors forming a condensate that is collected in a solvent recovery flask.
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Standard Methods for the Examination of Wastewater, Sixteenth Edition, prepared and published by American Public Health Association, American Water Works Association and Water Pollution Control Federation, pp. 496-501. No Date Available.
Standard Methods for the Examination of Wastewater, Eighteenth Edition, Oil and Grease 5520B, pp. 5-24 to 5-27. No Date Available.
Oil and Grease, Total, Recoverable, Method 413.1, (Gravimetric, Separatory Funnel Extraction), EPA Procedures Manual in EDC Central Lab, Issued 1974, Editorial revision 1978, pp. 413.1-1 to 413.1-3.
Method 1664, N-Hexane Extractable Material (HEM) and Silica Gel Treated N-Hexane Extractable Material (SGT-HEM) by Extraction and Gravimetry (Oil and Grease and Total Petroleum Hydrocarbons), U.S. EPA Office of Water, 21 pages. No Date Available.
General catalog of Scientific Glass & Instruments, Inc. of Houston, Texas LE-74, 1974, front cover and pp. 4, 9, 53, 58,60, 61, 65, 78, Distillation Apparatus cover sheet, 92, 98, 102, Evaporative and Extraction Apparatus cover sheet, 111, 112, 114, 115, and back cover page. No Date Available.
The Complete Laboratory Glassware Catalog 1994-95, Baxter Scientific Products, Baxter Healthcare Corporation 1994, title page, and pp. 4, 14, 407, 411, 413,414, 430, 504, 505, 525, 528, 530, 541, 545, 560, 580, 600, 627, 667 and 756.
Portis Gerald L.
Yardley John M.
Young Gerald P.
Houston Industries Incorporated
Moazzam Fariborz
Warden Robert
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