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Syringe Pump Application Note AN1 Why Teledyne Isco Pumps? Teledyne Isco syringe pumps are well suited for use with CO2 and provide the best in accuracy and reli- ability. Flow rate accuracy is ± 0.5% or better, and flows are pulseless. Pulseless flow means fluid pressure and density are constant, without changes in solvating prop- erties. Pumps can be operated in either constant flow or constant pressure. For continuous operation, our dual pump systems deliver fluid in unattended operation. Pumps can be operated as stand-alone or via external control. Accessories, such as cooling/heating jackets, are available to maintain proper fluid temperature. Recommendations for Teledyne Isco Pumps Typically, chemists and chemical engineers who work with supercritical fluids choose to work with the Model 260D pump. Sometimes they purchase a Model 100DX in order to achieve higher pressure and/or more accurate flows. Single pumps are most often used in batch applications while dual pumps are used in contin- uous flow. Table 1: Commonly Recommended Supercritical Fluid Pumps Model Wetted Materials for CO2 Cooling/Heating Jacket External Control Option Single Pump 260D Standard Continuous Flow Pump A260 Standard Table 2: Other Pump Models Available Available Available 0.001 - 107 0 - 7,500 Labview Driver Labview Driver 100DM 0.00001 - 30 0 - 10,000 1000D Flow Range (ml/min) 0.100 - 408 Pressure Range (psi) 0 - 2,000 500D 0.001 - 204 0 - 3,750 260D 100DX 0.00001 - 60 0 - 10,000 65D 0.00001 - 25 0 - 20,000 References: 1. Eric J. Beckman “Using CO2 to Produce Chemical products Sustain- ably”, Environmental Science & Technology (1 September 2002) 347A. 2. J. Calvin Giddings “High Pressure Gas Chromatography of Nonvola- tile Species”, Science 162 (4 October 1968) 67. 3. A.I. Cooper, et. al. “Extraction of a hydrophilic compound from water into liquid CO2 using dendritic surfactants”, Nature 389 (25 Septem- ber 1997) 368. 4. J.B. McClain, et. al. “Design of Nonionic Surfactants for Supercriti- cal Carbon Dioxide”, Science 274 (20 December 1996) 2049. 5. Stephen K. Ritter “Microchips’ Heavy Burden”, Chemical & Engi- neering News (23 December 2002) 25. 6. David Filmore “The Greening of Catalysis”, Today’s Chemist at Work (November 2002) 29. 7. J.M. DeSimone, et. al. “Synthesis of Fluoropolymers in Superdcriti- cal Carbon Dioxide”, Science 257 (14 August 1992) 945. Teledyne Isco P.O. Box 82531, Lincoln, Nebraska, 68501 USA Toll-free: (800) 228-4373 • Phone: (402) 464-0231 • Fax: (402) 465-3091 E-mail: IscoInfo@teledyne.com Last modified September 28, 2012 Teledyne Isco is continually improving its products and reserves the right to change product specifications, replacement parts, schematics, and instructions without notice.PDF Image | Supercritical Fluid Applications in Manufacturing and Materials Production
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