Microfiltration of Polyoxyalkylene Metalworking Fluid Lubricant Additives Using Aluminum Oxide Membranes

Steven J. Skerlos; N. Rajagopalan; Richard E. DeVor; Shiv G. Kapoor; V. Don Angspatt

doi:10.1115/1.1392993

Journal of Manufacturing Science and Engineering | Volume 123 | Issue 4 | TECHNICAL PAPERS

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TECHNICAL PAPERS

Microfiltration of Polyoxyalkylene Metalworking Fluid Lubricant Additives Using Aluminum Oxide Membranes

Steven J. Skerlos, Graduate Research Assistant, N. Rajagopalan, Senior Research Engineer, Richard E. DeVor, Professor and Fellow ASME, Shiv G. Kapoor, Professor and Fellow ASME and V. Don Angspatt, Director of Research and Development

[+] Author and Article Information

Steven J. Skerlos, Richard E. DeVor, Shiv G. Kapoor

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801

N. Rajagopalan

Illinois Waste Management and Research Center, University of Illinois at Urbana-Champaign Urbana, IL 61801

V. Don Angspatt

IRMCO Advanced Lubricant Technologies, Evanston, IL 48109

J. Manuf. Sci. Eng 123(4), 692-699 (Nov 01, 2000) (8 pages) doi:10.1115/1.1392993 History: Received March 01, 2000; Revised November 01, 2000

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Figures

Flux of tetrasodium EDTA (10⁻² M) and deionized water at pH of 5.5 and 10.5 after membrane exposure to anionic polyglycol, cleaning at 45°C, and rinsing with deionized water

View Large | Save Figure | Download Slide (.ppt)

FE-ESEM image of membrane surface with anionic residual (a) at low pH (b) at elevated pH. Imaging conditions were identical with respect to working distance, magnification, beam voltage and size, and vacuum level.

View Large | Save Figure | Download Slide (.ppt)

Normalized flux of selected salts at 10⁻² M adjusted to pH=10.5 after membrane exposure to anionic polyglycol, cleaning, and rinsing. Data are normalized to water flux adjusted to pH=10.5 (approximately 800 LMH).

View Large | Save Figure | Download Slide (.ppt)

Conceptual illustration of copolymer swelling at elevated pH

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Normalized flux of ethylene oxide/propylene oxide block copolymers in 0.25 percent solution at pH=10.5. Various salts added to copolymers after fourth flux measurement.

View Large | Save Figure | Download Slide (.ppt)

Normalized flux of ethylene oxide/propylene oxide block copolymers in 0.25 percent solution at pH=5.5. Various salts added to copolymers after fourth measurement.

View Large | Save Figure | Download Slide (.ppt)

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Skerlos SJ, Rajagopalan NN, DeVor RE, Kapoor SG, Angspatt V. Microfiltration of Polyoxyalkylene Metalworking Fluid Lubricant Additives Using Aluminum Oxide Membranes. ASME. J. Manuf. Sci. Eng. 2000;123(4):692-699. doi:10.1115/1.1392993.

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Microfiltration of Polyoxyalkylene Metalworking Fluid Lubricant Additives Using Aluminum Oxide Membranes

References

Figures

Flux of tetrasodium EDTA (10⁻² M) and deionized water at pH of 5.5 and 10.5 after membrane exposure to anionic polyglycol, cleaning at 45°C, and rinsing with deionized water

FE-ESEM image of membrane surface with anionic residual (a) at low pH (b) at elevated pH. Imaging conditions were identical with respect to working distance, magnification, beam voltage and size, and vacuum level.

Normalized flux of selected salts at 10⁻² M adjusted to pH=10.5 after membrane exposure to anionic polyglycol, cleaning, and rinsing. Data are normalized to water flux adjusted to pH=10.5 (approximately 800 LMH).

Conceptual illustration of copolymer swelling at elevated pH

Normalized flux of ethylene oxide/propylene oxide block copolymers in 0.25 percent solution at pH=10.5. Various salts added to copolymers after fourth flux measurement.

Normalized flux of ethylene oxide/propylene oxide block copolymers in 0.25 percent solution at pH=5.5. Various salts added to copolymers after fourth measurement.

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Microfiltration of Polyoxyalkylene Metalworking Fluid Lubricant Additives Using Aluminum Oxide Membranes

References

Figures

Flux of tetrasodium EDTA (10−2 M) and deionized water at pH of 5.5 and 10.5 after membrane exposure to anionic polyglycol, cleaning at 45°C, and rinsing with deionized water

FE-ESEM image of membrane surface with anionic residual (a) at low pH (b) at elevated pH. Imaging conditions were identical with respect to working distance, magnification, beam voltage and size, and vacuum level.

Normalized flux of selected salts at 10−2 M adjusted to pH=10.5 after membrane exposure to anionic polyglycol, cleaning, and rinsing. Data are normalized to water flux adjusted to pH=10.5 (approximately 800 LMH).

Conceptual illustration of copolymer swelling at elevated pH

Normalized flux of ethylene oxide/propylene oxide block copolymers in 0.25 percent solution at pH=10.5. Various salts added to copolymers after fourth flux measurement.

Normalized flux of ethylene oxide/propylene oxide block copolymers in 0.25 percent solution at pH=5.5. Various salts added to copolymers after fourth measurement.

Tables

Errata

Discussions

Related Content

Journals

Conference Proceedings

eBooks

Flux of tetrasodium EDTA (10⁻² M) and deionized water at pH of 5.5 and 10.5 after membrane exposure to anionic polyglycol, cleaning at 45°C, and rinsing with deionized water

Normalized flux of selected salts at 10⁻² M adjusted to pH=10.5 after membrane exposure to anionic polyglycol, cleaning, and rinsing. Data are normalized to water flux adjusted to pH=10.5 (approximately 800 LMH).