DEVELOPMENT OF FLOW/STERIC FIELD-FLOW FRACTIONATION AS A ROUTINE PROCESS CONTROL METHOD

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: N/A
Agency Tracking Number: 7504
Amount: $41,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1988
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Fffractionation Inc
2381 South 2700 West Ste D, Salt Lake City, UT, 84119
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DR BHAJENDRA N BARMAN
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
FLOW/STERIC FIELD-FLOW FRACTIONATION (FLOW/STFFF) IS A RECENTLY DEVELOPED HIGH SPEED METHOD WITH EXTRAORDINARY ABILITIES TO SEPARATE PARTICULATE MATERIALS WITH DIAMETERS ROUGHLY IN THE 1-100 UM RANGE. THE OBJECT OF THIS PROPOSAL IS TO EXAMINE THE POTENTIAL OF CONVERTING THIS RESEARCH FINDING INTO A FAST AND RELIABLE PRACTICAL TOOL FOR INDUSTRIAL PROCESS CONTROL. THIS METHOD WILL BE STUDIED FOR ITS POSSIBLE ROUTINE APPLICATION TO SPHERICAL AS WELL ASIRREGULAR SHAPED PARTICLES OBTAINED AS PRODUCTS FROM FINE PARTICLE MANUFACTURING PROCESSES. IN FLOW/STFFF, PARTICLES ARE SUBJECTED TO A CROSSFLOW FIELD WHILE CARRIED ALONG BY A CARRIER LIQUID IN A RIBBON-LIKE THIN CHANNEL. SINCE PARTICLES ELUTE ON THE BASIS OF THEIR SIZES (AND INDEPENDENT OF THEIR DENSITIES), ONE CAN OBTAIN DIRECT INFORMATION ABOUT THE SIZE AND SIZE DISTRIBUTION FROM ELUTION PROFILES OR FRACTOGRAMS. AS OPPOSED TO EXISTING METHODS FOR ROUTINE PARTICLE SIZE ANALYSIS, THE PROPOSED METHOD SHOULD BE RELATIVELY SIMPLE AND COST EFFECTIVE AND YET POSSESSES ENORMOUS POTENTIAL FOR THE HIGH RESOLUTION ANALYSIS OF MANY SIMPLE AND COMPLEX PARTICULATE SYSTEMS. THE ANALYSIS TIME WITH THIS METHOD IS 1-5 MINUTES FOR A SAMPLE AND IS THUS SUITABLE FOR PROCESS CONTROL FEEDBACK.

* information listed above is at the time of submission.

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