Summary report for supercritical carbon dioxide extraction and carbonization of resorcinol-formaldehyde (RF) foams

Technical Report · Mon Mar 01 04:00:00 EST 1993

OSTI ID:10170342

Simandl, R F; Robinson, D N; Brown, J D

Emulsion-derived resorcinol-formaldehyde (RF) foams supplied by Sandia National Laboratories-California (SNL-California), have been successfully extracted at the Oak Ridge Y-12 Plant using supercritical carbon dioxide. One half of the resulting foams have been carbonized. Careful study of the extraction process has yielded a predictive model for supercritical extraction of thin RF foams and has resulted in the optimization of the extraction process. Extraction times and costs have been minimized. After the initial solvent exchange step, solvents were supercritically extracted from the RF gels in < 24 h at a cost of < $0.01 of CO{sub 2} per gram of solvent extracted.

• Research Organization: Oak Ridge Y-12 Plant, TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OS21400
• OSTI ID: 10170342
• Report Number(s): Y--2461; ON: DE93016924
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105
400201
ACETONE
BULK DENSITY
CARBON DIOXIDE
CARBONIZATION
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
COMPUTER PROGRAM DOCUMENTATION
COST
CROSS-LINKING
EXPERIMENTAL DATA
FLOW RATE
FOAMS
FORMALDEHYDE
GAS FLOW
INTERLABORATORY COMPARISONS
MATHEMATICAL MODELS
METHANOL
OPTIMIZATION
RESORCINOL
SANDIA LABORATORIES
SEPARATION PROCEDURES
SHRINKAGE
SUPERCRITICAL GAS EXTRACTION
SWELLING
TIME DEPENDENCE
Y-12 PLANT