Supercritical carbon dioxide extraction of gel-derived polymer foams

Technical Report · Mon Jun 01 04:00:00 EDT 1992

OSTI ID:7282552

Russick, E M; Aubert, J H

Supercritical fluid technology has been used in industry for the extraction and separation of materials in a number of applications such as food preparation and petroleum processing. Gel-derived microcellular polymer foam technology, developed at Sandia, requires the extraction of organic solvents from thermally-induced phase separated gels to yield microcellular foams. We have applied supercritical fluid extraction technology to these specialized materials by using supercritical carbon dioxide to extract a variety of organic solvents from gels to produce foams. Our supercritical extraction process will be described, as well as high pressure equipment that is used to perform the extractions. The results of gel extraction trails and qualitative supercritical carbon dioxide/solvent miscibility experiments will also be presented. We plan to pursue other related areas in this field, including supercritical fluid cleaning, quantitative solubility studies, and supercritical fluid chromatography.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7282552
• Report Number(s): SAND-92-1122; ON: DE92017284
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
DISPERSIONS
EXTRACTION
FABRICATION
FLUIDS
FOAMS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SOLVENTS
OXIDES
OXYGEN COMPOUNDS
PLASTIC FOAMS
POLYMERS
SEPARATION PROCESSES
SOLVENTS
SUPERCRITICAL STATE