Environmentally friendly process for the separation, condensation and recovery of propellant gas from foam materials and other materials suitable for the process

摘要

PCT No. PCT/DK90/00213 Sec. 371 Date Feb. 12, 1992 Sec. 102(e) Date Feb. 12, 1992 PCT Filed Aug. 17, 1990 PCT Pub. No. WO91/02638 PCT Pub. Date Mar. 7, 1991.A method for removing, condensing and collecting propellants, e.g. chlorofluoro-carbons (CFCs) in an environmentally friendly manner from foam materials, e.g. insulant materials from old (discarded) refrigerators, district heating tubes and other materials for which the method is suitable.