5534136 Method and apparatus for the solvent extraction of oil from bitumen containing tar sand: Rosenbloom William, Westport, CT, United States

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 263 KB
• Volume: 4
• Category: Article
• ISSN: 0959-6526
• DOI: 10.1016/s0959-6526(97)88864-6

✦ Synopsis

STATES assigned to Air Liquide America Corporation An apparatus for producing and injecting a sterile cryogenic liquid (for example into a container of food) is provided, as well as a method of use of same. The apparatus includes at least one purge-swept cryogenic liquid filter, the filter including filter media having the capability to effectively sterilize cryogenic liquids, the filter media positioned within a housing to accept non-sterile cryogenic liquid and produce sterile cryogenic liquid, and to recycle an amount of the non-sterile cryogenic liquid. The apparatus further includes at least one sterile cryogenic liquid accumulator, the sterile cryogenic liquid accumulator having a sterile cryogenic liquid outlet for dispensing sterile cryogenic liquid, the sterile cryogenic liquid outlet having a passageway for a sterile cryogenic gas, whereby the sterile cryogenic gas prevents contact of the sterile cryogenic liquid with a non-sterile atmosphere via pressurization and purging during dispensing of same.

5533680 PROCESS TO GRIND THERMOSET OR THERMOPLASTIC MATERIALS

La&one Bobby D, Vicksburg, MS, UNITED STATES assigned to U S Rubber Reclaiming Inc Dry ice snow is used to embrittle thermoset or thermoplastic materials for further treatment. The dry ice snow is formed from carbon dioxide gas directly obtained from naturally occurring carbon dioxide gas wells.