C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 255/03 (2006.01) C07C 253/34 (2006.01)
Patent
CA 2136235
Acetonitrile is purified by treatment with ozone. After ozone treatment is ended, acetonitrile is passed through packed columns of molecular sieve, activated alumina and charcoal or graphitized carbon; the process results in virtually pure acetonitrile obtained at an efficiency unachievable by prior art processes.
Greenough R. Clive
Himes Barry W.
Cryodyne Technologies Inc.
Smart & Biggar
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