C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/637, 260/642
C07C 31/12 (2006.01) C07C 407/00 (2006.01) C07C 409/04 (2006.01)
Patent
CA 2019355
REMOVAL OF ACIDIC IMPURITIES FROM TERTIARY BUTYL HYDROPEROXIDE CONTAINING FEEDSTOCK (Docket No. 80,415-F) ABSTRACT OF THE DISCLOSURE Isobutane is thermally and/or catalytically reacted with molecular oxygen to provide an initial reaction product composed of unreacted isobutane, tertiary butyl hydroperox- ide, tertiary butyl alcohol and acidic impurities, including acetic acid and formic acid and the initial reaction product is treated with water (preferably in a counter-current extraction zone) in order to preferentially remove a sig- nificant portion of the acidic impurities and to provide a final feedstock from which unreacted isobutane may be removed for recycle. The resultant mixture composed sub- stantially exclusively of tertiary butyl hydroperoxide dissolved in tertiary butyl alcohol may be further processed for thermal and/or catalytic conversion of the tertiary butyl hydroperoxide to tertiary butyl alcohol or may be used as a feedstock for the catalytic reaction of the tertiary butyl hydroperoxide with an olefin such as propylene to form an epoxide such as propylene oxide and additional tertiary butyl alcohol.
Keating Kenneth P.
Sanderson John R.
Walton John M.
Huntsman Specialty Chemicals Corporation
Smart & Biggar
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