Process for preparing sec-butyl alcohol and sec-butyl tert-butyl ether
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United States of America Patent
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Oct 4, 1983
Grant Date -
N/A
app pub date -
Apr 28, 1982
filing date -
Apr 28, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for producing sec-butanol and sec-butyl tert-butyl ether from butane comprises: (a) partially isomerizing n-butane to produce a mixture of n-butane and isobutane; (b) catalytically dehydrogenating said butanes to produce a mixture containing at least butene-1, isobutene and butadiene; (c) selectively hydrogenating butadiene and converting butene-1 to butene-2; (d) etherifying isobutene contained in the dehydrogenation reaction mixture with sec-butanol to form a mixture of sec-butyl tert-butyl ether and unreacted hydrocarbons; (e) converting butene-2 from the unreacted hydrocarbon mixture by hydration to produce sec-butanol; (f) recycling said sec-butanol to the etherification step; recovering said sec-butyl tert-butyl ether.
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