Co-production of phenol, acetone, α-methylstyrene and propylene oxide, and catalyst therefor
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United States of America Patent
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Jan 10, 2006
Grant Date -
Jun 17, 2004
app pub date -
Dec 16, 2002
filing date -
Dec 16, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process is disclosed for producing α-methylstyrene, acetone, and phenol wherein the amount of α-methylstyrene produced may be controlled by selectively converting a portion of the cumene hydroperoxide to dimethyl phenyl carbinol, the hydrated form of α-methylstyrene. The dimethyl phenyl carbinol thus produced will lead to increased production of α-methylstyrene upon dehydration in the acid cleavage unit of the phenol plant. By controlling the fraction of the cumene hydroperoxide reduced to dimethyl phenyl carbinol, the amount of α-methylstyrene produced in the plant can be continuously set to meet the demand of the market for α-methylstyrene. Also disclosed is a non-acidic catalyst for reduction of cumene hydroperoxide.
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