Loading patent…
AssigneeSabic Innovative Plastics IP B.V.
InventorsMark E. Nelson, Arkady Samuilovich Dykman, Andrey Vladimirovich Zinenkov, Victor Vladimirovich Pinson, Ilja Nikolayevich Grebenshchikov
Estimating the term…
A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, comprises the steps of: a) distilling an amount of cumene from the cumene hydroperoxide mixture until the cumene mass % is 0 to 7 mass % relative to the total mass of the cumene hydroperoxide mixture, b) reacting the cumene hydroperoxide mixture with an acid catalyst form to a second mixture comprising phenol, acetone and dicumyl peroxide in a first stage, and c) decomposing the second mixture in a second stage to produce phenol and acetone, wherein an amount of phenol approximately equal to the amount of distilled from the cumene hydroperoxide mixture is added to the cumene hydroperoxide mixture before the reacting step b). The amount of hydroxyacetone is reduced, thereby, improving the quality of commercial-grade phenol and the products made from the phenol.
A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, the method comprising the steps of:
A method for producing phenol and acetone from a cumene hydroperoxide mixture in a multi-stage process at an elevated temperature, the method comprising the steps of:
A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, the method comprising the steps of:
Dependencies are inferred from the claim text.