Solid acid catalyst and process for decomposition of cumene hydroperoxide
AssigneeUop LLC
InventorsRobert J. Schmidt, Deng-Yang Jan, Raelynn M. Miller, James A. Johnson
Life of this patent
Estimating the term…
Abstract
The present invention provides a process for decomposing a cumene hydroperoxide to produce phenol and acetone. The process utilizes a solid catalyst that can be non-layered or layered. The process includes: (1) introducing a process stream containing cumene hydroperoxide into a reaction vessel; (2) contacting the process stream with catalyst particles to form a process stream; and (3) withdrawing a portion of the product stream from the reactor and recovering phenol and acetone products.
Claims20
A process for decomposing a cumene hydroperoxide to produce phenol and acetone comprising:
- introducing a process stream containing cumene hydroperoxide into a reaction vessel;
- contacting the process stream with catalyst particles to form a product stream, the catalyst particles having an inner core selected from one or more of refractory inorganic oxides, silicon carbide, and metals;
- and an outer layer of an acidic material bonded to the inner core;
- introducing into the reaction vessel a cooled stream comprising unreacted cumene hydroperoxide, phenol, and acetone and contacting the cooled stream with the process stream;
- and
- withdrawing a portion of the product stream from the reactor and recovering phenol and acetone products.
A process for decomposing a cumene hydroperoxide to produce phenol and acetone comprising:
- introducing a process stream containing cumene hydroperoxide into a reaction vessel;
- contacting the process stream with catalyst particles to form a product stream, the catalyst particles having an inner core selected froth one or more of refractory inorganic oxides, silicon carbide, and metals;
- and an outer layer bonded to the inner core, the outer layer comprising a material selected from the group consisting of zeolite beta, FAU, MWW, UZM-4, UZM-5, UZM-8, ZSM-18, MOR, MTW, SPA and Cs salts of heteropoly acid;
- and
- withdrawing a portion of the product stream from the reactor and recovering phenol and acetone products.
A process for decomposing a cumene hydroperoxide to produce phenol and acetone comprising:
- introducing a process stream containing cumene hydroperoxide into a reaction vessel;
- contacting the process stream with catalyst particles to form a product stream, the catalyst particles having an inner core selected from one or more of refractory inorganic oxides, silicon carbide, and metals;
- and an outer layer of an acidic material bonded to the inner core;
- and
- withdrawing a portion of the product stream from the reactor and recovering phenol and acetone products;
- wherein the product stream contains dicumylperoxide and the process further comprises converting the dicumylperoxide to cumene hydroperoxide and dimethylphenylcarbinol.
Dependencies are inferred from the claim text.