Production of cyclohexylbenzene hydroperoxide
AssigneeExxonMobil Chemical Patents Inc.
InventorsKun Wang, Edmund John Mozeleski, Jihad Mohammed Dakka
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Abstract
In a process for producing cyclohexylbenzene hydroperoxide, cyclohexylbenzene is contacted with oxygen to produce a reaction product comprising cyclohexylbenzene hydroperoxide and unreacted cyclohexylbenzene. The reaction product is then maintained under conditions such that crystals of cyclohexylbenzene hydroperoxide form and separate from the reaction product. The cyclohexylbenzene hydroperoxide crystals are then recovered from the reaction product.
Claims21
A process for producing cyclohexylbenzene hydroperoxide, the process comprising:
- (a) contacting cyclohexylbenzene with oxygen and N-hydroxyphthalimide to produce a reaction product comprising cyclohexylbenzene hydroperoxide and at least a portion of the N-hydroxyphthalimide;
- (a-1) removing at least a portion of the N-hydroxyphthalimide from the reaction product;
- (b) after the removing (a-1), treating at least a portion of the reaction product under conditions such that crystals of cyclohexylbenzene hydroperoxide form;
- and
- (c) recovering at least a portion of the cyclohexylbenzene hydroperoxide crystals from the reaction product.
A process for producing phenol and cyclohexanone, the process comprising:
- (a) contacting cyclohexylbenzene with oxygen and N-hydroxyphthalamide to produce a reaction product comprising cyclohexylbenzene hydroperoxide and at least a portion of the N-hydroxyphthalamide;
- (a-1) treating the reaction product to remove at least a portion of the N-hydroxyphthalimide prior to the treating step (b)
- (b) after the treating (a-1), treating at least a portion of the reaction product under conditions such that crystals of cyclohexylbenzene hydroperoxide form;
- (c) recovering at least a portion of the cyclohexylbenzene hydroperoxide crystals from the reaction product;
- and
- (d) cleaving at least some of the cyclohexylbenzene hydroperoxide recovered in (c) to produce phenol and cyclohexanone.
Dependencies are inferred from the claim text.