System and Process for Making Phenol and/or Cyclohexanone
US-2015375135-A1 · Dec 31, 2015 · US
Process for producing phenol
US9340474B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9340474-B2 |
| Application number | US-201314439154-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 22, 2013 |
| Priority date | Dec 6, 2012 |
| Publication date | May 17, 2016 |
| Grant date | May 17, 2016 |
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Abstract
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In a process for producing phenol and/or cyclohexanone, a cleavage reaction mixture containing cyclohexyl-1-phenyl-hydroperoxide and cyclohexylbenzene is contacted with sulfuric acid and water under cleavage conditions effective to form a cleavage reaction effluent containing phenol, cyclohexanone, cyclohexylbenzene, water, sulfuric acid and 1-phenylcyclohexanol. At least a portion of the cleavage reaction effluent is neutralized with a basic material to produce a neutralized cleavage product and at least a portion of the neutralized cleavage product is supplied in the absence of an added dehydration catalyst to a distillation column. The distillation column is operated so that at least a portion of the neutralized cleavage product is exposed to a temperature greater than 70° C. at at least one location in the distillation column whereby at least a portion of the 1-phenylcyclohexanol in the neutralized cleavage product is dehydrated to phenylcyclohexene.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for producing phenol and/or cyclohexanone, the process comprising: (a) providing a cleavage reaction mixture containing cyclohexyl-1-phenyl-hydroperoxide and cyclohexylbenzene; (b) contacting at least a portion of the cleavage reaction mixture with sulfuric acid and water under cleavage conditions effective to form a cleavage reaction effluent containing phenol, cyclohexanone, cyclohexylbenzene, water, sulfuric acid, and 1-phenylcyclohexano…
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Classifications
Chemistry & Metallurgy · mapped topic
- C07C37/08Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9340474B2 cover?
- In a process for producing phenol and/or cyclohexanone, a cleavage reaction mixture containing cyclohexyl-1-phenyl-hydroperoxide and cyclohexylbenzene is contacted with sulfuric acid and water under cleavage conditions effective to form a cleavage reaction effluent containing phenol, cyclohexanone, cyclohexylbenzene, water, sulfuric acid and 1-phenylcyclohexanol. At least a portion of the cleav…
- Who is the assignee on this patent?
- Exxonmobil Chem Patents Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C37/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 17 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).