Process for making cyclohexanone

A technology of cyclohexanone and cyclohexylbenzene, applied in the field of preparing cyclohexanone, can solve problems such as yield loss and poisoning

Inactive Publication Date: 2016-04-06
EXXONMOBIL CHEM PAT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since phenol / cyclohexanone mixtures always contain non-negligible amounts of (i) sulfur-containing components that can poison the hydrogenation catalyst, and (ii) cyclohexylbenzene that can be converted to bicyclohexane during the hydrogenation step, and Such a method presents challenges since the hydrogenation of the phenol / cyclohexanone / cyclohexylbenzene mixture also leads to the formation of cyclohexanol, resulting in a loss of yield

Method used

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  • Process for making cyclohexanone
  • Process for making cyclohexanone
  • Process for making cyclohexanone

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Embodiment Construction

[0023] Various specific embodiments, versions and examples of the present invention will now be described, including preferred embodiments and definitions employed herein for understanding the claimed invention. While the following detailed description presents certain preferred embodiments, those skilled in the art will appreciate that these embodiments are exemplary only and that the invention may be practiced in other ways. For purposes of determining infringement, the scope of the present invention will refer to any one or more of the appended claims, including their equivalents, and elements or limitations equivalent to those recited. Any reference to "invention" may refer to one or more, but not necessarily all, of the inventions defined by the claims.

[0024] In this disclosure, methods are described as comprising at least one "step." It is to be understood that each step is an operation or run that can be performed one or more times in the method, either continuously...

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Abstract

Disclosed are processes for making cyclohexanone from a mixture comprising phenol, cyclohexanone, cyclohexylbenzene, and a catalyst poison component, comprising a step of removing at least a portion of the catalyst poison component to reduce poisoning of a hydrogenation catalyst used for hydrogenating phenol to cyclohexanone.

Description

[0001] Priority claims to related applications [0002] This application claims priority to U.S. Provisional Application 62 / 140,702, filed March 31, 2015; U.S. Provisional Application 62 / 057,919, filed September 30, 2014; and European Patent Application 15151424.7, filed January 16, 2015, Their disclosures are hereby incorporated by reference in their entirety into the present application. technical field [0003] The present invention relates to a process for the preparation of cyclohexanone. In particular, the present invention relates to a process for the preparation of cyclohexanone by hydrogenation of phenol. The invention is useful, for example, in the preparation of cyclohexanone by oxidation of cyclohexylbenzene and cleavage of cyclohexylbenzene hydroperoxide. Background technique [0004] Cyclohexanone is an important raw material in the chemical industry and is widely used, for example, in the production of phenolic resins, bisphenol A, ε-caprolactam, adipic acid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C49/403C07C45/78C07C45/82C07C45/85
CPCC07C45/006C07C45/82C07C45/78C07C45/85C07C49/403C07C37/74C07C37/82C07C45/79C07C7/04Y02P20/52C07C2601/14C07C7/005C07C7/12C07C39/04C07C13/28
Inventor K·H·库克莱尔J·F·W·韦伯A·J·波奇尔J·D·戴维斯C·L·贝克尔J·M·达卡
Owner EXXONMOBIL CHEM PAT INC
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