Process for producing epsilon-caprolactam and apparatus for the process
The present invention relates to a process for producing -caprolactam from cyclohexanone oxime and an apparatus for the process. A process is provided for producing -caprolactam from cyclohexanone oxime. The process comprises a evaporation step of a mixture of cyclohexanone oxime and a solvent by in...
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creator | Hölderich, Wolfgang F Dahlhoff, Gerd Sbresny, Andre Ichihashi, Hiroshi |
description | The present invention relates to a process for producing -caprolactam from cyclohexanone oxime and an apparatus for the process.
A process is provided for producing -caprolactam from cyclohexanone oxime. The process comprises a evaporation step of a mixture of cyclohexanone oxime and a solvent by introducing the mixture into a fluidized bed in which inert particles is fluidized by an inert gas, the particles having heat enough to evaporate the mixture; and a rearrangement step of cyclohexanone oxime in the evaporated mixture into -caprolactam by a gas phase Beckmann rearrangement reaction using a solid catalyst, excluding a catalyst consisting of a boric acid or a boron oxide. |
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A process is provided for producing -caprolactam from cyclohexanone oxime. The process comprises a evaporation step of a mixture of cyclohexanone oxime and a solvent by introducing the mixture into a fluidized bed in which inert particles is fluidized by an inert gas, the particles having heat enough to evaporate the mixture; and a rearrangement step of cyclohexanone oxime in the evaporated mixture into -caprolactam by a gas phase Beckmann rearrangement reaction using a solid catalyst, excluding a catalyst consisting of a boric acid or a boron oxide.</description><language>eng</language><creationdate>2002</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6482945$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,778,800,883,64020</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6482945$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Hölderich, Wolfgang F</creatorcontrib><creatorcontrib>Dahlhoff, Gerd</creatorcontrib><creatorcontrib>Sbresny, Andre</creatorcontrib><creatorcontrib>Ichihashi, Hiroshi</creatorcontrib><creatorcontrib>Sumitomo Chemical Company, Limited</creatorcontrib><title>Process for producing epsilon-caprolactam and apparatus for the process</title><description>The present invention relates to a process for producing -caprolactam from cyclohexanone oxime and an apparatus for the process.
A process is provided for producing -caprolactam from cyclohexanone oxime. The process comprises a evaporation step of a mixture of cyclohexanone oxime and a solvent by introducing the mixture into a fluidized bed in which inert particles is fluidized by an inert gas, the particles having heat enough to evaporate the mixture; and a rearrangement step of cyclohexanone oxime in the evaporated mixture into -caprolactam by a gas phase Beckmann rearrangement reaction using a solid catalyst, excluding a catalyst consisting of a boric acid or a boron oxide.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNrjZHAPKMpPTi0uVkjLL1IoKMpPKU3OzEtXSC0ozszJz9NNTgSK5SQmlyTmKiTmpSgkFhQkFiWWlELUl2SkgvSA9PMwsKYl5hSn8kJpbgYFN9cQZw_d0uKCxJLUvJLi-PSiRBBlYGZiYWRpYmpMhBIAZqA1Ug</recordid><startdate>20021119</startdate><enddate>20021119</enddate><creator>Hölderich, Wolfgang F</creator><creator>Dahlhoff, Gerd</creator><creator>Sbresny, Andre</creator><creator>Ichihashi, Hiroshi</creator><scope>EFH</scope></search><sort><creationdate>20021119</creationdate><title>Process for producing epsilon-caprolactam and apparatus for the process</title><author>Hölderich, Wolfgang F ; Dahlhoff, Gerd ; Sbresny, Andre ; Ichihashi, Hiroshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_064829453</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Hölderich, Wolfgang F</creatorcontrib><creatorcontrib>Dahlhoff, Gerd</creatorcontrib><creatorcontrib>Sbresny, Andre</creatorcontrib><creatorcontrib>Ichihashi, Hiroshi</creatorcontrib><creatorcontrib>Sumitomo Chemical Company, Limited</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hölderich, Wolfgang F</au><au>Dahlhoff, Gerd</au><au>Sbresny, Andre</au><au>Ichihashi, Hiroshi</au><aucorp>Sumitomo Chemical Company, Limited</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for producing epsilon-caprolactam and apparatus for the process</title><date>2002-11-19</date><risdate>2002</risdate><abstract>The present invention relates to a process for producing -caprolactam from cyclohexanone oxime and an apparatus for the process.
A process is provided for producing -caprolactam from cyclohexanone oxime. The process comprises a evaporation step of a mixture of cyclohexanone oxime and a solvent by introducing the mixture into a fluidized bed in which inert particles is fluidized by an inert gas, the particles having heat enough to evaporate the mixture; and a rearrangement step of cyclohexanone oxime in the evaporated mixture into -caprolactam by a gas phase Beckmann rearrangement reaction using a solid catalyst, excluding a catalyst consisting of a boric acid or a boron oxide.</abstract><oa>free_for_read</oa></addata></record> |
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title | Process for producing epsilon-caprolactam and apparatus for the process |
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