A PROCESS FOR PURIFICATION OF CRUDE METHYL METHACRYLATE
A process for purifying a crude methyl methacrylate (MMA) stream is described, typically from one or more depolymerised (co)polymers comprising methyl methacrylate (MMA). The stream comprises MMA at a level of at least 80 wt% and ethyl acrylate (EA). The process includes the steps of:- fractionally...
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| creator | HJALMARSSON, LARS ANDERS NICKLAS CLARKE, ADAM JAMES |
| description | A process for purifying a crude methyl methacrylate (MMA) stream is described, typically from one or more depolymerised (co)polymers comprising methyl methacrylate (MMA). The stream comprises MMA at a level of at least 80 wt% and ethyl acrylate (EA). The process includes the steps of:- fractionally crystallising the said MMA stream to provide a fractionally crystallised MMA stream having a reduced EA content relative to the MMA stream immediately prior to fractional crystallisation.
L'invention concerne un procédé de purification d'un flux de méthacrylate de méthyle brut (MMA), typiquement à partir d'un ou de plusieurs (co)polymères dépolymérisés comprenant du méthacrylate de méthyle (MMA). Le flux comprend du MMA à un niveau d'au moins 80 % en poids et de l'acrylate d'éthyle (EA). Le procédé comprend les étapes consistant à : cristalliser de manière fractionnée ledit flux de MMA pour fournir un flux de MMA cristallisé de manière fractionnée ayant une teneur en EA réduite par rapport au flux de MMA immédiatement avant la cristallisation fractionnée. |
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L'invention concerne un procédé de purification d'un flux de méthacrylate de méthyle brut (MMA), typiquement à partir d'un ou de plusieurs (co)polymères dépolymérisés comprenant du méthacrylate de méthyle (MMA). Le flux comprend du MMA à un niveau d'au moins 80 % en poids et de l'acrylate d'éthyle (EA). Le procédé comprend les étapes consistant à : cristalliser de manière fractionnée ledit flux de MMA pour fournir un flux de MMA cristallisé de manière fractionnée ayant une teneur en EA réduite par rapport au flux de MMA immédiatement avant la cristallisation fractionnée.</description><language>eng ; fre</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230622&DB=EPODOC&CC=CA&NR=3240921A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230622&DB=EPODOC&CC=CA&NR=3240921A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HJALMARSSON, LARS ANDERS NICKLAS</creatorcontrib><creatorcontrib>CLARKE, ADAM JAMES</creatorcontrib><title>A PROCESS FOR PURIFICATION OF CRUDE METHYL METHACRYLATE</title><description>A process for purifying a crude methyl methacrylate (MMA) stream is described, typically from one or more depolymerised (co)polymers comprising methyl methacrylate (MMA). The stream comprises MMA at a level of at least 80 wt% and ethyl acrylate (EA). The process includes the steps of:- fractionally crystallising the said MMA stream to provide a fractionally crystallised MMA stream having a reduced EA content relative to the MMA stream immediately prior to fractional crystallisation.
L'invention concerne un procédé de purification d'un flux de méthacrylate de méthyle brut (MMA), typiquement à partir d'un ou de plusieurs (co)polymères dépolymérisés comprenant du méthacrylate de méthyle (MMA). Le flux comprend du MMA à un niveau d'au moins 80 % en poids et de l'acrylate d'éthyle (EA). Le procédé comprend les étapes consistant à : cristalliser de manière fractionnée ledit flux de MMA pour fournir un flux de MMA cristallisé de manière fractionnée ayant une teneur en EA réduite par rapport au flux de MMA immédiatement avant la cristallisation fractionnée.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDB3VAgI8nd2DQ5WcPMPUggIDfJ083R2DPH091Pwd1NwDgp1cVXwdQ3xiPQBU47OQZE-jiGuPAysaYk5xam8UJqbQcHNNcTZQze1ID8-tbggMTk1L7Uk3tnR2MjEwNLI0NHQmAglAOXwJ6A</recordid><startdate>20230622</startdate><enddate>20230622</enddate><creator>HJALMARSSON, LARS ANDERS NICKLAS</creator><creator>CLARKE, ADAM JAMES</creator><scope>EVB</scope></search><sort><creationdate>20230622</creationdate><title>A PROCESS FOR PURIFICATION OF CRUDE METHYL METHACRYLATE</title><author>HJALMARSSON, LARS ANDERS NICKLAS ; CLARKE, ADAM JAMES</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA3240921A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2023</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>HJALMARSSON, LARS ANDERS NICKLAS</creatorcontrib><creatorcontrib>CLARKE, ADAM JAMES</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HJALMARSSON, LARS ANDERS NICKLAS</au><au>CLARKE, ADAM JAMES</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A PROCESS FOR PURIFICATION OF CRUDE METHYL METHACRYLATE</title><date>2023-06-22</date><risdate>2023</risdate><abstract>A process for purifying a crude methyl methacrylate (MMA) stream is described, typically from one or more depolymerised (co)polymers comprising methyl methacrylate (MMA). The stream comprises MMA at a level of at least 80 wt% and ethyl acrylate (EA). The process includes the steps of:- fractionally crystallising the said MMA stream to provide a fractionally crystallised MMA stream having a reduced EA content relative to the MMA stream immediately prior to fractional crystallisation.
L'invention concerne un procédé de purification d'un flux de méthacrylate de méthyle brut (MMA), typiquement à partir d'un ou de plusieurs (co)polymères dépolymérisés comprenant du méthacrylate de méthyle (MMA). Le flux comprend du MMA à un niveau d'au moins 80 % en poids et de l'acrylate d'éthyle (EA). Le procédé comprend les étapes consistant à : cristalliser de manière fractionnée ledit flux de MMA pour fournir un flux de MMA cristallisé de manière fractionnée ayant une teneur en EA réduite par rapport au flux de MMA immédiatement avant la cristallisation fractionnée.</abstract><oa>free_for_read</oa></addata></record> |
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| title | A PROCESS FOR PURIFICATION OF CRUDE METHYL METHACRYLATE |
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