PROCESS TO REDUCE THE CONCENTRATION OF FLUOROORGANIC ACIDIC COMPOUNDS IN AQUEOUS DISPERSIONS
The present disclosure provides a process for removing fluoroorganic acidic compounds from a dispersion of fluoroorganic polymer particles in at least one protic solvent, the process comprising the following steps:(i) forming a mixture ofa. a dispersion having a pH-value of less than 6 and comprisin...
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| creator | HUBER, Stefan HINTZER, Klaus DADALAS, Michael C KRUPP, Valentina ZHANG, Zhongxing |
| description | The present disclosure provides a process for removing fluoroorganic acidic compounds from a dispersion of fluoroorganic polymer particles in at least one protic solvent, the process comprising the following steps:(i) forming a mixture ofa. a dispersion having a pH-value of less than 6 and comprising fluoroorganic polymer particles, at least one protic solvent and at least one fluoroorganic compound withb. an extraction composition comprising at least one alkylamine;(ii) reacting the fluoroorganic acidic compound with the alkylamine to form a hydrophobic ionic compound comprising the anion of the fluoroorganic acidic compound and the cation of the alkyl amine;(iii) separating the mixture into a first phase comprising the at least one protic solvent, the fluoroorganic polymer particles and no greater than 50% by weight of the total amount of the at least one fluoroorganic compound initially present in the dispersion in step (i); and a second phase comprising the hydrophobic ionic compound; and(iv) removing the first phase from the second phase. |
| format | Patent |
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and a second phase comprising the hydrophobic ionic compound; and(iv) removing the first phase from the second phase.</description><language>eng ; fre ; ger</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</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=20230607&DB=EPODOC&CC=EP&NR=4188883A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230607&DB=EPODOC&CC=EP&NR=4188883A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HUBER, Stefan</creatorcontrib><creatorcontrib>HINTZER, Klaus</creatorcontrib><creatorcontrib>DADALAS, Michael C</creatorcontrib><creatorcontrib>KRUPP, Valentina</creatorcontrib><creatorcontrib>ZHANG, Zhongxing</creatorcontrib><title>PROCESS TO REDUCE THE CONCENTRATION OF FLUOROORGANIC ACIDIC COMPOUNDS IN AQUEOUS DISPERSIONS</title><description>The present disclosure provides a process for removing fluoroorganic acidic compounds from a dispersion of fluoroorganic polymer particles in at least one protic solvent, the process comprising the following steps:(i) forming a mixture ofa. a dispersion having a pH-value of less than 6 and comprising fluoroorganic polymer particles, at least one protic solvent and at least one fluoroorganic compound withb. an extraction composition comprising at least one alkylamine;(ii) reacting the fluoroorganic acidic compound with the alkylamine to form a hydrophobic ionic compound comprising the anion of the fluoroorganic acidic compound and the cation of the alkyl amine;(iii) separating the mixture into a first phase comprising the at least one protic solvent, the fluoroorganic polymer particles and no greater than 50% by weight of the total amount of the at least one fluoroorganic compound initially present in the dispersion in step (i); and a second phase comprising the hydrophobic ionic compound; and(iv) removing the first phase from the second phase.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNizEKAjEQANNYiPqH_YDFcRa2YbPxApqNu0knHIfESvTg_D-m8AFOM83M2tySMJIqZAYhV5AgDwTIESlmsTlwBPbgz4WFWU42BgSLwTUhXxKX6BRCBHstxEXBBU0k2j7dmtVjei519_PGgKeMw77O77Eu83Svr_oZKR26Y6O3Xf9H8gV5xjJe</recordid><startdate>20230607</startdate><enddate>20230607</enddate><creator>HUBER, Stefan</creator><creator>HINTZER, Klaus</creator><creator>DADALAS, Michael C</creator><creator>KRUPP, Valentina</creator><creator>ZHANG, Zhongxing</creator><scope>EVB</scope></search><sort><creationdate>20230607</creationdate><title>PROCESS TO REDUCE THE CONCENTRATION OF FLUOROORGANIC ACIDIC COMPOUNDS IN AQUEOUS DISPERSIONS</title><author>HUBER, Stefan ; HINTZER, Klaus ; DADALAS, Michael C ; KRUPP, Valentina ; ZHANG, Zhongxing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP4188883A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2023</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</topic><toplevel>online_resources</toplevel><creatorcontrib>HUBER, Stefan</creatorcontrib><creatorcontrib>HINTZER, Klaus</creatorcontrib><creatorcontrib>DADALAS, Michael C</creatorcontrib><creatorcontrib>KRUPP, Valentina</creatorcontrib><creatorcontrib>ZHANG, Zhongxing</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HUBER, Stefan</au><au>HINTZER, Klaus</au><au>DADALAS, Michael C</au><au>KRUPP, Valentina</au><au>ZHANG, Zhongxing</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCESS TO REDUCE THE CONCENTRATION OF FLUOROORGANIC ACIDIC COMPOUNDS IN AQUEOUS DISPERSIONS</title><date>2023-06-07</date><risdate>2023</risdate><abstract>The present disclosure provides a process for removing fluoroorganic acidic compounds from a dispersion of fluoroorganic polymer particles in at least one protic solvent, the process comprising the following steps:(i) forming a mixture ofa. a dispersion having a pH-value of less than 6 and comprising fluoroorganic polymer particles, at least one protic solvent and at least one fluoroorganic compound withb. an extraction composition comprising at least one alkylamine;(ii) reacting the fluoroorganic acidic compound with the alkylamine to form a hydrophobic ionic compound comprising the anion of the fluoroorganic acidic compound and the cation of the alkyl amine;(iii) separating the mixture into a first phase comprising the at least one protic solvent, the fluoroorganic polymer particles and no greater than 50% by weight of the total amount of the at least one fluoroorganic compound initially present in the dispersion in step (i); and a second phase comprising the hydrophobic ionic compound; and(iv) removing the first phase from the second phase.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | PROCESS TO REDUCE THE CONCENTRATION OF FLUOROORGANIC ACIDIC COMPOUNDS IN AQUEOUS DISPERSIONS |
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