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Hydrolysis of poly(ethylene terephthalate) in a fluidised bed reactor
The hydrolysis of poly(ethylene terephthalate, PET) is the reverse of the direct esterification of terephthalic acid (TA) and ethylene glycol (EG). By this means the recovery of monomers is possible. These experiments have shown that 60%–72% of TA were recovered from virgin PET in a temperature rang...
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| Published in: | Polymer degradation and stability 2004-07, Vol.85 (1), p.571-575 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c428t-94177459621d8b46aef78efb72ae50d41202c73cfd9ab5b130fc12eb0b2b2a2b3 |
| container_end_page | 575 |
| container_issue | 1 |
| container_start_page | 571 |
| container_title | Polymer degradation and stability |
| container_volume | 85 |
| creator | Grause, Guido Kaminsky, Walter Fahrbach, Gerhard |
| description | The hydrolysis of poly(ethylene terephthalate, PET) is the reverse of the direct esterification of terephthalic acid (TA) and ethylene glycol (EG). By this means the recovery of monomers is possible. These experiments have shown that 60%–72% of TA were recovered from virgin PET in a temperature range between 400 and 500
°C. Another 22%–27% TA remained in oligomers. The highest yield of TA (72%) was found at 450
°C. When real materials were used, still 60%–69% of TA were found at 450
°C. There was also a catalytic effect of transition metal oxides which reduced the content of TA in oligomers to 8%. The yield of EG was less than 10% in all experiments. Most EG reacted with water to form carbon oxides and hydrogen. Other decomposition products were acetaldehyde and ethene. |
| doi_str_mv | 10.1016/j.polymdegradstab.2003.10.020 |
| format | article |
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°C. Another 22%–27% TA remained in oligomers. The highest yield of TA (72%) was found at 450
°C. When real materials were used, still 60%–69% of TA were found at 450
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°C. Another 22%–27% TA remained in oligomers. The highest yield of TA (72%) was found at 450
°C. When real materials were used, still 60%–69% of TA were found at 450
°C. There was also a catalytic effect of transition metal oxides which reduced the content of TA in oligomers to 8%. The yield of EG was less than 10% in all experiments. Most EG reacted with water to form carbon oxides and hydrogen. Other decomposition products were acetaldehyde and ethene.</description><subject>Ethylene glycol</subject><subject>Fluidised bed</subject><subject>Hydrolysis</subject><subject>Poly(ethylene terephthalate)</subject><subject>Terepthalic acid</subject><issn>0141-3910</issn><issn>1873-2321</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqNkEtLw0AUhQdRsFb_QzaKLhLnlSZZuJBSW6HgRtfDPO7YKWkSZ6ZC_r0T6sqVFy53cc754B6EbgkuCCaLx30x9O14MPDppQlRqoJizJJWYIrP0IzUFcspo-QczTDhJGcNwZfoKoQ9TsNLMkOrzWh8ogQXst5mE_Ae4m5soYMsgodhF3eylREeMtdlMrPt0RkXwGQqrQepY--v0YWVbYCb3ztHHy-r9-Um376tX5fP21xzWse84aSqeNksKDG14gsJtqrBqopKKLHhhGKqK6ataaQqFWHYakJBYUUVlVSxObo7cQfffx0hRHFwQUPbyg76YxC0pulfxpLx6WTUvg_BgxWDdwfpR0GwmMoTe_GnPDGVN8mpvJRfn_KQvvl24EXQDjoNxnnQUZje_ZP0AyQrgpw</recordid><startdate>20040701</startdate><enddate>20040701</enddate><creator>Grause, Guido</creator><creator>Kaminsky, Walter</creator><creator>Fahrbach, Gerhard</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20040701</creationdate><title>Hydrolysis of poly(ethylene terephthalate) in a fluidised bed reactor</title><author>Grause, Guido ; Kaminsky, Walter ; Fahrbach, Gerhard</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-94177459621d8b46aef78efb72ae50d41202c73cfd9ab5b130fc12eb0b2b2a2b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Ethylene glycol</topic><topic>Fluidised bed</topic><topic>Hydrolysis</topic><topic>Poly(ethylene terephthalate)</topic><topic>Terepthalic acid</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Grause, Guido</creatorcontrib><creatorcontrib>Kaminsky, Walter</creatorcontrib><creatorcontrib>Fahrbach, Gerhard</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Polymer degradation and stability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Grause, Guido</au><au>Kaminsky, Walter</au><au>Fahrbach, Gerhard</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydrolysis of poly(ethylene terephthalate) in a fluidised bed reactor</atitle><jtitle>Polymer degradation and stability</jtitle><date>2004-07-01</date><risdate>2004</risdate><volume>85</volume><issue>1</issue><spage>571</spage><epage>575</epage><pages>571-575</pages><issn>0141-3910</issn><eissn>1873-2321</eissn><abstract>The hydrolysis of poly(ethylene terephthalate, PET) is the reverse of the direct esterification of terephthalic acid (TA) and ethylene glycol (EG). By this means the recovery of monomers is possible. These experiments have shown that 60%–72% of TA were recovered from virgin PET in a temperature range between 400 and 500
°C. Another 22%–27% TA remained in oligomers. The highest yield of TA (72%) was found at 450
°C. When real materials were used, still 60%–69% of TA were found at 450
°C. There was also a catalytic effect of transition metal oxides which reduced the content of TA in oligomers to 8%. The yield of EG was less than 10% in all experiments. Most EG reacted with water to form carbon oxides and hydrogen. Other decomposition products were acetaldehyde and ethene.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.polymdegradstab.2003.10.020</doi><tpages>5</tpages></addata></record> |
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| identifier | ISSN: 0141-3910 |
| ispartof | Polymer degradation and stability, 2004-07, Vol.85 (1), p.571-575 |
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| language | eng |
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| source | ScienceDirect Freedom Collection |
| subjects | Ethylene glycol Fluidised bed Hydrolysis Poly(ethylene terephthalate) Terepthalic acid |
| title | Hydrolysis of poly(ethylene terephthalate) in a fluidised bed reactor |
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