Titanium dioxide removal method for circulating EG in polyester production
The invention provides a titanium dioxide removal method for circulating EG (ethylene glycol) in polyester production, which comprises the following steps: firstly, enabling ethylene glycol mixed steam generated in an esterification process to pass through a process tower to become a recovered EG so...
Gespeichert in:
| Hauptverfasser: | , , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | GUO YONGLIN HOU ZHENGJUN GAO BINGBING YU XIAOSAN ZHAO DANXIAN |
| description | The invention provides a titanium dioxide removal method for circulating EG (ethylene glycol) in polyester production, which comprises the following steps: firstly, enabling ethylene glycol mixed steam generated in an esterification process to pass through a process tower to become a recovered EG solution; treating and recovering the EG solution on an ethylene glycol extraction pipeline of the process tower by adopting an outer ceramic membrane to obtain a circulating EG solution to a clear liquid tank, and intercepting water insoluble substances such as titanium dioxide to form a concentrated solution to a circulating tank; and finally, filtering to obtain a circulating EG solution, feeding a part of the circulating EG solution into a first esterification kettle to adjust esterification reaction, and feeding a large part of the circulating EG solution into a recycled ethylene glycol collecting tank to be mixed with external pure supplementary ethylene glycol for preparing slurry. Specific filtering and separ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN114426663A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN114426663A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN114426663A3</originalsourceid><addsrcrecordid>eNqNyrEOwiAQAFAWB6P-w_kBHWobdtPUGgen7g2Bq14CHIHD6N-7-AFOb3lbdZtJTKQawBG_ySFkDPwyHgLKkx2snMFSttUbofiAcQKKkNh_sAhmSJldtUIc92qzGl_w8HOnjpdxHq4NJl6wJGMxoizDvW37_qS17s7dP-cLSGk1aA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Titanium dioxide removal method for circulating EG in polyester production</title><source>esp@cenet</source><creator>GUO YONGLIN ; HOU ZHENGJUN ; GAO BINGBING ; YU XIAOSAN ; ZHAO DANXIAN</creator><creatorcontrib>GUO YONGLIN ; HOU ZHENGJUN ; GAO BINGBING ; YU XIAOSAN ; ZHAO DANXIAN</creatorcontrib><description>The invention provides a titanium dioxide removal method for circulating EG (ethylene glycol) in polyester production, which comprises the following steps: firstly, enabling ethylene glycol mixed steam generated in an esterification process to pass through a process tower to become a recovered EG solution; treating and recovering the EG solution on an ethylene glycol extraction pipeline of the process tower by adopting an outer ceramic membrane to obtain a circulating EG solution to a clear liquid tank, and intercepting water insoluble substances such as titanium dioxide to form a concentrated solution to a circulating tank; and finally, filtering to obtain a circulating EG solution, feeding a part of the circulating EG solution into a first esterification kettle to adjust esterification reaction, and feeding a large part of the circulating EG solution into a recycled ethylene glycol collecting tank to be mixed with external pure supplementary ethylene glycol for preparing slurry. Specific filtering and separ</description><language>chi ; eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2022</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=20220503&DB=EPODOC&CC=CN&NR=114426663A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220503&DB=EPODOC&CC=CN&NR=114426663A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GUO YONGLIN</creatorcontrib><creatorcontrib>HOU ZHENGJUN</creatorcontrib><creatorcontrib>GAO BINGBING</creatorcontrib><creatorcontrib>YU XIAOSAN</creatorcontrib><creatorcontrib>ZHAO DANXIAN</creatorcontrib><title>Titanium dioxide removal method for circulating EG in polyester production</title><description>The invention provides a titanium dioxide removal method for circulating EG (ethylene glycol) in polyester production, which comprises the following steps: firstly, enabling ethylene glycol mixed steam generated in an esterification process to pass through a process tower to become a recovered EG solution; treating and recovering the EG solution on an ethylene glycol extraction pipeline of the process tower by adopting an outer ceramic membrane to obtain a circulating EG solution to a clear liquid tank, and intercepting water insoluble substances such as titanium dioxide to form a concentrated solution to a circulating tank; and finally, filtering to obtain a circulating EG solution, feeding a part of the circulating EG solution into a first esterification kettle to adjust esterification reaction, and feeding a large part of the circulating EG solution into a recycled ethylene glycol collecting tank to be mixed with external pure supplementary ethylene glycol for preparing slurry. Specific filtering and separ</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyrEOwiAQAFAWB6P-w_kBHWobdtPUGgen7g2Bq14CHIHD6N-7-AFOb3lbdZtJTKQawBG_ySFkDPwyHgLKkx2snMFSttUbofiAcQKKkNh_sAhmSJldtUIc92qzGl_w8HOnjpdxHq4NJl6wJGMxoizDvW37_qS17s7dP-cLSGk1aA</recordid><startdate>20220503</startdate><enddate>20220503</enddate><creator>GUO YONGLIN</creator><creator>HOU ZHENGJUN</creator><creator>GAO BINGBING</creator><creator>YU XIAOSAN</creator><creator>ZHAO DANXIAN</creator><scope>EVB</scope></search><sort><creationdate>20220503</creationdate><title>Titanium dioxide removal method for circulating EG in polyester production</title><author>GUO YONGLIN ; HOU ZHENGJUN ; GAO BINGBING ; YU XIAOSAN ; ZHAO DANXIAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN114426663A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>GUO YONGLIN</creatorcontrib><creatorcontrib>HOU ZHENGJUN</creatorcontrib><creatorcontrib>GAO BINGBING</creatorcontrib><creatorcontrib>YU XIAOSAN</creatorcontrib><creatorcontrib>ZHAO DANXIAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GUO YONGLIN</au><au>HOU ZHENGJUN</au><au>GAO BINGBING</au><au>YU XIAOSAN</au><au>ZHAO DANXIAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Titanium dioxide removal method for circulating EG in polyester production</title><date>2022-05-03</date><risdate>2022</risdate><abstract>The invention provides a titanium dioxide removal method for circulating EG (ethylene glycol) in polyester production, which comprises the following steps: firstly, enabling ethylene glycol mixed steam generated in an esterification process to pass through a process tower to become a recovered EG solution; treating and recovering the EG solution on an ethylene glycol extraction pipeline of the process tower by adopting an outer ceramic membrane to obtain a circulating EG solution to a clear liquid tank, and intercepting water insoluble substances such as titanium dioxide to form a concentrated solution to a circulating tank; and finally, filtering to obtain a circulating EG solution, feeding a part of the circulating EG solution into a first esterification kettle to adjust esterification reaction, and feeding a large part of the circulating EG solution into a recycled ethylene glycol collecting tank to be mixed with external pure supplementary ethylene glycol for preparing slurry. Specific filtering and separ</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN114426663A |
| source | esp@cenet |
| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Titanium dioxide removal method for circulating EG in polyester production |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-26T05%3A58%3A53IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=GUO%20YONGLIN&rft.date=2022-05-03&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN114426663A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |