MANUFACTURING METHOD OF VINYL CHLORIDE RESIN FOR PREVENTING SCALE ADHESION
PROBLEM TO BE SOLVED: To provide a manufacturing method for preventing the following issues: scale is formed in a connection piping of a polymerization reactor for manufacturing vinyl chloride resin, the piping is blocked while the scale is growing and a polymerization process is disturbed, especial...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Patent |
| Sprache: | eng ; jpn |
| 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 | SANO NORIHISA MIZUTA HIROMASA CHIYODA TAKAHIRO |
| description | PROBLEM TO BE SOLVED: To provide a manufacturing method for preventing the following issues: scale is formed in a connection piping of a polymerization reactor for manufacturing vinyl chloride resin, the piping is blocked while the scale is growing and a polymerization process is disturbed, especially reaction control becomes difficult when a safety valve connection piping is blocked, therefore each connection piping should be decomposed periodically and inside should be cleaned, and there is possibility that vinyl chloride monomer gas is discharged outside the system at this time and this is not preferable.SOLUTION: Each connection piping of an upper part of a polymer reactor is collected, a nitrogen piping 21 is connected to the connection piping 20 and nitrogen of piping volume is sealed. Thereby vinyl chloride monomer gas which is a causative material for scale formation can be pushed back from the connection piping 20 to the polymerization reactor and scale formation can be prevented.SELECTED DRAWING: Figure 2
【課題】塩化ビニール系樹脂製造のための重合反応器の接続配管内に、スケールが形成され、スケールが成長していくと、その配管内が閉塞し、重合プロセスに支障をきたす。特に、安全弁接続配管が閉塞すれば、反応制御が困難となる。このために、定期的に各接続配管を解体し、内部を掃除しなければならない。また、この時に、塩化ビニールモノマーガスが系外に放出される可能性もあり、好ましいことではない。これらのことを防ぐ対策を行なった製造方法を提供する。【解決手段】重合反応器上部の各接続配管を集約して、その接続配管２０に、窒素配管２１を繋ぎこみ、配管容積分の窒素を封入する。これによりスケール形成の原因物質である塩化ビニールモノマーガスを、接続配管２０から重合反応器内に押し戻すことができ、スケール形成を防止できる。【選択図】 図２ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2018104591A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2018104591A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2018104591A3</originalsourceid><addsrcrecordid>eNrjZPDydfQLdXN0DgkN8vRzV_B1DfHwd1Hwd1MI8_SL9FFw9vDxD_J0cVUIcg329FNw8w9SCAhyDXP1CwGpDnZ29HFVcHTxAEr6-_EwsKYl5hSn8kJpbgYlN9cQZw_d1IL8-NTigsTk1LzUknivACMDQwtDAxNTS0NHY6IUAQDGeS3m</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>MANUFACTURING METHOD OF VINYL CHLORIDE RESIN FOR PREVENTING SCALE ADHESION</title><source>esp@cenet</source><creator>SANO NORIHISA ; MIZUTA HIROMASA ; CHIYODA TAKAHIRO</creator><creatorcontrib>SANO NORIHISA ; MIZUTA HIROMASA ; CHIYODA TAKAHIRO</creatorcontrib><description>PROBLEM TO BE SOLVED: To provide a manufacturing method for preventing the following issues: scale is formed in a connection piping of a polymerization reactor for manufacturing vinyl chloride resin, the piping is blocked while the scale is growing and a polymerization process is disturbed, especially reaction control becomes difficult when a safety valve connection piping is blocked, therefore each connection piping should be decomposed periodically and inside should be cleaned, and there is possibility that vinyl chloride monomer gas is discharged outside the system at this time and this is not preferable.SOLUTION: Each connection piping of an upper part of a polymer reactor is collected, a nitrogen piping 21 is connected to the connection piping 20 and nitrogen of piping volume is sealed. Thereby vinyl chloride monomer gas which is a causative material for scale formation can be pushed back from the connection piping 20 to the polymerization reactor and scale formation can be prevented.SELECTED DRAWING: Figure 2
【課題】塩化ビニール系樹脂製造のための重合反応器の接続配管内に、スケールが形成され、スケールが成長していくと、その配管内が閉塞し、重合プロセスに支障をきたす。特に、安全弁接続配管が閉塞すれば、反応制御が困難となる。このために、定期的に各接続配管を解体し、内部を掃除しなければならない。また、この時に、塩化ビニールモノマーガスが系外に放出される可能性もあり、好ましいことではない。これらのことを防ぐ対策を行なった製造方法を提供する。【解決手段】重合反応器上部の各接続配管を集約して、その接続配管２０に、窒素配管２１を繋ぎこみ、配管容積分の窒素を封入する。これによりスケール形成の原因物質である塩化ビニールモノマーガスを、接続配管２０から重合反応器内に押し戻すことができ、スケール形成を防止できる。【選択図】 図２</description><language>eng ; jpn</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</subject><creationdate>2018</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=20180705&DB=EPODOC&CC=JP&NR=2018104591A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180705&DB=EPODOC&CC=JP&NR=2018104591A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SANO NORIHISA</creatorcontrib><creatorcontrib>MIZUTA HIROMASA</creatorcontrib><creatorcontrib>CHIYODA TAKAHIRO</creatorcontrib><title>MANUFACTURING METHOD OF VINYL CHLORIDE RESIN FOR PREVENTING SCALE ADHESION</title><description>PROBLEM TO BE SOLVED: To provide a manufacturing method for preventing the following issues: scale is formed in a connection piping of a polymerization reactor for manufacturing vinyl chloride resin, the piping is blocked while the scale is growing and a polymerization process is disturbed, especially reaction control becomes difficult when a safety valve connection piping is blocked, therefore each connection piping should be decomposed periodically and inside should be cleaned, and there is possibility that vinyl chloride monomer gas is discharged outside the system at this time and this is not preferable.SOLUTION: Each connection piping of an upper part of a polymer reactor is collected, a nitrogen piping 21 is connected to the connection piping 20 and nitrogen of piping volume is sealed. Thereby vinyl chloride monomer gas which is a causative material for scale formation can be pushed back from the connection piping 20 to the polymerization reactor and scale formation can be prevented.SELECTED DRAWING: Figure 2
【課題】塩化ビニール系樹脂製造のための重合反応器の接続配管内に、スケールが形成され、スケールが成長していくと、その配管内が閉塞し、重合プロセスに支障をきたす。特に、安全弁接続配管が閉塞すれば、反応制御が困難となる。このために、定期的に各接続配管を解体し、内部を掃除しなければならない。また、この時に、塩化ビニールモノマーガスが系外に放出される可能性もあり、好ましいことではない。これらのことを防ぐ対策を行なった製造方法を提供する。【解決手段】重合反応器上部の各接続配管を集約して、その接続配管２０に、窒素配管２１を繋ぎこみ、配管容積分の窒素を封入する。これによりスケール形成の原因物質である塩化ビニールモノマーガスを、接続配管２０から重合反応器内に押し戻すことができ、スケール形成を防止できる。【選択図】 図２</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><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPDydfQLdXN0DgkN8vRzV_B1DfHwd1Hwd1MI8_SL9FFw9vDxD_J0cVUIcg329FNw8w9SCAhyDXP1CwGpDnZ29HFVcHTxAEr6-_EwsKYl5hSn8kJpbgYlN9cQZw_d1IL8-NTigsTk1LzUknivACMDQwtDAxNTS0NHY6IUAQDGeS3m</recordid><startdate>20180705</startdate><enddate>20180705</enddate><creator>SANO NORIHISA</creator><creator>MIZUTA HIROMASA</creator><creator>CHIYODA TAKAHIRO</creator><scope>EVB</scope></search><sort><creationdate>20180705</creationdate><title>MANUFACTURING METHOD OF VINYL CHLORIDE RESIN FOR PREVENTING SCALE ADHESION</title><author>SANO NORIHISA ; MIZUTA HIROMASA ; CHIYODA TAKAHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2018104591A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2018</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><toplevel>online_resources</toplevel><creatorcontrib>SANO NORIHISA</creatorcontrib><creatorcontrib>MIZUTA HIROMASA</creatorcontrib><creatorcontrib>CHIYODA TAKAHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SANO NORIHISA</au><au>MIZUTA HIROMASA</au><au>CHIYODA TAKAHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MANUFACTURING METHOD OF VINYL CHLORIDE RESIN FOR PREVENTING SCALE ADHESION</title><date>2018-07-05</date><risdate>2018</risdate><abstract>PROBLEM TO BE SOLVED: To provide a manufacturing method for preventing the following issues: scale is formed in a connection piping of a polymerization reactor for manufacturing vinyl chloride resin, the piping is blocked while the scale is growing and a polymerization process is disturbed, especially reaction control becomes difficult when a safety valve connection piping is blocked, therefore each connection piping should be decomposed periodically and inside should be cleaned, and there is possibility that vinyl chloride monomer gas is discharged outside the system at this time and this is not preferable.SOLUTION: Each connection piping of an upper part of a polymer reactor is collected, a nitrogen piping 21 is connected to the connection piping 20 and nitrogen of piping volume is sealed. Thereby vinyl chloride monomer gas which is a causative material for scale formation can be pushed back from the connection piping 20 to the polymerization reactor and scale formation can be prevented.SELECTED DRAWING: Figure 2
【課題】塩化ビニール系樹脂製造のための重合反応器の接続配管内に、スケールが形成され、スケールが成長していくと、その配管内が閉塞し、重合プロセスに支障をきたす。特に、安全弁接続配管が閉塞すれば、反応制御が困難となる。このために、定期的に各接続配管を解体し、内部を掃除しなければならない。また、この時に、塩化ビニールモノマーガスが系外に放出される可能性もあり、好ましいことではない。これらのことを防ぐ対策を行なった製造方法を提供する。【解決手段】重合反応器上部の各接続配管を集約して、その接続配管２０に、窒素配管２１を繋ぎこみ、配管容積分の窒素を封入する。これによりスケール形成の原因物質である塩化ビニールモノマーガスを、接続配管２０から重合反応器内に押し戻すことができ、スケール形成を防止できる。【選択図】 図２</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng ; jpn |
| recordid | cdi_epo_espacenet_JP2018104591A |
| source | esp@cenet |
| 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 |
| title | MANUFACTURING METHOD OF VINYL CHLORIDE RESIN FOR PREVENTING SCALE ADHESION |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T11%3A11%3A40IST&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=SANO%20NORIHISA&rft.date=2018-07-05&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2018104591A%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 |