PURIFICATION OF DIVINYLBENZENE
PURPOSE:To carry out the purification of the titled compound by treating crude divinylbenzene with a complexing agent, separating and decomposing the obtained complex, removing the complexing agent by fractionation, and treating the divinylbenzene phase with an alkaline aqueous solution, thereby rem...
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| creator | IKEDA AKIHIKO TAJIRI HIDEO AI HIDEO |
| description | PURPOSE:To carry out the purification of the titled compound by treating crude divinylbenzene with a complexing agent, separating and decomposing the obtained complex, removing the complexing agent by fractionation, and treating the divinylbenzene phase with an alkaline aqueous solution, thereby remarkably reducing the amount of copper or silver. CONSTITUTION:A crude divinylbenzene containing impurities such as ethylstyrene, diethylbenzene, etc. is mixed with a complexing agent composed of a cuprous salt (e.g. cuprous halide) and/or a silver salt (e.g. silver nitrate), (preferably cuprous chloride) to obtain a complex of divinylbenzene and the complexing agent. The complex is separated and decomposed, and the separated complexing agent is removed to obtain divinylbenzene. In the above process, the divinylbenzene phase obtained by separating the complexing agent is treated with an aqueous solution of an alkali such a NaOH, Ca(OH)2, etc. to effect the remarkable reduction of the amount of the complexing metal ion such as copper ion, silver ion, etc. and to achieve the sufficient purification of divinylbenzene. |
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CONSTITUTION:A crude divinylbenzene containing impurities such as ethylstyrene, diethylbenzene, etc. is mixed with a complexing agent composed of a cuprous salt (e.g. cuprous halide) and/or a silver salt (e.g. silver nitrate), (preferably cuprous chloride) to obtain a complex of divinylbenzene and the complexing agent. The complex is separated and decomposed, and the separated complexing agent is removed to obtain divinylbenzene. In the above process, the divinylbenzene phase obtained by separating the complexing agent is treated with an aqueous solution of an alkali such a NaOH, Ca(OH)2, etc. to effect the remarkable reduction of the amount of the complexing metal ion such as copper ion, silver ion, etc. and to achieve the sufficient purification of divinylbenzene.</description><language>eng</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>1984</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=19840315&DB=EPODOC&CC=JP&NR=S5946232A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19840315&DB=EPODOC&CC=JP&NR=S5946232A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IKEDA AKIHIKO</creatorcontrib><creatorcontrib>TAJIRI HIDEO</creatorcontrib><creatorcontrib>AI HIDEO</creatorcontrib><title>PURIFICATION OF DIVINYLBENZENE</title><description>PURPOSE:To carry out the purification of the titled compound by treating crude divinylbenzene with a complexing agent, separating and decomposing the obtained complex, removing the complexing agent by fractionation, and treating the divinylbenzene phase with an alkaline aqueous solution, thereby remarkably reducing the amount of copper or silver. CONSTITUTION:A crude divinylbenzene containing impurities such as ethylstyrene, diethylbenzene, etc. is mixed with a complexing agent composed of a cuprous salt (e.g. cuprous halide) and/or a silver salt (e.g. silver nitrate), (preferably cuprous chloride) to obtain a complex of divinylbenzene and the complexing agent. The complex is separated and decomposed, and the separated complexing agent is removed to obtain divinylbenzene. In the above process, the divinylbenzene phase obtained by separating the complexing agent is treated with an aqueous solution of an alkali such a NaOH, Ca(OH)2, etc. to effect the remarkable reduction of the amount of the complexing metal ion such as copper ion, silver ion, etc. and to achieve the sufficient purification of divinylbenzene.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1984</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJALCA3ydPN0dgzx9PdT8HdTcPEM8_SL9HFy9Yty9XPlYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxXgHBppYmZkbGRo7GRCgBAJLqIYE</recordid><startdate>19840315</startdate><enddate>19840315</enddate><creator>IKEDA AKIHIKO</creator><creator>TAJIRI HIDEO</creator><creator>AI HIDEO</creator><scope>EVB</scope></search><sort><creationdate>19840315</creationdate><title>PURIFICATION OF DIVINYLBENZENE</title><author>IKEDA AKIHIKO ; TAJIRI HIDEO ; AI HIDEO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS5946232A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1984</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>IKEDA AKIHIKO</creatorcontrib><creatorcontrib>TAJIRI HIDEO</creatorcontrib><creatorcontrib>AI HIDEO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IKEDA AKIHIKO</au><au>TAJIRI HIDEO</au><au>AI HIDEO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PURIFICATION OF DIVINYLBENZENE</title><date>1984-03-15</date><risdate>1984</risdate><abstract>PURPOSE:To carry out the purification of the titled compound by treating crude divinylbenzene with a complexing agent, separating and decomposing the obtained complex, removing the complexing agent by fractionation, and treating the divinylbenzene phase with an alkaline aqueous solution, thereby remarkably reducing the amount of copper or silver. CONSTITUTION:A crude divinylbenzene containing impurities such as ethylstyrene, diethylbenzene, etc. is mixed with a complexing agent composed of a cuprous salt (e.g. cuprous halide) and/or a silver salt (e.g. silver nitrate), (preferably cuprous chloride) to obtain a complex of divinylbenzene and the complexing agent. The complex is separated and decomposed, and the separated complexing agent is removed to obtain divinylbenzene. In the above process, the divinylbenzene phase obtained by separating the complexing agent is treated with an aqueous solution of an alkali such a NaOH, Ca(OH)2, etc. to effect the remarkable reduction of the amount of the complexing metal ion such as copper ion, silver ion, etc. and to achieve the sufficient purification of divinylbenzene.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY |
| title | PURIFICATION OF DIVINYLBENZENE |
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