Method for recycling 4, 4-dinitrodiphenyl ether by-product
The invention provides a 4, 4-dinitrodiphenyl ether byproduct recovery treatment method, and belongs to the technical field of organic synthesis. According to the method, the pH value is adjusted to 3-4 to remove substances capable of reacting with acid in the byproduct salt, the ferrous sulfate and...
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| creator | WANG FEIYANG SHAO SHUAI GUO SHAOKANG ZHANG YUNTANG |
| description | The invention provides a 4, 4-dinitrodiphenyl ether byproduct recovery treatment method, and belongs to the technical field of organic synthesis. According to the method, the pH value is adjusted to 3-4 to remove substances capable of reacting with acid in the byproduct salt, the ferrous sulfate and the first activated carbon are used for decoloring and removing the color of the 4, 4-dinitrodiphenyl ether material, then the pH value is adjusted to 6-8 to remove the ferrous sulfate, and then secondary decoloring is performed, so that the obtained solid salt is white; the hydrogen peroxide is used for removing organic matters in the reaction, the resin column elution ensures that the parachloronitrobenzene, the sodium p-nitrophenolate and the DNP organic matters are completely removed, finally, the solid salt with the sodium chloride content being greater than or equal to 99.1 g/100g and the TOC (total organic carbon) being less than 50mg/Kg is obtained, the obtained solid salt does not have the smell of p-nitr |
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According to the method, the pH value is adjusted to 3-4 to remove substances capable of reacting with acid in the byproduct salt, the ferrous sulfate and the first activated carbon are used for decoloring and removing the color of the 4, 4-dinitrodiphenyl ether material, then the pH value is adjusted to 6-8 to remove the ferrous sulfate, and then secondary decoloring is performed, so that the obtained solid salt is white; the hydrogen peroxide is used for removing organic matters in the reaction, the resin column elution ensures that the parachloronitrobenzene, the sodium p-nitrophenolate and the DNP organic matters are completely removed, finally, the solid salt with the sodium chloride content being greater than or equal to 99.1 g/100g and the TOC (total organic carbon) being less than 50mg/Kg is obtained, the obtained solid salt does not have the smell of p-nitr</description><language>chi ; eng</language><subject>CHEMISTRY ; COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM ; INORGANIC CHEMISTRY ; METALLURGY</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=20230825&DB=EPODOC&CC=CN&NR=116639710A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230825&DB=EPODOC&CC=CN&NR=116639710A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG FEIYANG</creatorcontrib><creatorcontrib>SHAO SHUAI</creatorcontrib><creatorcontrib>GUO SHAOKANG</creatorcontrib><creatorcontrib>ZHANG YUNTANG</creatorcontrib><title>Method for recycling 4, 4-dinitrodiphenyl ether by-product</title><description>The invention provides a 4, 4-dinitrodiphenyl ether byproduct recovery treatment method, and belongs to the technical field of organic synthesis. 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| subjects | CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM INORGANIC CHEMISTRY METALLURGY |
| title | Method for recycling 4, 4-dinitrodiphenyl ether by-product |
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