METHOD FOR PRODUCING PHENOLS
To provide a method for producing phenols that enables sufficient separation between oil and water in an oil-water separation step in the phenol production method.SOLUTION: A method for producing phenols includes: a neutralization step for neutralizing an acid-decomposed cumene hydroperoxide reactio...
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| creator | TAKAHASHI TAKESHI TANNO YOSHIHIRO |
| description | To provide a method for producing phenols that enables sufficient separation between oil and water in an oil-water separation step in the phenol production method.SOLUTION: A method for producing phenols includes: a neutralization step for neutralizing an acid-decomposed cumene hydroperoxide reaction solution with an alkali; an oil-water separation step for separating the neutralized reaction solution into an oil phase liquid and an aqueous phase liquid; and a washing step for mixing the oil phase liquid with washing water to wash it. In the washing step, the mixture of the oil phase liquid and the washing water contains a metal element, excluding alkali metals of Group 1 in the periodic table, of 0.1 mass ppm or more and 25 mass ppm or less.SELECTED DRAWING: Figure 1
【課題】フェノール製造方法の油水分離工程における油水分離を良好に行うことができるフェノールの製造方法を提供する。【解決手段】クメンハイドロパーオキシドの酸分解反応液をアルカリで中和する中和工程、中和された反応液を油相液と水相液に分離する油水分離工程、前記油相液に水洗水を混合して洗浄する洗浄工程、を有するフェノールの製造方法において、前記洗浄工程における油相液と水洗水の混合液が、周期表第１族に属するアルカリ金属を除いた金属元素を０．１質量ｐｐｍ以上２５質量ｐｐｍ以下の範囲内で含有する、フェノールの製造方法。【選択図】図１ |
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【課題】フェノール製造方法の油水分離工程における油水分離を良好に行うことができるフェノールの製造方法を提供する。【解決手段】クメンハイドロパーオキシドの酸分解反応液をアルカリで中和する中和工程、中和された反応液を油相液と水相液に分離する油水分離工程、前記油相液に水洗水を混合して洗浄する洗浄工程、を有するフェノールの製造方法において、前記洗浄工程における油相液と水洗水の混合液が、周期表第１族に属するアルカリ金属を除いた金属元素を０．１質量ｐｐｍ以上２５質量ｐｐｍ以下の範囲内で含有する、フェノールの製造方法。【選択図】図１</description><language>eng ; jpn</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY</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=20230526&DB=EPODOC&CC=JP&NR=2023073796A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230526&DB=EPODOC&CC=JP&NR=2023073796A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKAHASHI TAKESHI</creatorcontrib><creatorcontrib>TANNO YOSHIHIRO</creatorcontrib><title>METHOD FOR PRODUCING PHENOLS</title><description>To provide a method for producing phenols that enables sufficient separation between oil and water in an oil-water separation step in the phenol production method.SOLUTION: A method for producing phenols includes: a neutralization step for neutralizing an acid-decomposed cumene hydroperoxide reaction solution with an alkali; an oil-water separation step for separating the neutralized reaction solution into an oil phase liquid and an aqueous phase liquid; and a washing step for mixing the oil phase liquid with washing water to wash it. In the washing step, the mixture of the oil phase liquid and the washing water contains a metal element, excluding alkali metals of Group 1 in the periodic table, of 0.1 mass ppm or more and 25 mass ppm or less.SELECTED DRAWING: Figure 1
【課題】フェノール製造方法の油水分離工程における油水分離を良好に行うことができるフェノールの製造方法を提供する。【解決手段】クメンハイドロパーオキシドの酸分解反応液をアルカリで中和する中和工程、中和された反応液を油相液と水相液に分離する油水分離工程、前記油相液に水洗水を混合して洗浄する洗浄工程、を有するフェノールの製造方法において、前記洗浄工程における油相液と水洗水の混合液が、周期表第１族に属するアルカリ金属を除いた金属元素を０．１質量ｐｐｍ以上２５質量ｐｐｍ以下の範囲内で含有する、フェノールの製造方法。【選択図】図１</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJDxdQ3x8HdRcPMPUggI8ncJdfb0c1cI8HD18_cJ5mFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgZGxgbmxuaWZo7GRCkCALTaIVE</recordid><startdate>20230526</startdate><enddate>20230526</enddate><creator>TAKAHASHI TAKESHI</creator><creator>TANNO YOSHIHIRO</creator><scope>EVB</scope></search><sort><creationdate>20230526</creationdate><title>METHOD FOR PRODUCING PHENOLS</title><author>TAKAHASHI TAKESHI ; TANNO YOSHIHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2023073796A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2023</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKAHASHI TAKESHI</creatorcontrib><creatorcontrib>TANNO YOSHIHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKAHASHI TAKESHI</au><au>TANNO YOSHIHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR PRODUCING PHENOLS</title><date>2023-05-26</date><risdate>2023</risdate><abstract>To provide a method for producing phenols that enables sufficient separation between oil and water in an oil-water separation step in the phenol production method.SOLUTION: A method for producing phenols includes: a neutralization step for neutralizing an acid-decomposed cumene hydroperoxide reaction solution with an alkali; an oil-water separation step for separating the neutralized reaction solution into an oil phase liquid and an aqueous phase liquid; and a washing step for mixing the oil phase liquid with washing water to wash it. In the washing step, the mixture of the oil phase liquid and the washing water contains a metal element, excluding alkali metals of Group 1 in the periodic table, of 0.1 mass ppm or more and 25 mass ppm or less.SELECTED DRAWING: Figure 1
【課題】フェノール製造方法の油水分離工程における油水分離を良好に行うことができるフェノールの製造方法を提供する。【解決手段】クメンハイドロパーオキシドの酸分解反応液をアルカリで中和する中和工程、中和された反応液を油相液と水相液に分離する油水分離工程、前記油相液に水洗水を混合して洗浄する洗浄工程、を有するフェノールの製造方法において、前記洗浄工程における油相液と水洗水の混合液が、周期表第１族に属するアルカリ金属を除いた金属元素を０．１質量ｐｐｍ以上２５質量ｐｐｍ以下の範囲内で含有する、フェノールの製造方法。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| title | METHOD FOR PRODUCING PHENOLS |
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