METHOD AND APPARATUS FOR PRODUCING VANADIUM COMPOUND, AND METHOD AND APPARATUS FOR PRODUCING REDOX-FLOW BATTERY ELECTROLYTE
This production method includes: an alkali extraction step (step 12) of adding an alkali and water, or an alkali solution, to raw material ash containing an ammonium sulfate component, sulfuric acid, vanadium, and at least one other metal selected from nickel, iron, and magnesium, such that a pH of...
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| creator | MASAMOTO, Manabu AKAGI Daichi KITAGAWA, Yuta NISHINO, Takashi |
| description | This production method includes: an alkali extraction step (step 12) of adding an alkali and water, or an alkali solution, to raw material ash containing an ammonium sulfate component, sulfuric acid, vanadium, and at least one other metal selected from nickel, iron, and magnesium, such that a pH of 13 or higher is achieved, to obtain an alkali leachate; a solid-liquid separation step (step 13) of performing solid-liquid separation on the alkali leachate to obtain a leach filtrate containing vanadium; an evaporation concentration step (step 14) of evaporating and concentrating the leach filtrate to obtain a concentrated liquid; and a crystallization/solid-liquid separation step (step 15) of cooling and crystalizing the concentrated liquid and recovering a precipitate containing a vanadium compound. Another production method includes an alkali extraction step (step 32), a solid-liquid separation step (step 4), an evaporation concentration step (step 36), an alkali concentration adjustment step (step 37) of further adding an alkali or an alkali solution to a concentrated liquid to obtain a concentration-adjusted liquid, and a crystallization/solid-liquid separation step (step 38). |
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Another production method includes an alkali extraction step (step 32), a solid-liquid separation step (step 4), an evaporation concentration step (step 36), an alkali concentration adjustment step (step 37) of further adding an alkali or an alkali solution to a concentrated liquid to obtain a concentration-adjusted liquid, and a crystallization/solid-liquid separation step (step 38).</description><language>eng ; fre ; ger</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; DISPOSAL OF SOLID WASTE ; ELECTRICITY ; FERROUS OR NON-FERROUS ALLOYS ; INORGANIC CHEMISTRY ; METALLURGY ; PERFORMING OPERATIONS ; PRETREATMENT OF RAW MATERIALS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; PRODUCTION AND REFINING OF METALS ; RECLAMATION OF CONTAMINED SOIL SOIL ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</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=20220420&DB=EPODOC&CC=EP&NR=3984958A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220420&DB=EPODOC&CC=EP&NR=3984958A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MASAMOTO, Manabu</creatorcontrib><creatorcontrib>AKAGI Daichi</creatorcontrib><creatorcontrib>KITAGAWA, Yuta</creatorcontrib><creatorcontrib>NISHINO, Takashi</creatorcontrib><title>METHOD AND APPARATUS FOR PRODUCING VANADIUM COMPOUND, AND METHOD AND APPARATUS FOR PRODUCING REDOX-FLOW BATTERY ELECTROLYTE</title><description>This production method includes: an alkali extraction step (step 12) of adding an alkali and water, or an alkali solution, to raw material ash containing an ammonium sulfate component, sulfuric acid, vanadium, and at least one other metal selected from nickel, iron, and magnesium, such that a pH of 13 or higher is achieved, to obtain an alkali leachate; a solid-liquid separation step (step 13) of performing solid-liquid separation on the alkali leachate to obtain a leach filtrate containing vanadium; an evaporation concentration step (step 14) of evaporating and concentrating the leach filtrate to obtain a concentrated liquid; and a crystallization/solid-liquid separation step (step 15) of cooling and crystalizing the concentrated liquid and recovering a precipitate containing a vanadium compound. Another production method includes an alkali extraction step (step 32), a solid-liquid separation step (step 4), an evaporation concentration step (step 36), an alkali concentration adjustment step (step 37) of further adding an alkali or an alkali solution to a concentrated liquid to obtain a concentration-adjusted liquid, and a crystallization/solid-liquid separation step (step 38).</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>DISPOSAL OF SOLID WASTE</subject><subject>ELECTRICITY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>RECLAMATION OF CONTAMINED SOIL SOIL</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNizEKwkAQANNYiPqHfYApJApJud7tmUBye5x7aqoQ5KxEA7Hz84r4gBTDNDPz5N2QlKwB7Rfn0KOEIxj24DzroCp7gBNa1FVoQHHjOFi9_uUTTk-aL6mp-Qx7FCHfAtWkxHPdCi2T2a2_j3H19yIBQ6LKNA7PLo5Df42P-OrIZUW-LXY5brIJyQfdaDq7</recordid><startdate>20220420</startdate><enddate>20220420</enddate><creator>MASAMOTO, Manabu</creator><creator>AKAGI Daichi</creator><creator>KITAGAWA, Yuta</creator><creator>NISHINO, Takashi</creator><scope>EVB</scope></search><sort><creationdate>20220420</creationdate><title>METHOD AND APPARATUS FOR PRODUCING VANADIUM COMPOUND, AND METHOD AND APPARATUS FOR PRODUCING REDOX-FLOW BATTERY ELECTROLYTE</title><author>MASAMOTO, Manabu ; AKAGI Daichi ; KITAGAWA, Yuta ; NISHINO, Takashi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3984958A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2022</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>DISPOSAL OF SOLID WASTE</topic><topic>ELECTRICITY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>RECLAMATION OF CONTAMINED SOIL SOIL</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>MASAMOTO, Manabu</creatorcontrib><creatorcontrib>AKAGI Daichi</creatorcontrib><creatorcontrib>KITAGAWA, Yuta</creatorcontrib><creatorcontrib>NISHINO, Takashi</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MASAMOTO, Manabu</au><au>AKAGI Daichi</au><au>KITAGAWA, Yuta</au><au>NISHINO, Takashi</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD AND APPARATUS FOR PRODUCING VANADIUM COMPOUND, AND METHOD AND APPARATUS FOR PRODUCING REDOX-FLOW BATTERY ELECTROLYTE</title><date>2022-04-20</date><risdate>2022</risdate><abstract>This production method includes: an alkali extraction step (step 12) of adding an alkali and water, or an alkali solution, to raw material ash containing an ammonium sulfate component, sulfuric acid, vanadium, and at least one other metal selected from nickel, iron, and magnesium, such that a pH of 13 or higher is achieved, to obtain an alkali leachate; a solid-liquid separation step (step 13) of performing solid-liquid separation on the alkali leachate to obtain a leach filtrate containing vanadium; an evaporation concentration step (step 14) of evaporating and concentrating the leach filtrate to obtain a concentrated liquid; and a crystallization/solid-liquid separation step (step 15) of cooling and crystalizing the concentrated liquid and recovering a precipitate containing a vanadium compound. Another production method includes an alkali extraction step (step 32), a solid-liquid separation step (step 4), an evaporation concentration step (step 36), an alkali concentration adjustment step (step 37) of further adding an alkali or an alkali solution to a concentrated liquid to obtain a concentration-adjusted liquid, and a crystallization/solid-liquid separation step (step 38).</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F DISPOSAL OF SOLID WASTE ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PRETREATMENT OF RAW MATERIALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCTION AND REFINING OF METALS RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | METHOD AND APPARATUS FOR PRODUCING VANADIUM COMPOUND, AND METHOD AND APPARATUS FOR PRODUCING REDOX-FLOW BATTERY ELECTROLYTE |
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