NACL RECOVERY DEVICE BY ELECTRODIALYSIS
PURPOSE:To separate and recover high-purity Nail from a liq. mixture of Na, Ca, Al and SO4 by arranging a univalent ion permselective cation-exchange membrane, univalent ion permselective anion-exchange membrane, non- permselective cation-exchange membrane and non-permselective anion-exchange membra...
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| creator | YOSHIOKA CHIKAKO KUROKAWA HIDEAKI |
| description | PURPOSE:To separate and recover high-purity Nail from a liq. mixture of Na, Ca, Al and SO4 by arranging a univalent ion permselective cation-exchange membrane, univalent ion permselective anion-exchange membrane, non- permselective cation-exchange membrane and non-permselective anion-exchange membrane in this order as the membranes. CONSTITUTION:A liq. mixture 31 is introduced into a desalted liq. circulating line by a pump 21 and sent to an electrodialysis cell 1, and a DC voltage is impressed thereon. Consequently, the Na in the liq. mixture sent to the desalting chambers 16 and 18 is permeated through a univalent ion permselective cation- exchange membrane 12 and tune Cl through a univalent ion permselective anion- exchange membrane 13 and both are introduced into a concentration chambers 17, and NaCl concentrated to high purity is recovered. Meanwhile, the Ca in the liq. mixture 31 sent to desalting chambers 18 and 20 is permeated through a non-permselective cation-exchange membrane 1 4 and the SO4 through a non-permselective membrane 15 and both are introduced into a concentration chamber 19, and CaSO4 is concentrated. The NaCl concd. liq. 34 is introduced into an NaCl concd. liq. circulating line by a concentration pump 22, and NaCl is discharged. |
| format | Patent |
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CONSTITUTION:A liq. mixture 31 is introduced into a desalted liq. circulating line by a pump 21 and sent to an electrodialysis cell 1, and a DC voltage is impressed thereon. Consequently, the Na in the liq. mixture sent to the desalting chambers 16 and 18 is permeated through a univalent ion permselective cation- exchange membrane 12 and tune Cl through a univalent ion permselective anion- exchange membrane 13 and both are introduced into a concentration chambers 17, and NaCl concentrated to high purity is recovered. Meanwhile, the Ca in the liq. mixture 31 sent to desalting chambers 18 and 20 is permeated through a non-permselective cation-exchange membrane 1 4 and the SO4 through a non-permselective membrane 15 and both are introduced into a concentration chamber 19, and CaSO4 is concentrated. The NaCl concd. liq. 34 is introduced into an NaCl concd. liq. circulating line by a concentration pump 22, and NaCl is discharged.</description><edition>6</edition><language>eng</language><subject>CHEMISTRY ; COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM ; INORGANIC CHEMISTRY ; METALLURGY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TRANSPORTING</subject><creationdate>1995</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=19950620&DB=EPODOC&CC=JP&NR=H07155563A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950620&DB=EPODOC&CC=JP&NR=H07155563A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YOSHIOKA CHIKAKO</creatorcontrib><creatorcontrib>KUROKAWA HIDEAKI</creatorcontrib><title>NACL RECOVERY DEVICE BY ELECTRODIALYSIS</title><description>PURPOSE:To separate and recover high-purity Nail from a liq. mixture of Na, Ca, Al and SO4 by arranging a univalent ion permselective cation-exchange membrane, univalent ion permselective anion-exchange membrane, non- permselective cation-exchange membrane and non-permselective anion-exchange membrane in this order as the membranes. CONSTITUTION:A liq. mixture 31 is introduced into a desalted liq. circulating line by a pump 21 and sent to an electrodialysis cell 1, and a DC voltage is impressed thereon. Consequently, the Na in the liq. mixture sent to the desalting chambers 16 and 18 is permeated through a univalent ion permselective cation- exchange membrane 12 and tune Cl through a univalent ion permselective anion- exchange membrane 13 and both are introduced into a concentration chambers 17, and NaCl concentrated to high purity is recovered. Meanwhile, the Ca in the liq. mixture 31 sent to desalting chambers 18 and 20 is permeated through a non-permselective cation-exchange membrane 1 4 and the SO4 through a non-permselective membrane 15 and both are introduced into a concentration chamber 19, and CaSO4 is concentrated. The NaCl concd. liq. 34 is introduced into an NaCl concd. liq. circulating line by a concentration pump 22, and NaCl is discharged.</description><subject>CHEMISTRY</subject><subject>COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1995</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFD3c3T2UQhydfYPcw2KVHBxDfN0dlVwilRw9XF1Dgnyd_F09IkM9gzmYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxXgEeBuaGpqamZsaOxsSoAQDrXyQY</recordid><startdate>19950620</startdate><enddate>19950620</enddate><creator>YOSHIOKA CHIKAKO</creator><creator>KUROKAWA HIDEAKI</creator><scope>EVB</scope></search><sort><creationdate>19950620</creationdate><title>NACL RECOVERY DEVICE BY ELECTRODIALYSIS</title><author>YOSHIOKA CHIKAKO ; KUROKAWA HIDEAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH07155563A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1995</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>YOSHIOKA CHIKAKO</creatorcontrib><creatorcontrib>KUROKAWA HIDEAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YOSHIOKA CHIKAKO</au><au>KUROKAWA HIDEAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NACL RECOVERY DEVICE BY ELECTRODIALYSIS</title><date>1995-06-20</date><risdate>1995</risdate><abstract>PURPOSE:To separate and recover high-purity Nail from a liq. mixture of Na, Ca, Al and SO4 by arranging a univalent ion permselective cation-exchange membrane, univalent ion permselective anion-exchange membrane, non- permselective cation-exchange membrane and non-permselective anion-exchange membrane in this order as the membranes. CONSTITUTION:A liq. mixture 31 is introduced into a desalted liq. circulating line by a pump 21 and sent to an electrodialysis cell 1, and a DC voltage is impressed thereon. Consequently, the Na in the liq. mixture sent to the desalting chambers 16 and 18 is permeated through a univalent ion permselective cation- exchange membrane 12 and tune Cl through a univalent ion permselective anion- exchange membrane 13 and both are introduced into a concentration chambers 17, and NaCl concentrated to high purity is recovered. Meanwhile, the Ca in the liq. mixture 31 sent to desalting chambers 18 and 20 is permeated through a non-permselective cation-exchange membrane 1 4 and the SO4 through a non-permselective membrane 15 and both are introduced into a concentration chamber 19, and CaSO4 is concentrated. The NaCl concd. liq. 34 is introduced into an NaCl concd. liq. circulating line by a concentration pump 22, and NaCl is discharged.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING |
| title | NACL RECOVERY DEVICE BY ELECTRODIALYSIS |
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