Refining method of lithium carbonate containing aluminum and fluorine
The invention discloses a refining method of lithium carbonate containing aluminum and fluorine. The refining method comprises the following steps: S1, dissolving; s2, adjusting the pH value; s3, filtering is carried out; s4, removing impurities; s5, pulping; and S6, separating and drying. The metho...
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| creator | YUAN MAOQIANG ZHANG ZHIYONG SUN YONGDA |
| description | The invention discloses a refining method of lithium carbonate containing aluminum and fluorine. The refining method comprises the following steps: S1, dissolving; s2, adjusting the pH value; s3, filtering is carried out; s4, removing impurities; s5, pulping; and S6, separating and drying. The method has the advantages that aluminum in the aluminum-fluorine-containing crude lithium carbonate is reasonably utilized, after the crude lithium carbonate is dissolved with acid, part of fluorine is precipitated into cryolite (Na3AlF6), then the alkaline solution is added, excessive aluminum generates active aluminum hydroxide which has a very strong adsorption effect on fluorine, the fluorine removal effect is achieved, then filtering and washing are conducted, aluminum-fluorine residues are separated out, and the aluminum-fluorine-containing crude lithium carbonate is obtained. Afterwards, the aluminum and fluorine residues and a small amount of lithium carried in the aluminum and fluorine residues are recycled, li |
| format | Patent |
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The refining method comprises the following steps: S1, dissolving; s2, adjusting the pH value; s3, filtering is carried out; s4, removing impurities; s5, pulping; and S6, separating and drying. The method has the advantages that aluminum in the aluminum-fluorine-containing crude lithium carbonate is reasonably utilized, after the crude lithium carbonate is dissolved with acid, part of fluorine is precipitated into cryolite (Na3AlF6), then the alkaline solution is added, excessive aluminum generates active aluminum hydroxide which has a very strong adsorption effect on fluorine, the fluorine removal effect is achieved, then filtering and washing are conducted, aluminum-fluorine residues are separated out, and the aluminum-fluorine-containing crude lithium carbonate is obtained. Afterwards, the aluminum and fluorine residues and a small amount of lithium carried in the aluminum and fluorine residues are recycled, li</description><language>chi ; eng</language><subject>CHEMISTRY ; COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM ; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; INORGANIC CHEMISTRY ; METALLURGY</subject><creationdate>2024</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=20241011&DB=EPODOC&CC=CN&NR=118754168A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20241011&DB=EPODOC&CC=CN&NR=118754168A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YUAN MAOQIANG</creatorcontrib><creatorcontrib>ZHANG ZHIYONG</creatorcontrib><creatorcontrib>SUN YONGDA</creatorcontrib><title>Refining method of lithium carbonate containing aluminum and fluorine</title><description>The invention discloses a refining method of lithium carbonate containing aluminum and fluorine. The refining method comprises the following steps: S1, dissolving; s2, adjusting the pH value; s3, filtering is carried out; s4, removing impurities; s5, pulping; and S6, separating and drying. The method has the advantages that aluminum in the aluminum-fluorine-containing crude lithium carbonate is reasonably utilized, after the crude lithium carbonate is dissolved with acid, part of fluorine is precipitated into cryolite (Na3AlF6), then the alkaline solution is added, excessive aluminum generates active aluminum hydroxide which has a very strong adsorption effect on fluorine, the fluorine removal effect is achieved, then filtering and washing are conducted, aluminum-fluorine residues are separated out, and the aluminum-fluorine-containing crude lithium carbonate is obtained. Afterwards, the aluminum and fluorine residues and a small amount of lithium carried in the aluminum and fluorine residues are recycled, li</description><subject>CHEMISTRY</subject><subject>COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM</subject><subject>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHANSk3LzMvMS1fITS3JyE9RyE9TyMksycgszVVITixKys9LLElVSM7PK0mEKEvMKc3NzAPKJualKKTllOYXZeal8jCwpiXmFKfyQmluBkU31xBnD93Ugvz41OKCxOTUvNSSeGc_Q0MLc1MTQzMLR2Ni1AAAGMczmg</recordid><startdate>20241011</startdate><enddate>20241011</enddate><creator>YUAN MAOQIANG</creator><creator>ZHANG ZHIYONG</creator><creator>SUN YONGDA</creator><scope>EVB</scope></search><sort><creationdate>20241011</creationdate><title>Refining method of lithium carbonate containing aluminum and fluorine</title><author>YUAN MAOQIANG ; ZHANG ZHIYONG ; SUN YONGDA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN118754168A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM</topic><topic>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><toplevel>online_resources</toplevel><creatorcontrib>YUAN MAOQIANG</creatorcontrib><creatorcontrib>ZHANG ZHIYONG</creatorcontrib><creatorcontrib>SUN YONGDA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YUAN MAOQIANG</au><au>ZHANG ZHIYONG</au><au>SUN YONGDA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Refining method of lithium carbonate containing aluminum and fluorine</title><date>2024-10-11</date><risdate>2024</risdate><abstract>The invention discloses a refining method of lithium carbonate containing aluminum and fluorine. The refining method comprises the following steps: S1, dissolving; s2, adjusting the pH value; s3, filtering is carried out; s4, removing impurities; s5, pulping; and S6, separating and drying. The method has the advantages that aluminum in the aluminum-fluorine-containing crude lithium carbonate is reasonably utilized, after the crude lithium carbonate is dissolved with acid, part of fluorine is precipitated into cryolite (Na3AlF6), then the alkaline solution is added, excessive aluminum generates active aluminum hydroxide which has a very strong adsorption effect on fluorine, the fluorine removal effect is achieved, then filtering and washing are conducted, aluminum-fluorine residues are separated out, and the aluminum-fluorine-containing crude lithium carbonate is obtained. Afterwards, the aluminum and fluorine residues and a small amount of lithium carried in the aluminum and fluorine residues are recycled, li</abstract><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 COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY |
| title | Refining method of lithium carbonate containing aluminum and fluorine |
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