Green extraction method of ionic rare earth ore calcium salt system
The invention discloses a green extraction method of an ionic rare earth ore calcium salt system. Calcium salt is taken as an ore leaching agent, calcium oxide is taken as a purification impurity removal agent, and calcium oxide is taken as a precipitant; the ore leaching agent, chlorine removal and...
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| creator | NIU FEI HE XIAO LI ZAOFA CAI ZHIHUA XU RUIGAO LI XINGLAN HE HUAJIN YE XINYU ZOU GUITIAN LI CHUN LAN QIAOFA XU XING ZHONG HUAYUN LIU CONG ZHUANG XUETAO YANG YOUMING |
| description | The invention discloses a green extraction method of an ionic rare earth ore calcium salt system. Calcium salt is taken as an ore leaching agent, calcium oxide is taken as a purification impurity removal agent, and calcium oxide is taken as a precipitant; the ore leaching agent, chlorine removal and heavy metal elements are recovered in a form of Friedel's salt; no ammonia nitrogen and high-salt wastewater is discharged in the whole process, the process is smooth, the product impurity content is low, and after ore closing, the mining area environment influence is small, and green and environment-friendly mining of ionic rare earth can be implemented. In addition, the method takes calcium chloride as a main component, a small amount of acid regulators such as aluminum chloride, ferric chloride and ammonium chloride are added, the formed composite salt ore leaching agent is a main component of ore soil, and compared with an ore leaching system with ammonium salt, magnesium salt, sodium salt and potassium salt a |
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Calcium salt is taken as an ore leaching agent, calcium oxide is taken as a purification impurity removal agent, and calcium oxide is taken as a precipitant; the ore leaching agent, chlorine removal and heavy metal elements are recovered in a form of Friedel's salt; no ammonia nitrogen and high-salt wastewater is discharged in the whole process, the process is smooth, the product impurity content is low, and after ore closing, the mining area environment influence is small, and green and environment-friendly mining of ionic rare earth can be implemented. In addition, the method takes calcium chloride as a main component, a small amount of acid regulators such as aluminum chloride, ferric chloride and ammonium chloride are added, the formed composite salt ore leaching agent is a main component of ore soil, and compared with an ore leaching system with ammonium salt, magnesium salt, sodium salt and potassium salt a</description><language>chi ; eng</language><subject>CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2021</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=20210105&DB=EPODOC&CC=CN&NR=112176209A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210105&DB=EPODOC&CC=CN&NR=112176209A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NIU FEI</creatorcontrib><creatorcontrib>HE XIAO</creatorcontrib><creatorcontrib>LI ZAOFA</creatorcontrib><creatorcontrib>CAI ZHIHUA</creatorcontrib><creatorcontrib>XU RUIGAO</creatorcontrib><creatorcontrib>LI XINGLAN</creatorcontrib><creatorcontrib>HE HUAJIN</creatorcontrib><creatorcontrib>YE XINYU</creatorcontrib><creatorcontrib>ZOU GUITIAN</creatorcontrib><creatorcontrib>LI CHUN</creatorcontrib><creatorcontrib>LAN QIAOFA</creatorcontrib><creatorcontrib>XU XING</creatorcontrib><creatorcontrib>ZHONG HUAYUN</creatorcontrib><creatorcontrib>LIU CONG</creatorcontrib><creatorcontrib>ZHUANG XUETAO</creatorcontrib><creatorcontrib>YANG YOUMING</creatorcontrib><title>Green extraction method of ionic rare earth ore calcium salt system</title><description>The invention discloses a green extraction method of an ionic rare earth ore calcium salt system. 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| subjects | CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Green extraction method of ionic rare earth ore calcium salt system |
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