Purification method of ferrous sulfate as byproduct of titanium dioxide
The invention discloses a purification method of ferrous sulfate as a byproduct of titanium dioxide. The ferrous sulfate as the byproduct of the titanium dioxide contains titanium, magnesium and manganese impurity elements. The preparation method comprises the following steps: (1) dissolving the fer...
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| creator | ZHOU ZHENHANG LYU DEBIN ZHOU TIANMING SUN ZHENGFAN |
| description | The invention discloses a purification method of ferrous sulfate as a byproduct of titanium dioxide. The ferrous sulfate as the byproduct of the titanium dioxide contains titanium, magnesium and manganese impurity elements. The preparation method comprises the following steps: (1) dissolving the ferrous sulfate as the byproduct of the titanium dioxide with water to obtain a ferrous sulfate solution; (2) adding iron powder into the ferrous sulfate solution obtained in the step (1), heating to 90 DEG C or above, and adding phosphoric acid till the pH value of the solution is up to 3 to 4.5; (3)adding sulfide and fluoride into the solution obtained in the step (2), and stirring; (4) adding a flocculant into the solution obtained in the step (3), and then removing flocculating sediment to obtain a purified ferrous sulfate solution. The impurity element content of the extracted ferrous sulfate can meet the requirement of producing battery grade iron phosphate.
本发明公开种钛白粉副产物硫酸亚铁的提纯方法。所述钛白粉副产物硫酸亚铁含钛、镁、锰杂质元素，包括如下步骤：（1 |
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本发明公开种钛白粉副产物硫酸亚铁的提纯方法。所述钛白粉副产物硫酸亚铁含钛、镁、锰杂质元素，包括如下步骤：（1</description><language>chi ; eng</language><subject>CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS ; INORGANIC CHEMISTRY ; METALLURGY</subject><creationdate>2018</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=20180518&DB=EPODOC&CC=CN&NR=108046337A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180518&DB=EPODOC&CC=CN&NR=108046337A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHOU ZHENHANG</creatorcontrib><creatorcontrib>LYU DEBIN</creatorcontrib><creatorcontrib>ZHOU TIANMING</creatorcontrib><creatorcontrib>SUN ZHENGFAN</creatorcontrib><title>Purification method of ferrous sulfate as byproduct of titanium dioxide</title><description>The invention discloses a purification method of ferrous sulfate as a byproduct of titanium dioxide. The ferrous sulfate as the byproduct of the titanium dioxide contains titanium, magnesium and manganese impurity elements. The preparation method comprises the following steps: (1) dissolving the ferrous sulfate as the byproduct of the titanium dioxide with water to obtain a ferrous sulfate solution; (2) adding iron powder into the ferrous sulfate solution obtained in the step (1), heating to 90 DEG C or above, and adding phosphoric acid till the pH value of the solution is up to 3 to 4.5; (3)adding sulfide and fluoride into the solution obtained in the step (2), and stirring; (4) adding a flocculant into the solution obtained in the step (3), and then removing flocculating sediment to obtain a purified ferrous sulfate solution. The impurity element content of the extracted ferrous sulfate can meet the requirement of producing battery grade iron phosphate.
本发明公开种钛白粉副产物硫酸亚铁的提纯方法。所述钛白粉副产物硫酸亚铁含钛、镁、锰杂质元素，包括如下步骤：（1</description><subject>CHEMISTRY</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAPKC3KTMtMTizJzM9TyE0tychPUchPU0hLLSrKLy1WKC7NSUssSVVILFZIqiwoyk8pTS4ByZdkliTmZZbmKqRk5ldkpqTyMLCmJeYUp_JCaW4GRTfXEGcP3dSC_PjU4oLE5NS81JJ4Zz9DAwsDEzNjY3NHY2LUAACjZTRh</recordid><startdate>20180518</startdate><enddate>20180518</enddate><creator>ZHOU ZHENHANG</creator><creator>LYU DEBIN</creator><creator>ZHOU TIANMING</creator><creator>SUN ZHENGFAN</creator><scope>EVB</scope></search><sort><creationdate>20180518</creationdate><title>Purification method of ferrous sulfate as byproduct of titanium dioxide</title><author>ZHOU ZHENHANG ; LYU DEBIN ; ZHOU TIANMING ; SUN ZHENGFAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN108046337A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2018</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><toplevel>online_resources</toplevel><creatorcontrib>ZHOU ZHENHANG</creatorcontrib><creatorcontrib>LYU DEBIN</creatorcontrib><creatorcontrib>ZHOU TIANMING</creatorcontrib><creatorcontrib>SUN ZHENGFAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZHOU ZHENHANG</au><au>LYU DEBIN</au><au>ZHOU TIANMING</au><au>SUN ZHENGFAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Purification method of ferrous sulfate as byproduct of titanium dioxide</title><date>2018-05-18</date><risdate>2018</risdate><abstract>The invention discloses a purification method of ferrous sulfate as a byproduct of titanium dioxide. The ferrous sulfate as the byproduct of the titanium dioxide contains titanium, magnesium and manganese impurity elements. The preparation method comprises the following steps: (1) dissolving the ferrous sulfate as the byproduct of the titanium dioxide with water to obtain a ferrous sulfate solution; (2) adding iron powder into the ferrous sulfate solution obtained in the step (1), heating to 90 DEG C or above, and adding phosphoric acid till the pH value of the solution is up to 3 to 4.5; (3)adding sulfide and fluoride into the solution obtained in the step (2), and stirring; (4) adding a flocculant into the solution obtained in the step (3), and then removing flocculating sediment to obtain a purified ferrous sulfate solution. The impurity element content of the extracted ferrous sulfate can meet the requirement of producing battery grade iron phosphate.
本发明公开种钛白粉副产物硫酸亚铁的提纯方法。所述钛白粉副产物硫酸亚铁含钛、镁、锰杂质元素，包括如下步骤：（1</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY |
| title | Purification method of ferrous sulfate as byproduct of titanium dioxide |
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