بيت /Ion Exchange Us5019362
The present disclosure relates to processes for recovering rare earth elements from various materials. The processes can comprise leaching the at least one material ...
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For the cation ion exchange resin, an eluant solution containing EDTA is provided. A plurality of columns containing a strong acid ion exchange resin is saturated with the eluant solution, and a feed solution comprising eluant solution and the mixture of gadolinium isotopes is charged to the first of the plurality of saturated columns.
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Mineral values, particularly uranium, are recovered from subsurface earth formations containing the same, as well as cations which form precipitates with sulfuric ...
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exchange method purification USPatent: US, 1991. 稀有金属与硬质合金,2002, 30( 3438. 离子交换与吸附,1998, 14 ...
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The present disclosure relates to processes for recovering rare earth elements from an aluminumbearing material. The processes can comprise leaching the aluminum ...
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et a1．Method of scandi um and Ianthani desseparati onfrom el ementi mpuri ti es[P]．Russi an Patent：RU,1995．Ludwi g R,Inoue K,Yamato T．Sol ventextracti on behavi our ofeal i xarenetype eyel ophanes towards tri val ent La,Nd,Eu,Er,and Yb[J ]．Sol vent Extr Ion Exeh,1993,1l 。
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Processes for preparing alumina and magnesium chloride by ... for example to ions comprising to at least one type of iron ion ... Such an ion/exchange type ...
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A process is disclosed for recovering tungsten, iron, and manganese from tungsten bearing material. The process involves digesting the material in a sufficient amount ...
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The present disclosure relates to processes for recovering rare earth elements from an aluminumbearing material. The processes can comprise leaching the aluminum ...
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1. A process for purifying aluminum ions comprising: leaching an aluminum containing material chosen from an aluminumcontaining ore, a recycled industrial aluminum ...
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United States Patent US Note: If you have problems viewing the PDF, please make sure you have the latest version of Adobe Acrobat. [ PDF help]
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The ion exchange column is rinsed with a mineral acid and the scandium is removed by ... US A: Publikationstyp ... Ion exchange method for the purification of ...
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There are provided processes for extracting aluminum ions from aluminous ores and for preparing alumina. Such processes can be used with various types of aluminous ...
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There are provided methods for separating iron ions from ... there is provided a method for separating iron ions from aluminum ions ... Ion exchange method ...
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A process is disclosed for purifying scandium from an acid solution containing scandium and various impurities. The process involves mixing the acid solution with a ...
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A process is disclosed for recovering tungsten, iron, and manganese from tungsten bearing material. The process involves digesting the material in a sufficient amount ...
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Ion exchange method for the recovery of scandium ... The ion exchange resin having the scandium absorbed thereon from step 4 is rinsed with a ... US * 18. Okt ...
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Patenten Try the new Google ... For example, the obtained AlCl 3 can be purified by means of an ion exchange resin. For example, ... US: 18 okt 1989: 28 mei 1991:
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There are provided processes for extracting aluminum ions from aluminous ... it can be valorized and be used again either as an ion exchange ... US: 18 . Okt ...
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There are provided processes for preparing alumina. ... A ion exchange technique is also capable of achieving same results as polytrimethylene terephtalate ...
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Water treatment process for nitrate removal An ion exchange process utilizes a chemical system in which sodium nitrate is reacted with an acidic solution of urea to ...
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More particularly, this invention relates to an ion exchange method for separation of scandium and thorium. background of the invention Scandium and thorium are two metals characterized by a high charge to radius ratio.
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A method for a quantitative separation of scandium from thorium comprises adsorption of both metals on a cation exchange resin followed by selective elution of ...
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