Development of a process for the production of a high hafnium concentrate
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Ames National Laboratory is a government-owned, contractor-operated national laboratory of the U.S. Department of Energy (DOE), operated by and located on the campus of Iowa State University in Ames, Iowa.
For more than 70 years, the Ames National Laboratory has successfully partnered with Iowa State University, and is unique among the 17 DOE laboratories in that it is physically located on the campus of a major research university. Many of the scientists and administrators at the Laboratory also hold faculty positions at the University and the Laboratory has access to both undergraduate and graduate student talent.
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Abstract
An investigation was made to determine a method for producing a high hafnium concentrate. The final product was to be a by-product from a recently developed adsorption process for the production of pure zirconium.
Four experimental runs are reported. Each run consisted of the adsorption of hafnium and zirconium tetrachlorides from methanol solution on activated silica gel~ and the subsequent stripping of the gel using a methanol-hydrogen chloride strip solution and~ finally~ a sulfuric acid strip solution.