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U.S. Department of Energy
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ANALYTICAL METHOD FOR THE DETERMINATION OF SILICON, IRON, ALUMINUM, CALCIUM, AND MAGNESIUM IN BERYL ORE

Technical Report ·
OSTI ID:4797171
A weighed ore sample is fused with alkali carbonates. After dissolution of the cooled melt in water and sulfuric acid, the following process is carried out. For Si, the solution of the ore is evaporated to fumes of sulfuric acid. Silica is filtered out and determined by the HF acid volatilization procedure. For Fe, the cupferrate is separated from the filtrate of the preceding filtration, and determined volumetrically by titration with potassium dichromate solution. For Al, the Al is separated with Be as the hydroxide. The Al is then separated as the oxinate, and is determined gravimetrically. For Ca, the Ca is separated as the oxalate and determined in sulfuric acid solution by titration with potassium permanganate solution. The Mg is separated as magnesium ammonium phosphate and ignited to magnesium pyrophosphate, in which form it is weighed. Each of the above operations is carried out successively on a single sample. The method has been used on ores containing 10 to 13% beryllium oxide. (T.F.H.)
Research Organization:
United Kindgom Atomic Energy Authority. Production Group, Springfields, Lancs, England
NSA Number:
NSA-16-012954
OSTI ID:
4797171
Report Number(s):
PG-Report-267
Country of Publication:
Country unknown/Code not available
Language:
English