THE DETERMINATION OF GOLD, PLATINUM AND PALLADIUM IN PITCHBLENDE ORE AND BARIUM SULPHATE CONCENTRATES FROM PITCHBLENDE ORE
Technical Report
·
OSTI ID:4234980
The sample is fused with a silicate flux containing a reducing agent and litharge. The lead button produced is scorified and cupelled leaving a bead of precious metal. The bead is parted with nitric acid and the gold annealed and weighed. The gold is dissolved in aqua regia and combined with the parting liquid and the silver chloride filtered off. Gold is separated by ethyl acetate extraction and palladium by chloroform extrac tion of the dimethyl glyoxime complex. Platinum is then removed by ethyl acetate extraction after reduction with stannous chloride. The platinum is back extracted with sodium chloride solution and titrated with dithizone. The palladium extract is wet oxidized and the palladium titrated with dithizone. The method is suitable for gold in amounts greater than 10 ppm and for platinum and palladium in amounts greater than 1 ppm. (auth)
- Research Organization:
- United Kingdom Atomic Energy Authority. Industrial Group. Springfields Works, Springfields, Lancs, England
- NSA Number:
- NSA-13-015960
- OSTI ID:
- 4234980
- Report Number(s):
- SCS-M-96
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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ANALYTICAL METHOD FOR THE DETERMINATION OF GOLD, PLATINUM, PALLADIUM IN PITCHBLENDE ORE (above 40% U$sub 3$O$sub 8$) AND BARIUM SULPHATE CONCENTRATES FROM PITCHBLENDE ORE
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Related Subjects
ACETATES
ANNEALING
AQUA REGIA
BARIUM SULFATES
CHEMISTRY
CHLOROFORM
ENRICHMENT
ETHYL RADICALS
FILTERS
FUSED SALTS
GOLD
HYDROCHLORIC ACID
LEAD OXIDES
LITHARGE
METHYL RADICALS
NITRIC ACID
ORGANIC CHLORINE COMPOUNDS
OXIDATION
PALLADIUM
PITCHBLENDE
PLATINUM
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
REDUCTION
SAMPLING
SEPARATION PROCESSES
SILICATES
SILVER CHLORIDES
SODIUM CHLORIDES
SOLUTIONS
SOLVENT EXTRACTION
TIN CHLORIDES
URANINITES
URANIUM MINERALS
URANIUM ORES
ANNEALING
AQUA REGIA
BARIUM SULFATES
CHEMISTRY
CHLOROFORM
ENRICHMENT
ETHYL RADICALS
FILTERS
FUSED SALTS
GOLD
HYDROCHLORIC ACID
LEAD OXIDES
LITHARGE
METHYL RADICALS
NITRIC ACID
ORGANIC CHLORINE COMPOUNDS
OXIDATION
PALLADIUM
PITCHBLENDE
PLATINUM
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
REDUCTION
SAMPLING
SEPARATION PROCESSES
SILICATES
SILVER CHLORIDES
SODIUM CHLORIDES
SOLUTIONS
SOLVENT EXTRACTION
TIN CHLORIDES
URANINITES
URANIUM MINERALS
URANIUM ORES