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- W203881310 abstract "The quantification of carbonate minerals in oil shales is necessary for computer modeling and for interpretation of oil shale block experiments in the LLL Oil Shale Program. A method of analysis similar to one proposed by the Laramie Energy Research Center was investigated. Their method is based on successively leaching the sample with water and acid. The water extracts nahcolite. The acid treatment extracts dawsonite, dolomite, calcite, and ferroan. The cations are determined individually by atomic absorption and flame emission spectrophotometry, and from this information the respective carbonate minerals are calculated by assignment of the cations. We found good agreement with LERC for magnesium results, but our calcium results were generally higher compared to LERC calcium results. We have found that small amounts of noncarbonate minerals yielding acid extractable calcium are present in oil shales. The result obtained by this method is a semiquantitative analysis of the carbonate minerals." @default.
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- W203881310 date "1977-04-01" @default.
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- W203881310 title "Determination of carbonate minerals in oil shales" @default.
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