کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8045610 | 1519025 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimising rational chemical analysis for quantitative determination of the composition of clay in soils
ترجمه فارسی عنوان
بهینه سازی تجزیه و تحلیل شیمیایی منطقی برای تعیین کمی ترکیب خاک رس در خاک
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کلمات کلیدی
خاک رس مواد معدنی خاک رس، کائولنیت، مونتموریلونیت، تجزیه و تحلیل شیمیایی ریاضی، کلوئید،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
چکیده انگلیسی
A fractional (rational) chemical analytical method is proposed by which the material composition of clay rocks can be quantified and the clay-forming minerals present can be characterised. Subjecting raw clay to this procedure allows for the determination of the chemical composition of its fine-grained fraction, the amount and composition of exchangeable cations, water-soluble salts, carbonates and colloidal minerals, and the amount of amorphous silica and free quartz. A new, effective method is proposed for the qualitative and quantitative evaluation of the amorphous component in clays. This involves extracting colloids by treating the clay fractions with Tamm's reagent, a buffer solution of oxalic acid and ammonium oxalate with a pH of 3.25. Additionally, through calculations based on the results of chemical analyses, the illite content (derived from the content of non-exchangeable potassium oxide) and the chemical composition of the clay residue are determined. This enables the rock-forming clay mineral to be characterised and its structural chemical formula to be determined. This allows prediction of the physico-chemical and technological properties of the clay.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 163, October 2018, Pages 153-163
Journal: Applied Clay Science - Volume 163, October 2018, Pages 153-163
نویسندگان
Tatyana Vakalova, Valeriy Pogrebenkov, Vladimir Vereshagin, Tamara Khabas, Inna Revva,