非均相酸碱反应合成纯蒙脱石。

IF 0.2 Q4 CHEMISTRY, MULTIDISCIPLINARY

Revista Colombiana de Quimica Pub Date : 2017-01-01 DOI:10.15446/REV.COLOMB.QUIM.V46N1.59760

Davier Olarte Cárdenas, L. C. M. Aldana, E. Mejía

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引用次数: 0

摘要

通过对搅拌、磷酸加成速率、均匀性和干燥温度的改变，评价了五种不同工艺条件下的钱铁矿(M)合成。通过XRD、FTIR、SEM-EDS分析和Ca/P化学测定(钙用高锰酸钾滴定，磷用钼蓝配合物比色法测定)对产品进行了评价。x -射线衍射、红外光谱和Ca/P比值表明，合成的磷酸盐对应于纯辉钼矿。结果表明，化学计量学和球磨力学活化是影响其组成、晶粒尺寸和钙磷比的主要因素。

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Síntesis de monetita pura por reacción heterogénea ácido base.

Five variations of the monetite (M) synthesis were evaluated modifying the stirring, the phosphoric acid addition rate, the homogeneity and the drying temperature. Products were assessed by means of XRD, FTIR, SEM-EDS analysis and chemical assay of Ca/P (calcium by titration with potassium permanganate and phosphorus by colorimetric assessment of the molybdenum blue complex). X-ray diffraction, infrared spectroscopy and Ca/P ratio indicate that the synthesized phosphate corresponds to pure monetite. It was found that the most influential factors affecting composition, crystal size and Ca/P were stoichiometry and ballmilling mechanoactivation.

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来源期刊

Revista Colombiana de Quimica CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： The Revista Colombiana de Química - Colombian Journal of Chemistry (Rev. Colomb. Quim.) Is a peer-reviewed scientific journal of the Department of Chemistry, Faculty of Sciences of the Universidad Nacional de Colombia, Bogotá. It currently publishes three volumes per year: January-April, May-August and September-December. All the content published by the Journal (available online) is under a Creative Commons attribution license type BY 4.0, that allows any person or entity in the world to freely access the content, share it, download it, adapt it or make derivative works without any restriction, provided that it adequately indicates the credit to the authors and to the Colombian Journal of Chemistry.