Martins Fernanda Machado, Martins Joaniel Munhoz, Ferracin Luiz Carlos, da Cunha Carlos Jorge
Laboratório de Química Mineral Aplicada, Departamento de Química-UFPR, Universidade Federal do Paraná (UFPR), CP 19081, CEP 81531990, Curitiba-PR, Brazil.
J Hazard Mater. 2007 Aug 17;147(1-2):610-7. doi: 10.1016/j.jhazmat.2007.01.057. Epub 2007 Jan 20.
Four residues generated in a Kraft, pulp and paper plant, were characterized by X-ray fluorescence spectroscopy (XFA), powder X-ray diffraction (XRD), thermogravimmetric analysis (TG) and Fourier transform infrared spectroscopy (FTIR). A quantitative phase composition model, that accounts for the observed data and for the physico-chemical conditions of formation, was postulated for each material. Emphasis was given on the identification of the mineral components of each material. The green liquor dregs and the lime mud contain Calcite and Gipsite. The slaker grits contains Calcite, Portlandite, Pirssonite, Larnite and Brucite. The Calcite phase, present in the dregs and in the lime mud, has small amounts of magnesium replacing calcium. The wood ash contains Quartz as the major crystalline mineral phase.
对一家硫酸盐制浆造纸厂产生的四种残渣进行了X射线荧光光谱分析（XFA）、粉末X射线衍射分析（XRD）、热重分析（TG）和傅里叶变换红外光谱分析（FTIR）。针对每种材料，提出了一个定量相组成模型，该模型考虑了观测数据以及形成时的物理化学条件。重点是确定每种材料的矿物成分。绿液残渣和石灰泥含有方解石和石膏石。消石灰含有方解石、氢氧化钙、水碱、硅灰石和水镁石。存在于残渣和石灰泥中的方解石相有少量镁取代了钙。木灰以石英作为主要的结晶矿物相。
