Mineral Matter Characterization in Olive Stones by Joint Use of LTA, XRD, FT-IR and SEM-EDX

López, M.C. Blanco; Martı́nez-Alonso, A.; Tascón, J.M.D.

doi:10.1366/0003702001948763

Cited by 12 publications

(4 citation statements)

References 19 publications

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“…This mineral is characterized [17][18][19] by the presence of the peaks at 715, 875, 1085 & 1425 cm -1 ( Table 1). The presence of calcite (CaCo 3 ) in the findings may occur essentially for two reasons; a low firing temperature or a post burial deposition processes.…”

Section: Calcitementioning

confidence: 99%

Mineralogical Characterization Studies of Ancient Potteries of Tamilnadu, India by FT‐IR Spectroscopic Technique

Ravisankar¹,

Kiruba

Eswaran

et al. 2010

Journal of Chemistry

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We report the spectroscopic investigation of ancient potteries excavated in Tamilnadu. Qualitative analyses were carried out to determine the major and minor constituent minerals present in the samples from the band position or location of the peaks. From the prominent IR absorption peaks, the minerals were identified with the available literature are the quartz, orthoclase, albite, magnetite, hematite, kaolinite, montmorillonite, illite, gypsum and calcite. The interpretation of results is made from the IR characteristics absorption bands. Spectroscopic results indicates that these potteries were refried to a less than 900°C.

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Section: Calcitementioning

confidence: 99%

Mineralogical Characterization Studies of Ancient Potteries of Tamilnadu, India by FT‐IR Spectroscopic Technique

Ravisankar¹,

Kiruba

Eswaran

et al. 2010

Journal of Chemistry

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“…14 In fact, inherent biomass minerals are quite reactive and have a potential catalytic effect during pyrolysis. 15,16 It was found that the inorganic minerals could alter the distribution of the solid, liquid, and gaseous products during the pyrolysis process. 17 They could even make more homogeneous constituents with relatively small molecules.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Despite an extensive body of published research on biochar carbon stability, no systematic investigation of the effects of inherent minerals on carbon sequestration potential of biochar has been reported to date . In fact, inherent biomass minerals are quite reactive and have a potential catalytic effect during pyrolysis. , It was found that the inorganic minerals could alter the distribution of the solid, liquid, and gaseous products during the pyrolysis process . They could even make more homogeneous constituents with relatively small molecules. , For instance, Patwardhan et al and Shimada et al demonstrated that inorganic salts (K + , Na + , Ca 2+ , Mg 2+ ) increased the gaseous yield of low molecular species.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Inherent Minerals with Carbon during Biomass Pyrolysis Weakens Biochar Carbon Sequestration Potential

Nan

Yang

Zhao

et al. 2018

ACS Sustainable Chem. Eng.

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Biomass carbon could be sequestrated in form of biochar, an aromatized carbon structure produced by pyrolysis. Inherent minerals are reactive constituents that interact with organic contents during pyrolysis, significantly affecting the properties of the pyrolysis product. Despite their importance, their influence on biochar-carbon sequestration has been rarely studied. This study selected four types of biomass: barley grass, peanut hull, cow manure and sewage sludge to investigate the influence of inherent minerals on carbon conversion during pyrolysis. Results showed removal of inherent minerals shifts the peak biomass conversion to a higher temperature (370 o C) compared to biomass with inherent minerals being present (330 o C). It also led to reduced emissions of low molecular weight organic compounds. Compared to pristine biomass, more carbon (3.5-30.1%) could be retained in biochar along pyrolysis after removing inherent minerals. And it showed increased resistance to chemical and thermal oxidation decomposition, indicating higher carbon stability and therefore carbon sequestration potential. Instrumental analysis showed removal of inherent minerals facilitated disappearance of oxygen-containing functional groups such as C=O, O=C-O and CO , while promoting C-C/C=C bonds, indicating higher aromatization of biochars. This study suggested that to remove minerals prior to pyrolysis can be a promising approach for strengthening carbon-sequestration potential of biochar.

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“…The infrared spectra of river sediments from Cauvery and Vellar had been characterized by Ramasamy et al (2005;2007). XRD patterns of different minerals were determined by various workers (Neog et al 1999;Lopez et al 2000;Sundararajan et al 2009). The Fourier Transform Infrared absorption spectra of sediments contain more information about mineralogy (Ramasamy et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Mineralogical Characterization in the Marine Environment of Kalpakkam, Southeast Coast of India

Deepthi

Natesan

Muthulakshmi

et al. 2014

Marine Georesources & Geotechnology

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Sediments from Kalpakkam in the southeast coast of India were analyzed to characterize heavy mineral distribution. The mineral deposits are fine-grained in nature, and temporal and spatial variations are observed in mineral deposits. Iron mineral peaks observed indicate that hematite is present in the samples. The abundance of iron-based minerals explains the occurrence of black grains in the beaches of Sadras and Kokillamedu. In the rest of the region, the mineral distribution is found to be poor and patchy. Uranium-based radioactive minerals are present in the study area, viz., Uranmicrolite, Dessauite, Dumontite, and Sedovite. The common light minerals are quartz and caminite and the heavy minerals that are not iron-rich are tungusite, charoite, glagolevite, mangazeite, falkmanite, augelite, and struvite. Heavy minerals concentrated in the intertidal tide zone show well-developed swash marks by their typical alignment during the process of swash and backwash. Caminite is formed due to the reaction of seawater with hydrothermal fluids in a midoceanic ridge; its presence in the beach indicates the extent of onshore-offshore sediment transport. The heavy mineral distribution pattern along the Kalpakkam-Mahabalipuram stretch reveals the influence of energy conditions and energy fluctuations that are capable of transporting high-density minerals.

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Mineral Matter Characterization in Olive Stones by Joint Use of LTA, XRD, FT-IR and SEM-EDX

Cited by 12 publications

References 19 publications

Mineralogical Characterization Studies of Ancient Potteries of Tamilnadu, India by FT‐IR Spectroscopic Technique

Mineralogical Characterization Studies of Ancient Potteries of Tamilnadu, India by FT‐IR Spectroscopic Technique

Interaction of Inherent Minerals with Carbon during Biomass Pyrolysis Weakens Biochar Carbon Sequestration Potential

Mineralogical Characterization in the Marine Environment of Kalpakkam, Southeast Coast of India

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