When processing a mineral, a plant must optimize process efficiency and minimize waste generation. Determining the content of useful components and ore properties …
Mineralogy is the scientific study of minerals. The issue at hand is the definition of the term "mineral," which was first used in Medieval Latin in the late fourteenth century as minerale, or "something mined."The term survives today in common use forms, for example, "mineral water" and "vitamins and minerals" that have nothing to do with the science of …
Grinding aid additives are established in various industrial dry fine grinding processes, primarily to achieve either a) an increase of the production capacity, b) a decrease …
As an indispensable part of reservoir exploration, several studies have indicated that evaluating the clay mineral composition in rocks through mineral analysis is significant in evaluating the existence mechanism of shale gas (Chen et al., 2015), and minerals such as iron, gypsum, pyrite and kaolinite may be catalytic elements in the maturation process of carbonate …
Clay-size minerals play important roles in terrestrial biogeochemistry and atmospheric physics, but their data have been only partially compiled at global scale. We present a global dataset of ...
An introduction to the geochemical and geophysical sciences logically begins with mineralogy, because Earth's rocks are composed of minerals—inorganic elements or compounds that have a fixed chemical composition and that are made up of regularly aligned rows of atoms. Today one of the principal concerns of mineralogy is the chemical analysis of …
Petrologists who study rocks of all sorts need to know about minerals. And others who use resources in manufacturing need minerals. So, the world's people rely on minerals. And, minerals, mineral production, and …
This paper reviews recent progress in applying mineral magnetic methods in sediment pollution studies. Such applications include its use as a dating marker, as a proxy for heavy metal concentrations and to trace metal pollutant dispersal. The mineral magnetic method has been found to be a promising tool in a wide range of sediment metal pollution studies. …
Sediment provenance studies concern the origin, composition, transportation and deposition of detritus and therefore are an important part of understanding the links between basinal sedimentation, and hinterland tectonics and unroofing. ... "Raman spectroscopy in heavy-mineral studies", Sediment Provenance Studies in Hydrocarbon Exploration and ...
There are numerous spectrometric and spectroscopic techniques that can be employed to study both mineral bulk and surface chemistry (Cormia, 1992, Marabini et al., 1993). Some of these techniques are more applicable for identifying and understanding interactions between minerals and various components within the hosting pulp. The most …
The effects of solid and liquid additives on a dry grinding process were studied at four additive concentrations and two grinding times, using a laboratory vibration ball mill with calcite as the feed material, under selected milling conditions.
Commonly, clay minerals are considered to be phyllosilicates of < 2 µm in size. However, here I repeat my proposition (Churchman, 2010a) that clay minerals in the soil context are "secondary inorganic compounds of clay (< 2µm) size in soil regardless of their crystalline or nanocrystalline order, or their degree of disorder". Thus, they ...
Most of the relevant studies regarded the pyrolysis of OS just as the thermal degradation of oil components in OS. In fact, OS consisted of not only water and oil but also solids (such as silica and clay minerals). Although solids were ubiquitous in OS, the interactions between solids and oil components during pyrolysis of OS sludge were neglected.
The development of shale gas reservoirs with water-based drilling fluids is complicated by the problem of clay mineral hydration. The method of molecular simulation is widely used in many research fields, in both humanitarian and material sciences. In this paper, based on the previously published studies, the authors propose a comprehensive review of …
Previous studies show that sensor-based sorting can reduce energy, water and reagent consumption and fine waste production by discarding waste prior to further processing.
Hydrous components in nominally anhydrous minerals have been the object of increasing study for the past three decades. OH ions and, less commonly, H2O molecules are found in many anhydrous minerals at concentrations ranging from ppms to tenth's of a percent by weight. Infrared spectroscopy remains the preferred method to characterize these components …
A good review and early study showed the potential of spectroscopy on conveyor belts for ore to waste separation (Goetz et al., 2009). More recently, studies commenced looking at real-time ore sorting using spectral measurements on porphyry copper to distinguish copper grades (Dalm et al., 2017, Dalm et al., 2014, Iyakwari and Glass, 2014).
This study has developed a new theoretical model to predict the additive impacts on crystallization based on the classical nucleation theory and regular solution theory. The …
Raman spectroscopic and geochemical studies of primary and secondary minerals in Martian meteorite Northwest Africa 10720
Keywords: mineralogical studies, mineral individuals and aggregates, anatomy and ontogeny of minerals, mineralogical laws and patterns, indicator minerals and geochronometers, typomorphism, petro- and ore genesis DOI: 10.1134/S1075701521070059 INTRODUCTION Mineralogy is the basis of our knowledge of the Earth's substance, and minerals are an ...
Until recently, the classic approach to mineral exploration studies was to bring the field samples/drill cores collected during field studies to the laboratory, followed by laborious analysis procedures to generate the analytical data. This is very expensive, time-consuming, and difficult for exploring vast areas. However, rapid technological advances in field-portable …
The document summarizes experimental studies of oxide minerals. It discusses the goals of such studies, including determining conditions of oxide mineral formation. It focuses on oxide minerals found in rocks from the crust and upper mantle, excluding silicate phases. The document outlines techniques for controlling experimental parameters like temperature, …
The ECA's Economic Report for Africa (2015) discusses the negative effects of weakened commodity prices on the growth of mineral dependent countries in Africa, including, for example, reductions in revenues and employment. In Africa, key minerals and oil exporting countries such as South Africa, Ghana, and Nigeria have been adversely affected by the …
Reviews in Mineralogy and Geochemistry (1991) 25 (1): 69–106. Article history. First Online:
The effects of solid and liquid additives on a dry grinding process were studied at four additive concentrations and two grinding times, using a laboratory vibration ball mill with …
Biomineralization is the formation and deposition of minerals and processes contributing to the creation of these organic-inorganic composites (Weiner and Dove 2005; Estroff 2008).This process holds a special position in life sciences because, unlike other biological transformations, which at best leave no lasting signature on the environment or a tenuous …
Investigations have been carried out to evolve a grinding aid useful in grinding a 40% iron-bearing magnetite containing quartz as the major gangue, based on studies conducted with pure …
For studies of minor to trace heavy minerals in sediments or sedimentary rocks (see Morton 2012, Keulen et al. 2012, Košler 2012, Chew & MLA MEASUREMENTS Analysis Sequence and Run Times The MLA software …
Colloidal interactions play an important role in mineral processing. Developments of various techniques allow us to study the phenomena involving colloidal interactions, …
Disruptions in the minerals supply chain play a central role in defining the future stock of minerals; therefore, an in-depth analysis of the outcomes and variables affecting exploration is required. In comparative terms, the exploration of critical minerals and major minerals presents geological and technical differences; thus, exploration budgets for critical …
Studies in additive grinding of minerals. R. Paramasivam, R. Vedaraman. Published 1992. Materials Science, Chemistry. Advanced Powder Technology. View via Publisher. Save to …
Purpose Several approaches addressing mineral resource dissipation have recently been developed in life cycle assessment. One of them, developed by the JRC of the European Commission (JRC-LCI), suggests to account for dissipative resource flows in life cycle inventories (LCIs). This article aims at (i) further testing this approach on case studies, to …
Read the latest chapters of Studies in Environmental Science at ScienceDirect, Elsevier's leading platform of peer-reviewed scholarly literature ... Book series. Chapters & Volumes. Menu. Chapters & Volumes. Latest volume; All volumes; Submit search. Biogeochemical Cycling of Mineral-Forming Elements. Edited by . P.A. Trudinger - Baas ...
Literature search. In 2013 our group carried out an extensive search of the literature to identify studies of calcium, milk, or dairy intake, or calcium supplements that reported a broad range of ...
Kato, Y. (1965) Mineralogical study of weathering products of granodiorite at Shinshiro City, Japan. III. Weathering of primary minerals. (2) Mineralogical characteristics of weathered mineral grains. Soil Science and Plant Nutrition, 11, 30–40.Google Scholar