An ion-tolerance collector AESNa for effective
The separation of magnesite and dolomite has always been a difficult problem in flotation production, one of the reasons is that the dissolved Ca 2+ ions from dolomite weaken the anionic flotation selectivity. In this study, an ion-tolerance collector, sodium fatty alcohol polyoxyethylene ether sulfonate (AESNa), was used to weaken or …
Structure, genesis and resources efficiency of …
In an ideal structure of dolomite, alternating layers of Mg 2+, Ca 2+ are interspersed with CO 3 2− groups oriented normal to the c-axis (Fig. 1), with a Mg/Ca …
Dolomite – Soma Minerals
Dolomite is an earthy mineral. It is a Carbonate mineral, also known as Calcium Magnesium Carbonate. Generally it is white to off white in color. Its chemical formulae is CaMg (CO₃)₂. This mineral crystallizes in the Trigonal system. Gujarat in INDIA is rich in Dolomite deposits. Dolomite is a mineral that has a special saddle-shaped crystal.
Dolomite (mineral)
Dolomite and calcite look similar under a microscope, but thin sections can be etched and stained in order to identify the minerals. Photomicrograph of a thin section in cross and plane polarised light: the brighter mineral grains in the picture are dolomite, and the darker grains are calcite.. Dolomite (/ ˈ d ɒ l. ə ˌ m aɪ t, ˈ d oʊ. l ə-/) is an anhydrous carbonate …
Application of light-burnt dolomite as a mineral addition in …
Growth in the production of cement has led to increasing demands for mineral additions. This study was conducted to develop an alternative addition by calcining dolomite at 800°C to obtain a mixture of periclase (MgO) and calcite (CaCO3). The light-burnt dolomite (LBD) was used to prepare blended cements. The hydration, setting time …
Surface interactions and flotation behavior of calcite, dolomite …
The technical-grade single-mineral samples were ground and sieved to −105 + 38 μm prior to be used in the micro-flotation experiments.In addition, in order to perform spectroscopy studies, a portion of each single mineral was further ground down to an average size <5 μm using an agate mortar to increase mineral surface areas.The …
Minerals | Free Full-Text | Effects of Metal Ions on …
The effects of Ca2+, Mg2+, Al3+, and Fe3+ on the flotation behaviors of apatite, dolomite and quartz were investigated through a micro-flotation test, and the influence of calcium ions on the flotation of …
Minerals | Free Full-Text | Mineralogical Characterization of …
The Camarasa Dam was built in 1920 using dolomitic aggregate and Portland cement with two different compositions: type A (dolomite and Portland cement) and type B (dolomite and sand-cement). The sand cement was a finely powdered mixture of dolomite particles and clinker of Portland cement. The mineralogy of concrete was …
Sustainable soil remediation using mineral and hydrogel
Amendments, including dolomite, iron-modified dolomite, hydrogel, and the joint application of iron-modified dolomite and hydrogel, were applied at a 3wt.% to the surficial 0 ~ 20 cm. Joint application of sodium acrylate hydrogel and iron-modified dolomite lime showed a synergy between metalloid immobilization and soil health …
Dolomite | Formula, Properties & Application
Physical Properties. Color: Dolomite usually ranges from white to grey, but it can also occur in shades of pink, green, brown, and even black when impurities are present. Hardness: …
Minerals | Free Full-Text | Mechanochemical Synthesis of Dolomite
Dolomite, as a common mineral in nature, has a wide range of applications in the chemical industry, metallurgy and construction; however, its formation has puzzled researchers for centuries. It was first discovered by the French mineralogist and chemist Deodat Gratet de Dolomieu in the 18th century in the dolomite mountains of …
Thermodynamic and Kinetic Studies of Dolomite …
Accordingly, in order to better understand the dolomite problem, this paper reviews the research progress in kinetic and thermodynamic studies of dolomite genesis in recent decades. Firstly, this paper reviews the literature on the mineralogy of dolomite in order to distinguish other Ca-Mg carbonate minerals.
Dolomite | Formula, Properties & Application
Physical Properties. Color: Dolomite usually ranges from white to grey, but it can also occur in shades of pink, green, brown, and even black when impurities are present. Hardness: On the Mohs scale of mineral hardness, Dolomite measures at a 3.5 to 4, signifying it's relatively soft. Luster: It has a vitreous (glass-like) to pearly luster ...
(PDF) Dolomite-apatite separation by amphoteric collector …
The separation of carbonate gangue minerals, such as dolomite and calcite, from phosphate ores, like apatite, is still a notorious problem in mineral processing (Wonyen et al., 2018;Yehia et al ...
Minerals | Free Full-Text | Surface Features of Fluorapatite …
The surface features of fluorapatite (FA, Ca5(PO4)3F) and dolomite (CaMg(CO3)2) conditioned with sulfuric acid (H2SO4) were examined through flotation experiments, contact angle tests, time-of-flight secondary ion mass spectrometry (TOF-SIMS), and FTIR experiments. The flotation and contact angle results suggested that …
A review on dolomite: Genesis, application and …
Abstract. Dolomite is an important industrial mineral which is mainly used for metallurgical purpose. In recent years, there has been a rapid demand of dolomite with …
Thermodynamic and Kinetic Studies of Dolomite …
Accordingly, in order to better understand the dolomite problem, this paper reviews the research progress in kinetic and thermodynamic studies of dolomite genesis …
Applications of Dolomite Minerals
Being a main component of sedimentary rock known as dolostone and the metamorphic rock known as dolomite marble and proves to be a common mineral in hydrothermal veins. Applications of dolomite minerals are vast and it contains oxygen, carbon, magnesium and calcium in 52:13:13:21 rate. It slightly reacts when exposed to dilute hydrochloric acid.
Dolomite Powder Industrial Application and Properties
5. Mining. Dolomite can be used as a flux in blast furnaces. Also, being a source of magnesium metal and magnesia is an important component in mining. 6. Rubber industry. Dolomite helps in increasing the volume of rubber. It helps in adjusting the softness and hardness of manufactured rubber. 7.
Hydration of magnesite and dolomite minerals: new
Magnesite (MgCO3) and dolomite [(Mg,Ca)(CO3)2] are the main minerals involved in the production of magnesium metal, which is considered as a critical raw material in the EU and USA.
Hydration of magnesite and dolomite minerals: new insights from
Magnesite (MgCO 3) and dolomite [(Mg,Ca)(CO 3) 2] are the main minerals involved in the production of magnesium metal, which is considered as a critical raw material in the EU and USA.In this study, we investigated the hydration mechanisms of (10 1 ̅ 4) magnesite and dolomite surface by static density functional theory relaxations …
Polymers | Free Full-Text | On the Use of Dolomite as a Mineral …
Polymers are being used in many applications all around the world. However, there are some drawbacks in the properties of polymers that could hamper their usage in certain applications. Therefore, a new material polymer composite was introduced. A polymer composite is a polymer-based material with the addition of a filler. …
Minerals | Free Full-Text | Study on the Reverse Flotation …
Dolomite, a prominent calcium-bearing gangue mineral found in carbonate-type zinc oxide ores, poses a significant challenge for effective flotation separation alongside smithsonite due to their highly similar surface properties. The present study explores the potential of 2-(4,4-dimethylpentan-2-yl)-5,7,7-trimethyloctanoic acid (2 …
Structure, genesis and resources efficiency of …
Dolomite can form as a major mineral component of marlstones and limestones and is an important sink for magnesium in the marine environment. Dolomite …
Effects of Dolomite on Mineral Compositions and …
Chengde chromium-bearing vanadium–titanium magnetite (CCVTM) has been used as an important mineral resource in sinter making. The MgO content of this sinter can be enhanced by adding dolomite, which improved operation of the blast furnace. The effects of MgO in the form of dolomite on metallurgical properties, microstructure …
Dolomite Mineral | Uses and Properties
Dolomite is a common rock-forming mineral. It is a calcium magnesium carbonate with a chemical composition of CaMg (CO 3) 2. It is the primary component of the sedimentary …
Properties of gypsum particleboard with added mineral dolomite
Red pine (Pinus brutia) wood particles and dolomite mineral were used in varying proportions to form mineral-added gypsum particleboards. ... Functional groups assessment A FTIR analysis was made to characterize the structure of the composite material and the use of functional groups in the main structure. ... Press: New York. …
Dolomite | Formation, Structure, Properties, Uses, & Facts
dolomite, type of limestone, the carbonate fraction of which is dominated by the mineral dolomite, calcium magnesium carbonate [CaMg(CO 3) 2].. General considerations. Along with calcite and aragonite, dolomite makes up approximately 2 percent of the Earth's crust. The bulk of the dolomite constitutes dolostone formations that occur as thick units of …
Interaction of Ca2+, Mg2+ with dolomite (104) surface and …
DOI: 10.1016/j.apsusc.2022.156244 Corpus ID: 255172545; Interaction of Ca2+, Mg2+ with dolomite (104) surface and its effect on caproic acid adsorption: DFT calculation @article{Gao2022InteractionOC, title={Interaction of Ca2+, Mg2+ with dolomite (104) surface and its effect on caproic acid adsorption: DFT calculation}, author={Wenxin Gao …
Catalysts | Free Full-Text | The Regeneration of Dolomite as …
Dolomite as a heterogeneous catalyst can be used in biodiesel synthesis. Process material costs can be reduced by regenerating and reusing the catalyst. Two methods of regeneration of dolomite were studied: (1) washing for 30 min with methanol, filtration, and washing for 30 min with hexane and (2) calcination at high temperature. …