Results 41 to 50 of about 104,588 (306)

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

Advanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel, German Montes‐Hernández, Pablo Almarza‐Cifuentes, Matthias Kellermeier, Alexander E.S. Van Driessche   +4 more
wiley   +1 more source

Study on Process Mineralogy of a Low-grade Refractory Phosphate Ore in Sichuan

Kuangchan zonghe liyong, 2022
The process mineralogy of a low-grade refractory phosphate ore in Sichuan Province was studied by means of chemical analysis, microscopic identification, X-ray diffraction and infrared spectrometry analysis.
Xinwen Yu, Panpan Wang, Lin Chen, Junfeng Wu   +3 more
doaj   +1 more source

Ferromanganese nodules and micro-hardgrounds associated with the Cadiz Contourite Channel (NE Atlantic): Palaeoenvironmental records of fluid venting and bottom currents [PDF]

, 2012
Ferromanganese nodule fields and hardgrounds have recently been discovered in the Cadiz Contourite Channel in the Gulf of Cadiz (850–1000 m). This channel is part of a large contourite depositional system generated by the Mediterranean Outflow Water ...
Abouchami, Al-Aasm, Albarède, Ambar, Ambar, Baraza, Baturin, Beal, Berner, Berner, Berner, Birgel, Blinova, Boetius, Bogdanov, Borowski, Brass, Bryden, Cabeçadas, Cacho, Cangemi, Chen, Chen, Chester, Claude, Claypool, Coleman, Dicus, Díaz-del-Río, Ercilla, Faugères, Faugères, Faugères, Fernández-Puga, Fietzke, Fietzke, Fomina, Fortin, Francisco Javier González, Frankel, García, Gardner, Gardner, Giresse, Glasby, González, González, González, González, González, Grootes, Grootes, Hamoumi, Han, Hartmann, Hein, Hein, Hein, Hein, Hein, Hensen, Hernández-Molina, Hernández-Molina, Hernández-Molina, Hinrichs, Hlawatsch, Hodell, ISA, International Seabed Authority, Jesús Martínez-Frías, José Eugenio Ortiz, Kasten, Kennett, Kenyon, Kohn, Konshauser, Koschinsky, Koschinsky, Kozlova, León, León, León, León, León, Llave, Llave, Llave, Loubere, Lovley, Luis Somoza, Madelain, Magalhães, Maldonado, Mangini, Manheim, Martín-Puertas, Massé, Mazurenko, McArthur, McArthur, Medialdea, Medialdea, Meese, Merinero, Mulder, Munsell Color Co, Nealson, Nealson, Nelson, Nelson, Nelson, Niemann, O'Neill-Barringer, O'Nions, Ochoa, Palmer, Palmer, Paull, Pautot, Peckmann, Peckmann, Pinheiro, Piper, Platt, Puteanus, Raúl Merinero, Rebesco, Reyss, Ricardo León, Robinson, Rogers, Rona, Rosario Lunar, Scholz, Sevastýanov, Sivkov, Somoza, Stadnitskaia, Stadnitskaia, Stein, Stow, Stow, Stumpf, Summerhayes, Taylor, Tebo, Tebo, Templer, Teresa Medialdea, Trinidad de Torres, Tucholke, Usui, Vegas, Veizer, Viana, Voelker, von Stackelberg, Walters, Webb, Zahn, Zheng   +159 more
core   +2 more sources

Prenucleation Species Dictate Foreign Ion Incorporation in the Biomineral Precursor Amorphous Calcium Carbonate

Advanced Functional Materials, EarlyView.
ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao, Patrick Duchstein, Benedikt Demmert, Thi Q. Nhi Dao, Krishnaveni Anjala, Evelyn Gruber, Franziska Gröhn, Dirk Zahn, Dorrit E. Jacob, Stephan E. Wolf   +9 more
wiley   +1 more source

The structure of RUB-56, (C6H16N)8 [Si32O64(OH)8]·32 H2O, a hydrous layer silicate (2D-zeolite) that contains microporous levyne-type silicate layers

Zeitschrift für Kristallographie - New Crystal Structures
C48H200N8O104Si32, monoclinic, C2/m (no. 12), a = 16.2532(14) Å, b = 13.3020(7) Å, c = 16.7771(14) Å, β = 96.476(10)°, V = 3604.07(3) Å3, Z = 1, R(F) = 0.031, χ 2 = 2.44, Rgt (F) = , wRref (F 2) = , T = 293 K.
Marler Bernd, Gruenewald-Lueke Antje, Gies Hermann, de Baerdemaeker Trees   +3 more
doaj   +1 more source

Application of Process Minerals Research on a Magnetite Ore in Guazhou County, Gansu Province

Kuangchan zonghe liyong
The type of magnetite ore belongs to the altered gabbro type iron mine in Guazhou County, Gansu Province. The chemical and mineral properties were studied by means of chemical multiple analysis, X-ray fluorescence spectrum analysis, phase analysis ...
Haojia SI, Bailei CHEN, Jiacheng LIU, Wenxuan LI   +3 more
doaj   +1 more source

Technological Mineralogy of a Copper Anode Slime in Qinghai

Kuangchan zonghe liyong, 2022
In order to improve the technology of the process of noble metal extracted from high lead copper anode slime, the technological mineralogy investigation of the anode slime was studied by chemical analysis methods, XRD, particle size analysis, SEM and EDS.
Huiting Zhang, Cunjian Weng, Chunhua Lai, Xunqing Wang, Huatai Wang, Yuan Liu   +5 more
doaj   +1 more source

The oxygen isotopic composition of water extracted from unequilibrated ordinary chondrites [PDF]

, 2003
The oxygen isotopic composition of water extracted from the unequilibrated ordinary chondrites Semarkona and Bishunpur reveals differences in alteration mineralogy and levels of isotopic enrichment – reflecting key parameters in the alteration ...
Baker, L., Franchi, I.A., Pillinger, C.T., Wright, I.P.   +3 more
core  

Scalable Electrochemical Concrete Fabrication and Closed‐Loop Recycling

Advanced Science, EarlyView.
The electrochemical‐driven recycling strategy establishes a reversible concrete material flow by extracting Ca, Si, Al, and Fe from concrete waste and regenerating functional feedstocks. These reversed products are reassembled into new concrete, which re‐enters service and ultimately returns to waste, enabling a closed‐loop, waste‐origin, and low ...
Hanxiong Lyu, Zhenlin Li, Yang Liu, Lu Zhu, Lucen Hao, Mingxin Shi, Shipeng Zhang, Chi Sun Poon   +7 more
wiley   +1 more source

Application of a SEM-EDS-Based Automated Process Mineralogy Analyzing System on the Occurrence State of Silver in Copper Ore Flotation Tailings

Yankuang ceshi
The silver occurrence state and process mineralogical characteristics are critical to its beneficiation process and recovery indicators, which can be used for assisting in process development, plant design, and improvement of silver recovery. In order to
Ligang WEN, Muxin JIA, Jianjun ZHAO, Qing WANG, Qiang FU   +4 more
doaj   +1 more source