Results 31 to 40 of about 8,107 (260)

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

Research on Process Mineralogy of Anqian Magnetite Ore

Kuangchan zonghe liyong, 2022
In recent years, the properties of the ore mined in the Anqian area have changed greatly. In order to provide a basis for the formulation of the ore beneficiation process, it is necessary to carry out detailed process mineralogical research.
Changyan Wang, Donglin Xu, Da Shi, Wenjie Wei, Ling Zhang, Jie Liu   +5 more
doaj   +1 more source

Autonomous X‐Ray Fluorescence Mapping for Nanoscale Chemical Speciation of Fine Particulate Matter

Advanced Intelligent Discovery, EarlyView.
We present X‐AutoMap, an autonomous X‐ray fluorescence mapping framework that integrates real‐time analysis with rule‐based computer vision to selectively target chemically relevant regions. By avoiding background‐dominated areas, the method reduces acquisition time by fourfold while enabling accurate particle‐level speciation.
Carlos Deleon, Dmitri Gavrilov, Peggy O’Day, Ajith Pattammattel   +3 more
wiley   +1 more source

Recovery Process of Copper from a Sulfur Concentrate in Shandong Province

Kuangchan zonghe liyong
[Objective] A sulfur concentrate in Shandong contained 0.47% copper. In order to improve the utilization rate of mineral resources, [Method] technological mineralogy research and copper recovery process tests were conducted on the sulfur concentrate ...
Enming HUANG, Nan NAN, Tonglin ZHAO, Hongliang DONG, Baoxu SONG, Hailong WANG, Fangyuan MA   +6 more
doaj   +1 more source

Giovanni Antonio Scopoli's De Hydrargyro Idriensi Tentamina (1761): Mercury Mining, Mercurialism, and Preventive Reasoning in Eighteenth‐Century Occupational Medicine

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Giovanni Antonio Scopoli (1723–1788), a physician‐naturalist of the Enlightenment, is primarily remembered for his contributions to botany and entomology. Less attention has been paid to his medical work De hydrargyro Idriensi Tentamina physico‐chymico‐medica (1761), written during his fifteen years of service as physician at the mercury mines
Alberto Zanatta, Paola Mason, Sofia Bollini, Giovanni Magno   +3 more
wiley   +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

Ore Characteristics of Inner Mongolia Dawudian Crystalline Graphite Deposit

Kuangchan zonghe liyong, 2023
This is a paper in the field of process mineralogy. Dawudian crystalline graphite deposit is a extra large graphite deposit which located in the Langshan Mountain lying in the Bayan obo rift zone.
Li Wang, Ning Wang, Jun Bai, Shichao Wang, Yuanhong Xie, Tuo Yang, Xuequan Song   +6 more
doaj   +1 more source

A Unified Approach for the Synthesis of Conformationally Locked and sp2‐sp3 Fused Hybrids

Chemistry – A European Journal, EarlyView.
This study presents a systematic platform to build rigid sp2–sp3 hybrids via benzyne cycloadditions. Arene‑fused bicyclic oxa‐, aza‐, and carbocycles are converted into medicinally relevant amino acids and applied to Enalapril analogues synthesis. The hybrids combine aromatic interactions with 3D rigidity, tuning lipophilicity, pKa, and solubility ...
Ervis Saraci, Federica Plavi, Giovanni Viscardi, Chad N. Ungarean, Massimo Boiocchi, Christophe Salome, Quentin Lefebvre, Thomas C. Fessard, David Sarlah   +8 more
wiley   +1 more source

The process chemistry and mineralogy of brannerite leaching

Journal of the Southern African Institute of Mining and Metallurgy, 2017
Brannerite (UTi2O6) is the most important uranium mineral after uraninite and coffinite, and the most common refractory uranium mineral. As the more easily leachable uranium ores are becoming exhausted, it is necessary to process the complex and refractory ores in order to meet the growing demand for uranium as an energy source. This typically requires
Gilligan, R., Nikoloski, A.N.
openaire   +2 more sources

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source