Results 211 to 220 of about 368,322 (300)

Mineralogy and mineral chemistry of quartz: A review

Mineralogical magazine, 2021
Quartz (trigonal, low-temperature α-quartz) is the most important polymorph of the silica (SiO2) group and one of the purest minerals in the Earth crust.
J. Götze, Yuanming Pan, A. Müller
semanticscholar   +1 more source

New insights into selective-depression mechanism of novel depressant EDTMPS on magnesite and quartz surfaces: Adsorption mechanism, DFT calculations, and adsorption model

Minerals Engineering, 2021
In this study, to improve the separation efficiency of magnesite from quartz, ethylenediamine tetra(methylene phosphonic acid) sodium (EDTMPS) was first introduced as a chelation depressant for the selective depression of magnesite in magnesite-quartz ...
Haoran Sun, Bin Yang, Zhanglei Zhu, W. Yin, Qiuyue Sheng, Ying Hou, Jin Yao   +6 more
semanticscholar   +1 more source

The flotation behavior and adsorption mechanism of a new cationic collector on the separation of spodumene from feldspar and quartz

Separation and Purification Technology, 2021
A new collector N-{3-[(2-propylheptyl)oxy]propyl}propane-1,3-diamine (PPPDA) was successfully synthesized in laboratory. The flotation behaviors of PPPDA on the separation of spodumene from feldspar and quartz were investigated through single mineral ...
Ruiqi Xie, Yimin Zhu, Jie Liu, Yan-jun Li   +3 more
semanticscholar   +1 more source

Effects of cement types and addition of quartz and limestone on the normal and carbonation curing of cement paste

Construction and Building Materials, 2021
Belite-rich cement (BRC) and carbonation curing are vital in the cement and construction industries for reducing carbon emissions and achieving carbon neutrality.
Runsheng Lin, Xiao-Yong Wang, Yi-han
semanticscholar   +1 more source

Simultaneous Piezoelectrocatalytic Hydrogen‐Evolution and Degradation of Water Pollutants by Quartz Microrods@Few‐Layered MoS2 Hierarchical Heterostructures

Advances in Materials, 2020
Intense light attenuation in water/wastewater results in photocatalysts exhibiting a low quantum efficiency. This study develops a novel piezoelectrocatalysis system, which involves quartz microrods (MRs) abundantly decorated with active‐edge‐site MoS2 ...
Yu-Ting Lin, Sz-Nian Lai, J. Wu
semanticscholar   +1 more source

Quartz‐to‐Quartz Direct Bonding

Journal of The Electrochemical Society, 1999
Direct bonding of single crystalline quartz wafers is presented. By this straightforward technique, hermetical seals between quartz wafers can be formed.
P. Rangsten, Ö. Vallin, K. Hermansson, Y. Bäcklund   +3 more
openaire   +1 more source