Insight into selective depression of sodium thioglycallate on arsenopyrite flotation: Adsorption mechanism and constructure

Dong, Wenchao; Liu, Runqing; Wang, Changtao; Zhu, Xianwen; Xie, Zhenhui; Sun, Wei

doi:10.1016/j.molliq.2023.121480

“…The -NOO-in m-NBO adsorbs on the Fe site known as the primary activation site on the arsenopyrite surface via covalent bonds, thereby indicating that m-NBO has a strong depression effect on arsenopyrite. Later on, Dong et al [257] studied the depression mechanism of sodium thioglycallate (STG) towards arsenopyrite in the flotation separation of chalcopyrite and arsenopyrite. The results demonstrated that STG prefers to adsorb on arsenopyrite rather than on chalcopyrite and hinders the adsorption of BX on the arsenopyrite surface, which further improves the wettability of arsenopyrite.…”

Section: Arsenic-bearing Mineralsmentioning

confidence: 99%

Application of Quantum Chemistry in the Study of Flotation Reagents

Tang

¹

,

Chen

²

,

Chen

³

et al. 2023

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…Arsenopyrite depression has been studied using organic compounds such as sodium thioglycollate (STG), demonstrating a selective depression. FTIR analyses have indicated that STG chemically binds to the iron (Fe) and As sites on the arsenopyrite surface through its -COO-group and forms a hydrogen bond with water molecules through the top of the molecule; this in turn forms a hydrophilic layer that causes the depression of arsenopyrite [14].…”

Section: Introductionmentioning

confidence: 99%

Depression of Arsenopyrite during Collectorless Flotation in Presence of Aqueous Metal Ions and Inorganic Compounds

Reyes

¹

,

Rojo

²

,

García

³

et al. 2023

Minerals

2

0

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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Inquire into Co-doped pyrite crystal structure modifications and implications for flotation behavior: A DFT study

Dong

¹

,

Liu

²

,

Geng

³

et al. 2024

Applied Surface Science

7

0

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

Insight into selective depression of sodium thioglycallate on arsenopyrite flotation: Adsorption mechanism and constructure

Cited by 20 publications

References 48 publications

Application of Quantum Chemistry in the Study of Flotation Reagents

Application of Quantum Chemistry in the Study of Flotation Reagents

Depression of Arsenopyrite during Collectorless Flotation in Presence of Aqueous Metal Ions and Inorganic Compounds

Inquire into Co-doped pyrite crystal structure modifications and implications for flotation behavior: A DFT study

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