The Experts below are selected from a list of 48861 Experts worldwide ranked by ideXlab platform
Zhu Xianwen - One of the best experts on this subject based on the ideXlab platform.
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Depressant behavior of tragacanth gum and its role in the flotation separation of chalcopyrite from talc
Journal of materials research and technology, 2019Co-Authors: Feng Bo, Peng Jinxiu, Zhang Wenpu, Zhu XianwenAbstract:Abstract Guar gum is an effective Depressant of talc, but it also has some depression effect on sulfide minerals. To find new selective Depressants, the depression effects and mechanisms of tragacanth gum to talc were studied and its role in the flotation separation of chalcopyrite from talc was investigated by flotation test, adsorption and zeta potential tests as well as XPS analysis. The individual mineral flotation test results showed that the natural flotability of talc is good which make it easy to be reported into the concentrate. The guar gum and tragacanth gum can effectively depress the flotation of talc, and their depression effect is not affected by pH. The mixed minerals flotation tests indicated that the tragacanth gum can effectively separate chalcopyrite from talc, both the copper concentrate grade and recovery are high, besides, tragacanth gum exhibits less depression effects for chalcopyrite compared with guar gum. According to the Zeta potential and XPS measurements, it can be concluded that tragacanth gum adsorbed on talc surface mainly through physical interactions, and hydrophobic interaction was considered as the main driving force and hydrogen bond may also play a role.
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Depressant behavior of tragacanth gum and its role in the flotation separation of chalcopyrite from talc
Elsevier, 2019Co-Authors: Guo Wei, Peng Jinxiu, Zhang Wenpu, Zhu XianwenAbstract:Guar gum is an effective Depressant of talc, but it also has some depression effect on sulfide minerals. To find new selective Depressants, the depression effects and mechanisms of tragacanth gum to talc were studied and its role in the flotation separation of chalcopyrite from talc was investigated by flotation test, adsorption and zeta potential tests as well as XPS analysis. The individual mineral flotation test results showed that the natural flotability of talc is good which make it easy to be reported into the concentrate. The guar gum and tragacanth gum can effectively depress the flotation of talc, and their depression effect is not affected by pH. The mixed minerals flotation tests indicated that the tragacanth gum can effectively separate chalcopyrite from talc, both the copper concentrate grade and recovery are high, besides, tragacanth gum exhibits less depression effects for chalcopyrite compared with guar gum. According to the Zeta potential and XPS measurements, it can be concluded that tragacanth gum adsorbed on talc surface mainly through physical interactions, and hydrophobic interaction was considered as the main driving force and hydrogen bond may also play a role. Keywords: Talc, Depression, Tragacanth Gum, Chalcopyrit
Feng Bo - One of the best experts on this subject based on the ideXlab platform.
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Depressant behavior of tragacanth gum and its role in the flotation separation of chalcopyrite from talc
Journal of materials research and technology, 2019Co-Authors: Feng Bo, Peng Jinxiu, Zhang Wenpu, Zhu XianwenAbstract:Abstract Guar gum is an effective Depressant of talc, but it also has some depression effect on sulfide minerals. To find new selective Depressants, the depression effects and mechanisms of tragacanth gum to talc were studied and its role in the flotation separation of chalcopyrite from talc was investigated by flotation test, adsorption and zeta potential tests as well as XPS analysis. The individual mineral flotation test results showed that the natural flotability of talc is good which make it easy to be reported into the concentrate. The guar gum and tragacanth gum can effectively depress the flotation of talc, and their depression effect is not affected by pH. The mixed minerals flotation tests indicated that the tragacanth gum can effectively separate chalcopyrite from talc, both the copper concentrate grade and recovery are high, besides, tragacanth gum exhibits less depression effects for chalcopyrite compared with guar gum. According to the Zeta potential and XPS measurements, it can be concluded that tragacanth gum adsorbed on talc surface mainly through physical interactions, and hydrophobic interaction was considered as the main driving force and hydrogen bond may also play a role.
Zhang Wenpu - One of the best experts on this subject based on the ideXlab platform.
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Depressant behavior of tragacanth gum and its role in the flotation separation of chalcopyrite from talc
Journal of materials research and technology, 2019Co-Authors: Feng Bo, Peng Jinxiu, Zhang Wenpu, Zhu XianwenAbstract:Abstract Guar gum is an effective Depressant of talc, but it also has some depression effect on sulfide minerals. To find new selective Depressants, the depression effects and mechanisms of tragacanth gum to talc were studied and its role in the flotation separation of chalcopyrite from talc was investigated by flotation test, adsorption and zeta potential tests as well as XPS analysis. The individual mineral flotation test results showed that the natural flotability of talc is good which make it easy to be reported into the concentrate. The guar gum and tragacanth gum can effectively depress the flotation of talc, and their depression effect is not affected by pH. The mixed minerals flotation tests indicated that the tragacanth gum can effectively separate chalcopyrite from talc, both the copper concentrate grade and recovery are high, besides, tragacanth gum exhibits less depression effects for chalcopyrite compared with guar gum. According to the Zeta potential and XPS measurements, it can be concluded that tragacanth gum adsorbed on talc surface mainly through physical interactions, and hydrophobic interaction was considered as the main driving force and hydrogen bond may also play a role.
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Depressant behavior of tragacanth gum and its role in the flotation separation of chalcopyrite from talc
Elsevier, 2019Co-Authors: Guo Wei, Peng Jinxiu, Zhang Wenpu, Zhu XianwenAbstract:Guar gum is an effective Depressant of talc, but it also has some depression effect on sulfide minerals. To find new selective Depressants, the depression effects and mechanisms of tragacanth gum to talc were studied and its role in the flotation separation of chalcopyrite from talc was investigated by flotation test, adsorption and zeta potential tests as well as XPS analysis. The individual mineral flotation test results showed that the natural flotability of talc is good which make it easy to be reported into the concentrate. The guar gum and tragacanth gum can effectively depress the flotation of talc, and their depression effect is not affected by pH. The mixed minerals flotation tests indicated that the tragacanth gum can effectively separate chalcopyrite from talc, both the copper concentrate grade and recovery are high, besides, tragacanth gum exhibits less depression effects for chalcopyrite compared with guar gum. According to the Zeta potential and XPS measurements, it can be concluded that tragacanth gum adsorbed on talc surface mainly through physical interactions, and hydrophobic interaction was considered as the main driving force and hydrogen bond may also play a role. Keywords: Talc, Depression, Tragacanth Gum, Chalcopyrit
Peng Jinxiu - One of the best experts on this subject based on the ideXlab platform.
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Depressant behavior of tragacanth gum and its role in the flotation separation of chalcopyrite from talc
Journal of materials research and technology, 2019Co-Authors: Feng Bo, Peng Jinxiu, Zhang Wenpu, Zhu XianwenAbstract:Abstract Guar gum is an effective Depressant of talc, but it also has some depression effect on sulfide minerals. To find new selective Depressants, the depression effects and mechanisms of tragacanth gum to talc were studied and its role in the flotation separation of chalcopyrite from talc was investigated by flotation test, adsorption and zeta potential tests as well as XPS analysis. The individual mineral flotation test results showed that the natural flotability of talc is good which make it easy to be reported into the concentrate. The guar gum and tragacanth gum can effectively depress the flotation of talc, and their depression effect is not affected by pH. The mixed minerals flotation tests indicated that the tragacanth gum can effectively separate chalcopyrite from talc, both the copper concentrate grade and recovery are high, besides, tragacanth gum exhibits less depression effects for chalcopyrite compared with guar gum. According to the Zeta potential and XPS measurements, it can be concluded that tragacanth gum adsorbed on talc surface mainly through physical interactions, and hydrophobic interaction was considered as the main driving force and hydrogen bond may also play a role.
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Depressant behavior of tragacanth gum and its role in the flotation separation of chalcopyrite from talc
Elsevier, 2019Co-Authors: Guo Wei, Peng Jinxiu, Zhang Wenpu, Zhu XianwenAbstract:Guar gum is an effective Depressant of talc, but it also has some depression effect on sulfide minerals. To find new selective Depressants, the depression effects and mechanisms of tragacanth gum to talc were studied and its role in the flotation separation of chalcopyrite from talc was investigated by flotation test, adsorption and zeta potential tests as well as XPS analysis. The individual mineral flotation test results showed that the natural flotability of talc is good which make it easy to be reported into the concentrate. The guar gum and tragacanth gum can effectively depress the flotation of talc, and their depression effect is not affected by pH. The mixed minerals flotation tests indicated that the tragacanth gum can effectively separate chalcopyrite from talc, both the copper concentrate grade and recovery are high, besides, tragacanth gum exhibits less depression effects for chalcopyrite compared with guar gum. According to the Zeta potential and XPS measurements, it can be concluded that tragacanth gum adsorbed on talc surface mainly through physical interactions, and hydrophobic interaction was considered as the main driving force and hydrogen bond may also play a role. Keywords: Talc, Depression, Tragacanth Gum, Chalcopyrit
Shahram Ejtemaei Mehr - One of the best experts on this subject based on the ideXlab platform.
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opioid nmda receptors blockade reverses the Depressant like behavior of foot shock stress in the mouse forced swimming test
European Journal of Pharmacology, 2014Co-Authors: Arya Hajmirzaian, Sattar Ostadhadi, Nastaran Kordjazy, Ahmad Reza Dehpour, Shahram Ejtemaei MehrAbstract:Abstract Opioid and glutamatergic receptors have a key role in depression following stress. In this study, we assessed opioid and glutamatergic receptors interaction with the Depressant-like behavior of acute foot-shock stress in the mouse forced swimming test. Stress was induced by intermittent foot shock stimulation during 30 min and swim periods were afterwards conducted by placing mice in separated glass cylinders filled with water for 6 min. The immobility time during the last 4 min of the test was considered. Acute foot-shock stress significantly increased the immobility time of mice compared to non-stressed control group ( P ≤0.01). Administration of non-selective opioid receptors antagonist, naltrexone (1 and 2 mg/kg, i.p.), and the selective non-competitive NMDA receptor antagonist, MK-801 (0.05 mg/kg, i.p.), and the selective serotonin reuptake inhibitor, fluoxetine (5 mg/kg), significantly reduced the immobility time in stressed animals ( P ≤0.01). Lower doses of MK-801 (0.01 mg/kg), naltrexone (0.3 mg/kg), NMDA (75 mg/kg) and morphine(5 mg/kg) had no effect on foot-shock stressed mice. Combined treatment of sub-effective doses of naltrexone and MK-801 significantly showed an antiDepressant-like effect ( P ≤0.001). On the other hand, co-administration of non-effective doses of NMDA and morphine with effective doses of naltrexone and MK-801 reversed the anti-immobility effect of these drugs. Taken together, we have for the first time demonstrated the possible role of opioid/NMDA receptors signaling in the Depressant-like effect of foot-shock stress, and proposed the use of drugs that act like standard anti-Depressants in stress-induced depression.