合成了一种新型的三唑硫酮类表面活性剂—3-己基-4-氨基-1,2,4-三唑-5-硫酮（HATT）,通过红外光谱和核磁共振氢谱及磁谱对其结构进行了表征,研究其在黄铜矿表面的吸附动力学和热力学。结果表明：黄铜矿吸附HATT优选的p H值为4~8,吸附量...合成了一种新型的三唑硫酮类表面活性剂—3-己基-4-氨基-1,2,4-三唑-5-硫酮（HATT）,通过红外光谱和核磁共振氢谱及磁谱对其结构进行了表征,研究其在黄铜矿表面的吸附动力学和热力学。结果表明：黄铜矿吸附HATT优选的p H值为4~8,吸附量随着温度的升高而增大;吸附过程符合准二级动力学方程,吸附活化能为13.06 k J/mol;HATT在黄铜矿表面的吸附等温线符合Langmuir模型,吸附焓变ΔH为71.52 k J/mol,熵变ΔS为348.7 J/（mol·K）,吸附自由能变ΔG为-28.95 k J/mol（298K）。HATT可能以单分子层化学吸附于黄铜矿表面,吸附为自发的吸热过程。FTIR光谱分析进一步证实HATT以化学方式吸附在黄铜矿的表面。浮选试验结果也表明,HATT是黄铜矿的优良捕收剂。展开更多
From α acetylthioformanilide and thio semicarbazide eight heterocyclic compounds of substituted phenylamino 6 metyl 1,2,4 triazine 3 thiones were synthesized.Their structures were confirmed by elemental analysis, 1HN...From α acetylthioformanilide and thio semicarbazide eight heterocyclic compounds of substituted phenylamino 6 metyl 1,2,4 triazine 3 thiones were synthesized.Their structures were confirmed by elemental analysis, 1HNMR,IR and MS.展开更多
The title compounds was synthesized by the fluorination reaction of Dialkylaminosulfur trifluoride(DAST) with 1(4alkylphenyl acetyl)4alkylphenyl.The reaction was carried out in ethyleneglycol dimethyl ether at...The title compounds was synthesized by the fluorination reaction of Dialkylaminosulfur trifluoride(DAST) with 1(4alkylphenyl acetyl)4alkylphenyl.The reaction was carried out in ethyleneglycol dimethyl ether at 80℃ for 24h with conversion 95%and yield 42%～50%.The influence of quantity of DAST,temperature and solvent was investigated.展开更多
文摘合成了一种新型的三唑硫酮类表面活性剂—3-己基-4-氨基-1,2,4-三唑-5-硫酮（HATT）,通过红外光谱和核磁共振氢谱及磁谱对其结构进行了表征,研究其在黄铜矿表面的吸附动力学和热力学。结果表明：黄铜矿吸附HATT优选的p H值为4~8,吸附量随着温度的升高而增大;吸附过程符合准二级动力学方程,吸附活化能为13.06 k J/mol;HATT在黄铜矿表面的吸附等温线符合Langmuir模型,吸附焓变ΔH为71.52 k J/mol,熵变ΔS为348.7 J/（mol·K）,吸附自由能变ΔG为-28.95 k J/mol（298K）。HATT可能以单分子层化学吸附于黄铜矿表面,吸附为自发的吸热过程。FTIR光谱分析进一步证实HATT以化学方式吸附在黄铜矿的表面。浮选试验结果也表明,HATT是黄铜矿的优良捕收剂。
文摘From α acetylthioformanilide and thio semicarbazide eight heterocyclic compounds of substituted phenylamino 6 metyl 1,2,4 triazine 3 thiones were synthesized.Their structures were confirmed by elemental analysis, 1HNMR,IR and MS.
文摘The title compounds was synthesized by the fluorination reaction of Dialkylaminosulfur trifluoride(DAST) with 1(4alkylphenyl acetyl)4alkylphenyl.The reaction was carried out in ethyleneglycol dimethyl ether at 80℃ for 24h with conversion 95%and yield 42%～50%.The influence of quantity of DAST,temperature and solvent was investigated.
