本文選題：煤系高嶺石　切入點(diǎn)：浮選　出處：《中國礦業(yè)》2017年05期 　論文類型：期刊論文

【摘要】：通過單礦物浮選試驗(yàn)、Zeta動(dòng)電位測(cè)定、紅外光譜測(cè)試和MS 6.0分子動(dòng)力學(xué)模擬,分析了十二胺鹽酸鹽(DAH)和十二胺聚氧乙烯醚(AC1201)對(duì)煤系高嶺石的浮選行為和作用機(jī)理。結(jié)果表明,藥劑濃度為750g/t時(shí),AC1201可較好地浮選高嶺石。借助MS軟件模擬,構(gòu)建DAH和AC1201單分子在高嶺石(001)面的最優(yōu)吸附構(gòu)型,計(jì)算結(jié)果表明:AC1201分子距高嶺石(001)面的最小距離小于DAH分子距高嶺石表面的最小距離,而且AC1201分子與礦物表面的接觸面積大于DAH,吸附能更低。理論計(jì)算和浮選實(shí)驗(yàn)結(jié)果相互一致,可為探索高嶺石浮選藥劑提供理論基礎(chǔ)。
[Abstract]:The flotation behavior and mechanism of 12 amine hydrochloric acid (DAH) and 12 amine polyoxyethylene ether acid (AC1201) on coal series kaolinite were analyzed by means of determination of Zeta potential, infrared spectroscopy and molecular dynamics simulation of MS 6.0. Kaolinite can be floatated well at concentration of 750 g / t. The optimal adsorption configuration of DAH and AC1201 on kaolinite surface was constructed by means of MS software simulation. The calculated results show that the minimum distance between the molecule AC1201 and kaolinite surface is smaller than that between DAH molecule and kaolinite surface, and the contact area between AC1201 molecule and mineral surface is larger than that of kaolinite surface, and the adsorption energy is lower. It can provide a theoretical basis for exploring kaolinite flotation reagents.
【作者單位】： 太原理工大學(xué)礦業(yè)工程學(xué)院;
【分類號(hào)】：TD923.13;TD97

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