本文選題：硫鋁酸鈣 + 合成　； 參考：《Transactions of Nonferrous Metals Society of China》2017年09期

【摘要】：使用分析純CaCO_3、Al_2O_3和CaSO_4·2H_2O在1375°C保溫2h合成純硫鋁酸鈣(簡(jiǎn)寫(xiě)為C_4A_3S),通過(guò)XRD、SEM、TEM對(duì)其晶體結(jié)構(gòu)進(jìn)行表征。在Na_2CO_3溶液體系下研究其氧化鋁浸出性能,并通過(guò)XRD、Raman等分析手段對(duì)其浸出機(jī)理進(jìn)行分析。結(jié)果表明:在該條件下合成的C_4A_3S具有疏松孔洞狀微觀形貌,并存在沿著不同方向生長(zhǎng)的多晶與單晶共存結(jié)構(gòu);在最佳浸出條件下,浸出率高達(dá)98.41%,優(yōu)于同條件下12CaO·7Al_2O_3的浸出率;浸出后Al和S元素分別以Al(OH)_4~-與SO_4~(2-)的形式存在于浸出液中,Ca以CaCO_3的形式存在于浸出渣中。
[Abstract]:The pure calcium sulphoaluminate (C4A3S) was synthesized at 1375 擄C for 2 hours by using analytical Caco _ 3AL _ 2O _ 3 and CaSO_4 2H_2O. The crystal structure was characterized by XRD-SEMTEM. The leaching properties of alumina were studied in Na_2CO_3 solution system, and the leaching mechanism was analyzed by means of XRDA Raman analysis. The results show that the C_4A_3S synthesized under this condition has the porous pore morphology and the coexistence structure of polycrystalline and single crystal grown in different directions, and the leaching rate is 98.41% under the optimum leaching conditions, which is better than that of 12CaO 7Al_2O_3 under the same conditions. After leaching, Al and S elements exist in the form of CaCO_3 in leaching solution, respectively, in the form of Alo _ HH _ 4 and so _ 4 ~ + _ (2) in the leachate.
【作者單位】： 河北科技大學(xué)材料科學(xué)與工程學(xué)院;河北科技大學(xué)河北省材料近凈成形技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【基金】：Project (E2016208107) supported by the Natural Science Foundation of Hebei Province,China Projects (QN2015002,BJ2016023) supported by the Science and Technology Foundation of Higher Education Institution of Hebei Province,China
【分類(lèi)號(hào)】：TQ132.32;TQ133.1

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張晨曦;摻入不同的摻和劑對(duì)硫鋁酸鈣水化的影響[J];天津輕工業(yè)學(xué)院學(xué)報(bào);2001年02期

2 張巨松,李好新,隋智通;氧化鈦對(duì)無(wú)水硫鋁酸鈣形成的熱分析實(shí)驗(yàn)研究[J];沈陽(yáng)建筑工程學(xué)院學(xué)報(bào)(自然科學(xué)版);2002年03期

3 張巨松,隋智通,回志峰,安會(huì)勇;鈣鈦礦對(duì)無(wú)水硫鋁酸鈣形成的影響[J];東北大學(xué)學(xué)報(bào);2005年03期

4 薛君s，

本文編號(hào)：1967486