本文選題：莫桑比克 + 天然鱗片石墨　； 參考：《非金屬礦》2017年01期

【摘要】：以莫桑比克天然鱗片石墨為原料,采用K_2Cr_2O_7/HClO_4/H_3PO_4為氧化插層劑,制備可膨脹石墨。在K_2Cr_2O_7用量、HClO_4用量、H_3PO_4用量、反應(yīng)溫度和時(shí)間的單因素條件基礎(chǔ)上,確定反應(yīng)工藝:m(石墨)/m(K_2Cr_2O_7)/V(HClO_4)/V(H_3PO_4)=1∶0.1∶3.67∶1.33(g∶g∶mL∶mL),反應(yīng)溫度30℃,時(shí)間40min。最終制得可膨脹石墨在600℃溫度下,膨脹體積可達(dá)340mL/g。XRD物相分析和紅外光譜分析證明ClO_4~-、H_2PO_4~-、HPO_4~(2-)和PO_4~(3-)的插入使得膨脹過程順利進(jìn)行。
[Abstract]:Using natural flake graphite of Mozambique as the raw material, the expandable graphite was prepared by using the way of K2Cr2OS, which was used as oxidation intercalation agent, and the number of H3PO4 as the oxidizing intercalation agent. On the basis of the single factor conditions of the single factor in the way that the number of h3PO4, the temperature and the time of the reaction are used, the reaction process is determined, on the basis of the amount of K2Cr2O7, the amount of HClO4, the volume of H3PO4, the single factor condition of the reaction temperature and time, the reaction temperature is 30 鈩，

本文編號：2018808