【摘要】 研究了硫化锑矿中的常见杂质Pb、As、Fe、Cu、Zn、Bi、Sn和Se对氯化-水解法生产的锑白白度的影响。实验结果表明,杂质的影响分为三种类型,即:使白度降低的负效应杂质,如Sn(Ⅱ)、Cu(Ⅰ)、Fe、Bi;使白度升高的正效应杂质,如Cu(Ⅱ)(1～3g/L)、Zn(≤1g/L);无明显影响的杂质,如As、Pb和Se。文中对杂质影响白度的机理作了探讨。更多还原

【Abstract】 The effect of common impurities, such as lead, arsenic, iron, copper, zinc, bismuth, tin andselenium, contained in stibnite on the whiteness of antimony trioxide which was produced by chlorina-tion-hydrolysis process was investigated. The experimental results show that the effect of impurities isdivided into three types: negative effect impurities decreasing the whiteness, such as tin (Ⅱ), copper(Ⅰ), iron and bismuth; positive effect impurities increasing the whiteness. such as copper (Ⅱ)(1～3g/L) and zinc (≤1g/L); impurities without obvious effect, such as arsenic, lead and selenium.The mechanism which affects the whiteness was proposed.更多还原