(1. 湘潭工學(xué)院 化學(xué)工程系， 湘潭 411201;
2. 中南工業(yè)大學(xué) 化學(xué)化工學(xué)院， 長(zhǎng)沙 410083)
摘 要: 研究了在常壓、 通氧條件下，用濃硫酸浸取閃鋅礦制取硫酸鋅時(shí)酸浸條件對(duì)鋅浸取率的影響。 實(shí)驗(yàn)表明， 當(dāng)硫酸濃度為40%(質(zhì)量比)， 液固比為6～7∶1(質(zhì)量比)， 酸浸溫度控制在110～120 ℃， 浸取時(shí)間為2 h， 氧流量為每升酸浸液40～50 cm3/min時(shí)， 鋅浸取率大于95%， 閃鋅礦中所含的硫大部分以單質(zhì)硫析出。
關(guān)鍵字: 閃鋅礦； 硫酸鋅； 常壓酸浸
（1. Department of Chemical Engineering， Xiangtan Polytechnic University， Xiangtan 411201， P.R.China；
2. College of Chemistry and Chemical Engineering，Central South University of Technology， Changsha 410083， P.R.China）
Abstract: Zinc sulfate was produced in process of soaking blende with sulfuric acid of high concentration in oxygen and at normal pressure. The effects of leaching conditions with sulfuric acid on the rateof leaching zinc has been discussed. The results show that the rate of leaching zinc is above 95% andsulfur among blende mostly become elemental sulfur under the conditions ofthe concentration of sulfuric acid of 40% (in mass)， the ratio of liquid to solid of 6～7∶1 (in mass)， the temperature of the soaking process controlledfrom 110 ℃ to 120 ℃， the soaking time 2 h， and the oxygen flux through each liter leaching liquid 40～50 cm3/min.
Key words: blende； zinc sulfate； soaking condition
