【摘要】：通過碳熱還原強(qiáng)化酸浸的方法高效去除CRT錐玻璃中的重金屬鉛,同時(shí)將脫鉛殘?jiān)D(zhuǎn)變?yōu)椴Ａ⒅楫a(chǎn)品。實(shí)驗(yàn)考察了還原溫度、碳粉加入量和保溫時(shí)間對錐玻璃中鉛浸出效果的影響。研究結(jié)果表明,經(jīng)碳熱還原預(yù)處理后錐玻璃中的氧化鉛轉(zhuǎn)變?yōu)閱钨|(zhì)鉛并主要富集在玻璃微珠表面,通過酸浸處理可高效回收錐玻璃中的鉛。當(dāng)錐玻璃與10%碳粉混合均勻,在1 200℃條件下處理30 min,錐玻璃中鉛的浸出效率可達(dá)94.80%,脫鉛殘?jiān)鼮榱椒秶?~15μm的玻璃微珠。
[Abstract]:The heavy metal lead in CRT cone glass was effectively removed by means of carbonthermal reduction and acid leaching, and the lead removal residue was transformed into glass bead product at the same time. The effects of reduction temperature, carbon powder addition and holding time on the leaching effect of lead in cone glass were investigated. The results showed that lead oxide in cone glass was transformed into lead and enriched mainly on the surface of glass beads after carbothermal reduction pretreatment. The lead in cone glass could be recovered efficiently by acid leaching treatment. When the cone glass and 10% carbon powder are mixed uniformly, the leaching efficiency of lead in 30 min, cone glass can reach 94.80% at 1200 鈩，

本文編號：2455342