有机硅废触体与浆渣高值化利用新工艺  

New Technology of High Value Utilization of OrganicSilicon Waste Contact and Slurry Residues

作　　者：余伟奇 辜锋 张凡 YU Weiqi;GU Feng;ZHANG Fan(CHALCO Environmental Protection and Energy Conservation Group Co.,Ltd.,Beijing 102209,China;Institute of Environmental Protection and Energy Conservation,Central Research Institute of CHALCO,Beijing 102209,China;Yunnan Keli New Material Co.,Ltd.,Kunming 650031,China)

机构地区：[1]中铝环保节能集团有限公司,北京102209 [2]中铝中央研究院环保节能研究所,北京102209 [3]云南科力环保股份公司,昆明650031

出　　处：《有色金属（冶炼部分）》2023年第9期137-142,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：云南省重大科技专项计划项目(202302AB080002)。

摘　　要：针对有机硅废触体和浆渣的高值化利用,提出机械活化浸出—氧化酸浸联合新工艺,并巧妙融入“以废治废”的创新思路,符合绿色低碳可持续发展的要求。对不同浸出酸度、浸出时间、机械活化、过滤优化等影响因素进行试验研究。结果表明:在机械活化后浸出时间90 min、氧化酸浸液固比3∶1、废盐酸浓度8%、富氧空气量25 L/h、活性助剂添加量0.5%最佳条件下,Cu的浸出率高达96.3%,促进了Si的富集和高效回收。本研究可以为有机硅废触体和浆渣的高值化利用的解决方案提供参考依据。Address to high-value utilization of organic silicon waste contacts and slurry residues,a new process combining mechanical activation leaching and oxidation acid leaching was proposed,and the innovative idea of“treating waste with waste”should be cleverly introduced,which would meet the requirements of green,low-carbon and sustainable development.The experimental studies were conducted on some factors,such as leaching acidity,leaching time,mechanical activation,and filtration optimization,etc.The results show that the leaching rate of Cu is up to 96.3%and simultaneously promoting the enrichment and efficient recovery of Si under the optimal process parameters including leaching time of 90 min after mechanical activation,solid ratio of oxidizing acid leaching solution of 3∶1,concentration of waste hydrochloric acid of 8%,oxygen enriched air of 25 L h,and active additives addition of 0.5%.This study can provide reference for the solution of high value utilization of silicone waste contact and slurry slag.

关 键 词：有机硅 废触体 浆渣 以废治废 高值化利用 

分 类 号：X783[环境科学与工程—环境工程]