化工进展Issue(8)：1974-1978,5.DOI:10.3969/j.issn.1000-6613.2013.08.044
超声波对铅膏湿法转化产物结晶形貌的影响
Effects of ultrasound on the crystallization of products prepared from lead paste by hydrometallurgical processes
摘要
Abstract
Lead paste from spent lead-acid battery was produced by hydrometallurgy process in citric acid solution. The small size of lead citrate,the precursor of the process made it difficult to be filtered from the liquid mixture. The crystallization process of lead citrate was controlled by ultrasound. The products were characterized by means of XRD,TG-DTA and SEM before and after the treatment of ultrasound. The results indicated that morphology of lead citrate changed from crystal flakes to columnar with draw ratio about 8∶1,and the length of crystal ranged from 20 µm to 50 µm. The crystal size of lead citrate before ultrasound treatment is less than 5 µm. Therefore,ultrasound treatment can efficiently control the crystal morphology of lead citrate resulting in improvement of the filter performance of lead citrate precursor and the conversion ratio of lead paste in hydrometallurgical processes.关键词
湿法工艺/铅膏/超声波/柠檬酸铅/结晶形貌Key words
hydrometallurgy process/lead paste/ultrasound/lead citrate/crystal morphology分类
资源环境引用本文复制引用
孙晓娟,张伟,李卉,朱新锋,何东升,杨家宽..超声波对铅膏湿法转化产物结晶形貌的影响[J].化工进展,2013,(8):1974-1978,5.基金项目
华中科技大学自主创新研究项目重点基金（Z2009021）、国家自然科学基金（50804017）、教育部新世纪人才支持计划（NCET-09-0392）、湖北省自然科学基金重点项目（杰出青年基金，13105043）及武汉市科技攻关计划（20120321100）项目。 （）
