摘要
用于醇醚氧化制备醇醚羧酸盐(AEC)的Pd/C废催化剂经过洗涤、干燥、灼烧、盐酸溶解,可以回收其中的钯。考察了回收过程中灼烧温度、灼烧时间、溶解温度、溶解时间及盐酸浓度等条件对钯回收率的影响,结果表明:600℃灼烧6h、盐酸浓度20%、90℃溶解8h,钯的回收率可达到98.5%以上。
Pd could be recovered from waste Pd/C catalyst of catalytic oxidation of AEO to AEC by incineration and dissolved in hydrochloric acid. The recovery conditions, such as incineration temperature and time, dissolved temperature and time and concentration of HCl, were tested. The results showed that the recovery ratio of Pd was more than 98.5% under the process condition, in that, incineration at 600℃ for 6 h, HC1 concentration 20% and dissolving at 90 ℃ for 8 h.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2009年第5期724-727,共4页
Chinese Journal of Rare Metals
基金
国家科技支撑计划项目资助(2007BAE52B03)
