当前位置: X-MOL 学术Waste Manag. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Environmentally friendly process instead of cyanide leaching on recycling of gold and silver from jewellery scraps and wastes.
Waste Management & Research ( IF 3.7 ) Pub Date : 2020-07-01 , DOI: 10.1177/0734242x20931947
Ş Beste Aydın 1 , Alim Gül 1
Affiliation  

Nowadays, the production and exploration of gold has an increased importance all over the world. Recycling is a significant source for the supply of gold and has a pronounced effect on its price. The flotation method, which is more economical and more environmentally friendly than cyanide leaching, has been investigated for recycling gold and silver from jewellery slag. A jewellery slag sample containing 28.3 ppm Au and 42.0 ppm Ag was obtained from a refinery in Turkey. Flotation concentrate assaying 614.6 ppm Au and 511 ppm Ag was achieved with recoveries of 89.0% and 83.2%, respectively. On the other hand, 87.8% Au and 81.5% Ag extractions were obtained by cyanide leaching tests. Based on these results, flotation is suggested, considering its environmental and economic benefits.



中文翻译:

环保工艺,而不是氰化物从珠宝首饰废料和废物中回收金和银后浸出。

如今,黄金的生产和勘探在世界范围内的重要性日益提高。循环利用是黄金供应的重要来源,对黄金的价格产生了显着影响。浮选法比氰化物浸出更经济,更环保,现已被研究用于从珠宝矿渣中回收金和银。从土耳其的一家精炼厂获得了含有28.3 ppm Au和42.0 ppm Ag的珠宝渣样品。浮选精矿可检测出614.6 ppm的Au和511 ppm的Ag,回收率分别为89.0%和83.2%。另一方面,通过氰化物浸出试验获得了87.8%的金和81.5%的银提取物。根据这些结果,建议进行浮选,并考虑其环境和经济效益。

更新日期:2020-07-01
down
wechat
bug