美国西北大学发明一种新的提金技术,即采用一种对环境无害的提取自玉米淀粉的糖类(环糊精)来替代传统的有毒氰化物进行提金。这种绿色方法从待处理的材料中提取金,而常与金伴生的其他金属物质则留在尾渣中,该工艺也可用于从废弃电子产品中提取金。目前,几乎所有的产金企业都使用剧毒的氰化物进行提 Northwestern University invented a new gold extraction technology, which uses an environmentally friendly sugar extracted from corn starch (cyclodextrin) to replace the traditional toxic cyanide gold. This green method extracts gold from the material to be treated, while other metals, often associated with gold, remain in the tailings and can also be used to extract gold from scrap electronic products. At present, almost all gold-producing enterprises use highly toxic cyanide to mention