湿法分离富集金的方法很多,其中以碲共沉淀、离子交换、活性碳吸附、反相色层萃取、有机萃取等方法较为普遍。这些方法在过滤操作、环境污染及分析时间长等不同程度上存在一定的缺陷。最近有人采用泡沫塑料吸附富集金,但吸附后的金需高温灰化解脱,灰化时放出极难闻的气体,对操作人员的健康有一定的影响。我们在这一工作的基础上,将溶于王水后的金不经分离矿渣直接以泡沫塑料吸附,再以水将泡沫塑料洗 There are many ways to separate and enrich gold by wet method. Among them, tellurium coprecipitation, ion exchange, activated carbon adsorption, reversed phase chromatography and organic extraction are all common methods. These methods have certain defects in different degrees of filtration operation, environmental pollution and long analysis time. Recently, some people use foam to adsorb and enrich gold, but the adsorbed gold needs high-temperature ashing to be liberated, releasing extremely unpleasant gas when ashing, which has certain influence on the operators’ health. On the basis of this work, we dissolve the gold dissolved in aqua regia directly into the foam plastic without separating the slag, and then foam the plastic with water