列宁格勒矿业学院和北镍公司的研究工作,证明了用两段液相硫酸化处理含铂极泥是合理的。第一段在170～190℃下进行4～6小时,使96～99%的Cu、Ni和Fe(每一元素)转为水溶型,而贵金属和稀有伴生物在以后浸出时富集于不溶残渣中。第二段是选别极泥中 The work of Leningrad Mining Institute and North Nickel Company proved that it is reasonable to treat the Platinum-bearing mudstone with two stages of liquid-phase sulfonation. The first stage is carried out at 170-190 ° C for 4-6 hours to convert 96-99% of Cu, Ni and Fe (per element) into water-soluble form, while precious metals and rare associated organisms are enriched in insoluble at later leaching Residue. The second paragraph is very different in the selection of mud