1) silver sulphide deposition
硫化银沉淀
1.
This paper discusses,in the scope of micrography,the technical principles of metallic replacement,electolytic and silver sulphide deposition methods used for recovery of silver from used fixing solution,some considerations in practice of silver recovery,and a comparison of advantages and disadvantages of the three methods.
本文围绕缩微技术讨论了用金属置换法、电解法和硫化银沉淀法从废定影液中提银的工艺原理、实施提银时应注意的事项以及这三种方法各自的优缺
2) sulfide precipitation
硫化沉淀
1.
Thermodynamic analysis results show that most heavy metallic ions and As(Ⅲ) in Na_2TeO_3 solution can be removed thoroughly by sulfide precipitation method.
实验确定硫化沉淀法去除杂质离子的最佳条件是:pH=11,温度为373 K,反应时间为50 min。
3) copper sulfide
硫化铜沉淀
4) sulphur precipitate zinc
硫化沉淀锌
5) sulfide precipitation method
硫化沉淀法
1.
The interferences of Ag,Cu,Pb and As are eliminated by sulfide precipitation method.
采用硝酸、高氯酸溶样并将偏磷酸氧化为正磷酸,用硫化沉淀法消除Ag、Cu的干扰,同时也消除Pb、As的干扰,在铋盐催化下磷与钼酸铵反应生成黄色磷钼酸铵,此磷钼酸铵能被抗坏血酸还原为磷钼蓝,以光度法直接测定。
6) sulfide precipitate flotation
硫化沉淀浮选
1.
The paper briefly analyzes main pollutants and harms of acid mine drainage, presents several new techniques which includes neutralization, sulfide precipitate flotation process, microorganism method and constructed wetland.
本文简要分析了酸性矿山废水的主要污染物及危害,叙述了几种主要的处理技术:中和法、硫化沉淀浮选法、微生物法和人工湿地,并介绍了它们的机理、特点及实验研究和工业应用情况,由此对我国的酸性矿山废水的治理技术进行了前景展望。
补充资料：硫化银
化学式Ag2S，分子量247.8。黑色立方晶体。不溶于水和氨水。溶于浓硝酸。用于制陶瓷。将硫化氢通入硝酸银溶液可制得。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条