摘要
基于理论分析和初步研究，本文提出一种新型溶金银试剂─—石硫合剂（ＬＳＳＳ）。本试剂可用廉价石灰（或氢氧化钙）硫磺及添加剂通过火法或温法合成。其水溶液是一种富含Ｓｘ（２－）和Ｓ２Ｏ３（２－）等在碱性介质中与金、银能形成稳定配离子的混合溶液。文中对影响ＬＳＳＳ的制备及溶金银的几种主要因素进行了讨论。并给出了诸如铜氨配离子等有效添加剂。
Based on theoretical analysis and initial study, this paper proposesa new type reagent of dissolving gold and silver-LSSS which can be compounded from cheap lime (or calcium hydroxide), sulphur and additive agentby fire or wet process. The liquor of LSSS contains rich Sx2- and S2O3(2-) which can dissolve gold or silver to form stable complex ions in the presenceof alkaline medium. Main factors which influence the preparation of LSSS anddissolving of gold and slyer are discussed. The efficacious additive as complexcompound of copper and ammonium are also given in this paper.
出处
《黄金》
CAS
北大核心
1994年第1期31-34,共4页
Gold
关键词
金
银
溶解
石硫合剂
制备
gold
silver
dissolution
LSSS
preparation
