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吸附金的重结晶实验
引用本文:张世柏,吴大清.吸附金的重结晶实验[J].矿物学报,1996,16(4):377-381,T001.
作者姓名:张世柏  吴大清
作者单位:中国科学院广州地球化学研究所!广州,510640,中国科学院广州地球化学研究所!广州,510640,中国科学院广州地球化学研究所!广州,510640
基金项目:国家自然科学基金!49273181
摘    要:黄铁矿表面和方铅矿表面对金的硫氢络合方法的吸附特点不同,前者更易于将表面络合态金Au(I)还原成单质金Au(0),且吸附能力一些,经重结重晶实验以后,天然黄铁矿和合成黄铁有面的吸附金均发生了明显的迁移,归并作用,但二者归并的程度不同,方铅矿表面的吸附金则扫并效果不明显,结合矿物表面特征,利用矿物表面缺陷模型和表面扩散模型对上述结果进行了解释,并与矿石金的赋存状态进行了对比。

关 键 词:吸附    重结晶作用  赋存状态

AN EXPERIMENT ON RECRYSTALLIZATION OF ADS0RBED GOLD
Zhang Shibai, Wu Daqing, Xie Xiande.AN EXPERIMENT ON RECRYSTALLIZATION OF ADS0RBED GOLD[J].Acta Mineralogica Sinica,1996,16(4):377-381,T001.
Authors:Zhang Shibai  Wu Daqing  Xie Xiande
Abstract:The adsorbed thio gold c0mplexes Au (I) on pyrite surface are more easily reduced to ele-'mental gold Au (0) and have a higher adsorption density than that on galena surface. After recrys-tallization experiment, the adsorbed gold undertook an apparent migration and incorporation, al-though the degree of migrati0n and incorporati0n is different. However, the incorporation of ad-sorbed gold in galena was not observed- The results were e1ucidated using a surface defect m0deland a surface diffusi0n model, and were compared with the mode of occurrence of gold in gold de-pos 1ts.
Keywords:adsorbed gold  sulfide surface  recrystallization  occurrence mode of gold
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