𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A Study on Recovery of Gold from Decopperized Anode Slime

✍ Scribed by B. Dönmez; F. Sevim; S. Çolak

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
172 KB
Volume
24
Category
Article
ISSN
0930-7516

No coin nor oath required. For personal study only.

✦ Synopsis

A study was performed on the chlorination and cementation of gold from an anode slime. The gold from decopperized anode slime first was dissolved with chlorine gas in aqueous medium, later the dissolved gold was precipitated by using a rotational copper disc. The effects of reaction temperature, reaction period, stirring speed, solid-liquid ratio and Cl 2 gas flow rate on the dissolution of gold were investigated. Increasing the solid-liquid ratio decreases the dissolution, the solubility increases with increasing reaction temperature, reaction period and stirring speed. It was observed that the Cl 2 gas flow rate hasn't a significant effect on the dissolution. As to the precipitation of the gold in the solution, the effects of temperature and rotational speed were sought for. The experimental results showed that the gold recovery could be over 90 %. For the kinetics analysis of the cementation, the activation energy value was found to be 19.51 kJ´mol ±1 .

📜 SIMILAR VOLUMES

Selective Solid Phase Extraction for Sep
Selective Solid Phase Extraction for Separation and Preconcentration of Palladium from Gold Ore and Anode Slime after Complexation with a N4O2 Mixed Donor Ligand Derivative
✍ Volkan Numan Bulut; Mehmet Tufekci; Celal Duran; Mustafa Soylak; Halit Kantekin 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 127 KB

## Abstract A selective and sensitive method for the preconcentration, separation, and determination of palladium with flame atomic absorption spectrometry using 4,15‐bis[(4‐methylphenyl)sulfonyl]‐20,21‐dinitro‐2,3,4,5,6,7,9,10,12,13,14,15,16,17‐tetradecahydro‐8,11‐ethano‐1,18,4,8,11,15‐benzodioxa

A study on the recovery of xylitol by ba
A study on the recovery of xylitol by batch adsorption and crystallization from fermented sugarcane bagasse hydrolysate
✍ Solange I Mussatto; Júlio C Santos; Walter C Ricardo Filho; Silvio S Silva 📂 Article 📅 2006 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 229 KB

## Abstract Xylitol was recovered from fermented sugarcane bagasse hemicellulosic hydrolysate by adsorption and crystallization procedures. Silica gel adsorption was employed to purify the broth containing xylitol. In this step, different mixtures of the solvents ethyl acetate, ethanol and acetone