![Dissolution kinetics of sphalerite in acidic ferric chloride leaching [An article from: Chemical Engineering Journal]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR839Q.jpg)
Dissolution kinetics of sphalerite in acidic ferric chloride leaching [An article from: Chemical Engineering Journal]
Book Details
Author(s)S. Aydogan, A. Aras, M. Canbazoglu
PublisherElsevier
ISBN / ASINB000RR839Q
ISBN-13978B000RR8398
MarketplaceFrance 🇫🇷
Description
This digital document is a journal article from Chemical Engineering Journal, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
This paper presents a study for leaching kinetics of sphalerite concentrate in FeCl"3-HCl solution. The shrinking core model was applied to the results of experiments investigating the effects of stirrer speed of 200-600rpm, ferric ion concentration in range of 0-1M, solid/liquid ratio in range of 1/100-1/5, leaching temperature range of 40-80^oC and particle size on zinc dissolution rate. The activation energy for the leaching process was found to be 45.30kJ/mol and the Arrhenius constant was calculated to be 5.454s^-^1. The order of reaction for ferric ion concentration, solid/liquid ratio and particle size were also obtained. The rate of the reaction based on reaction-controlled process can be expressed as,[1-(1-@a)^1^/^3]=k"0(Fe^3^+)^0^.^3^6(@r"S"/"L)^-^0^.^3^3r"0^-^0^.^9^7exp^(^-^4^5^3^0^0^/^R^T^)t.The dissolution of sphalerite with acidic ferric chloride solution was found to be controlled by reaction-controlled process.
Description:
This paper presents a study for leaching kinetics of sphalerite concentrate in FeCl"3-HCl solution. The shrinking core model was applied to the results of experiments investigating the effects of stirrer speed of 200-600rpm, ferric ion concentration in range of 0-1M, solid/liquid ratio in range of 1/100-1/5, leaching temperature range of 40-80^oC and particle size on zinc dissolution rate. The activation energy for the leaching process was found to be 45.30kJ/mol and the Arrhenius constant was calculated to be 5.454s^-^1. The order of reaction for ferric ion concentration, solid/liquid ratio and particle size were also obtained. The rate of the reaction based on reaction-controlled process can be expressed as,[1-(1-@a)^1^/^3]=k"0(Fe^3^+)^0^.^3^6(@r"S"/"L)^-^0^.^3^3r"0^-^0^.^9^7exp^(^-^4^5^3^0^0^/^R^T^)t.The dissolution of sphalerite with acidic ferric chloride solution was found to be controlled by reaction-controlled process.
