Download Beneficiation of phosphate ore by S K Kawatra PDF

By S K Kawatra

Show description

Read or Download Beneficiation of phosphate ore PDF

Best mining books

Rock mechanics

This re-creation has been thoroughly revised to mirror the amazing recommendations in mining engineering and the awesome advancements within the technological know-how of rock mechanics and the perform of rock angineering taht have taken position over the past twenty years. even though "Rock Mechanics for Underground Mining" addresses a number of the rock mechanics matters that come up in underground mining engineering, it isn't a textual content solely for mining functions.

New Frontiers in Mining Complex Patterns: First International Workshop, NFMCP 2012, Held in Conjunction with ECML/PKDD 2012, Bristol, UK, September 24, 2012, Rivesed Selected Papers

This publication constitutes the completely refereed convention complaints of the 1st overseas Workshop on New Frontiers in Mining complicated styles, NFMCP 2012, held along with ECML/PKDD 2012, in Bristol, united kingdom, in September 2012. The 15 revised complete papers have been rigorously reviewed and chosen from a variety of submissions.

Rapid Excavation and Tunneling Conference Proceedings 2011

Each years, specialists and practitioners from around the globe assemble on the prestigious quick Excavation and Tunneling convention (RETC) to benefit concerning the newest advancements in tunneling expertise, and the signature initiatives that support society meet its starting to be infrastructure wishes. inside of this authoritative 1608-page publication, you’ll locate the a hundred and fifteen influential papers that have been offered supplying invaluable insights from initiatives world wide.

Extra info for Beneficiation of phosphate ore

Sample text

First, it is important that the column be installed perfectly vertical, since any tilting in the column will enhance axial mixing. Second, using relatively small bubbles with uniform size distribution will help limit axial mixing. Lastly, the addition of horizontal baffles (perforated plates) throughout the column has been shown to significantly decrease axial mixing and increase overall flotation performance (Kawatra and Eisele 1999, 2001). 9, horizontal baffles break up the global axial mixing shown in the unbaffled column into smaller local mixing patterns without restricting fluid flow so much that plugging occurs.

The methods vary significantly in accuracy, difficulty, and amount of data needed for entrainment calculations. In addition, several authors have attempted to generate models for entrainment (Savassi et al. 1998; Zheng et al. 2005, 2006; Martinez-Carrillo and Uribe-Salas 2008). In phosphate flotation, some authors have suggested that entrainment could be the reason for fine silica reporting to the froth phosphate concentrate during the anionic flotation stage of the Crago double float process. It was suggested that because of the low floatability of sedimentary phosphates, larger amounts of fatty acid collector were needed during the anionic flotation stage, resulting in large and voluminous froths that caused silica to be entrained into the phosphate concentrate (Zhong et al.

5) procedure used in the Crago double float process (Oswald 1993; Wiegel 1999; Guan 2009a). Contact angle measurements can also be used to test the selectivity of potential collectors. Kawatra et al. (2012) tested the selectivity of potential Beneficiation of Siliceous Sedimentary Phosphate Ores 35 dolomite collectors by conditioning both dolomite and apatite pebbles and measuring contacts angles using the static sessile drop technique. Five dolomite pebbles and five apatite pebbles were ground into flat slices and conditioned with a proposed dolomite collector at the same conditions.

Download PDF sample

Rated 4.25 of 5 – based on 8 votes