Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Intensifying coal flotation by means of oxyethylated reagents

Intensifying coal flotation by means of oxyethylated reagents The action of activators that include oxyethylated groups is investigated. Supplying PAV-1 surfactant before the collection agent intensifies flotation in a number of ways: by changing the physicochemical properties of the diffuse layer of coal particles (reducing the unit surface charge); by increasing the emulsification of the apolar reagent; by promoting more orderly structure of the aqueous solution, with the formation of larger bubbles at the particle surface; and by the flocculating action of both the coal and the mineral particles. Adding activators (in amounts of 0.1–1 g/t) increases the yield of flotational concentrate by 1.9–4.1%, with simultaneous decrease in the consumption of collection agent by 20–25%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Coke and Chemistry Springer Journals

Intensifying coal flotation by means of oxyethylated reagents

Coke and Chemistry , Volume 51 (8) – Dec 23, 2008

Loading next page...
 
/lp/springer-journals/intensifying-coal-flotation-by-means-of-oxyethylated-reagents-l9BduY0glO

References (3)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Allerton Press, Inc.
Subject
Chemistry; Industrial Chemistry/Chemical Engineering
ISSN
1068-364X
eISSN
1934-8398
DOI
10.3103/S1068364X08080024
Publisher site
See Article on Publisher Site

Abstract

The action of activators that include oxyethylated groups is investigated. Supplying PAV-1 surfactant before the collection agent intensifies flotation in a number of ways: by changing the physicochemical properties of the diffuse layer of coal particles (reducing the unit surface charge); by increasing the emulsification of the apolar reagent; by promoting more orderly structure of the aqueous solution, with the formation of larger bubbles at the particle surface; and by the flocculating action of both the coal and the mineral particles. Adding activators (in amounts of 0.1–1 g/t) increases the yield of flotational concentrate by 1.9–4.1%, with simultaneous decrease in the consumption of collection agent by 20–25%.

Journal

Coke and ChemistrySpringer Journals

Published: Dec 23, 2008

There are no references for this article.