Urea as promoter in the soap flotation of phosphate ores

Sekhar, D.; Srinivas, K.; Prabhulingaiah, G.; Dassin, Yasser

doi:10.1007/s12666-009-0093-y

Cited by 4 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In certain cases, for example, the Eshidiya phosphate beneficiation plant, soaps are mixed with light diesel oil for use as collector. Our earlier work [5] on Eshidiya phosphate ores suggests that addition of urea along with the TL emulsion enhances the recovery of phosphate minerals. Siliceous phosphate ore from Eshidiya mines, Jordan was studied in the present work.…”

Section: Introductionmentioning

confidence: 90%

Comparative Study of Jhamarkotra Soap Emulsion and Tall Oil Soap Emulsion as Flotation Collectors

Srinivas¹,

Sekhar

2010

Indian Chemical Engineer

Self Cite

View full text Add to dashboard Cite

Soaps of mixed fatty acid origin or soap-light diesel oil (LDO) emulsion are used as collectors in the froth flotation of salt type minerals (for example Á apatite, fluorite, dolomite, etc.). Detergents are sometimes used along with soaps to reduce the consumption of soap and also to improve the process efficiency. In the present investigations effect of different reagent regimes on flotation of a siliceous phosphate ore was studied. Flotation tests were carried out using mixed fatty acid soap and tall oil. Both the reagents were used as emulsions with light diesel oil in the ratio of 1:1.2. Tests were also carried out with promoters (Alfa Olefin Sulfonate [AOS], Linear Alkyl Benzene Sulfonate [LABS] and Urea) along with these reagents to evaluate the process efficiency. While AOS and LABS are detergents, urea is a polar non electrolyte reagent known to act as hydrotrope. It is noted that mixed fatty acid soap-LDO emulsion (SL emulsion) shows better process efficiency than tall oil-LDO emulsion (TL emulsion). The highest recoveries (!90%) were achieved when mixed fatty acid was used in conjunction with promoters. The experiments with promoters yielded higher recoveries rather than mixed fatty acid or tall oil used alone.

show abstract

Section: Introductionmentioning

confidence: 90%