0016-2361/$ see front matter 2008 Elsevier Ltd. A doi:10.1016/j.fuel.2008.04.030 * Corresponding author. Tel.: +1 313 832 2643; fax E-mail address: [email protected] (K.Y. Simon Ng). The formation of precipitates in biodiesel blends may have serious implications for diesel engine fuel delivery systems. Precipitates were observed in Soybean oil (SBO-), cottonseed oil (CSO-), and poultry fat (PF-) ba...

The influence on impurity removal exerted by the application of flocculants in the phosflotation process has been investigated. A number of cationic flocculants are shown to enhance the removal of colour and starch. The use of flocculants did not influence the turbidity and conductivity ash of the clarified liquor. Changes in filterability and phosphate content of clear liquor resulting from th...

Pemphigus vulgaris (PV) and pemphigus foliaceus (PF) are autoimmune blistering diseases in which antibodies develop to the cell surface of epidermal cells. In this study we sought to determine the antigenic specificity of antibodies in the sera of patients with PV and PF. Sera from 12 patients with PV were used to immunoprecipitate extracts of cultured human epidermal cells that were radiolabel...

As environmental regulations are becoming stricter, new techniques must be developed for the removal of trace concentrations heavy metals from mineral processing effluents. Foam separation an interesting alternative to more conventional processes such as ion exchange because their efficiency treat dilute aqueous streams. In this paper, simultaneous Cd2+, Mn2+, and Zn2+ solutions was investigate...

Studies have demonstrated that isolated soya protein (ISP) can slow the progression of renal injury, reduce blood pressure and improve the serum lipid profile in experimental animals and human subjects. The mechanisms and components of soya responsible have not been fully established. The present study was designed to evaluate the effects of the hydrophilic supernatant fraction (SF) and the hyd...

Ion flotation is an efficient separation technique for the recovery of metal ions from dilute aqueous solutions. Provided that both collected and surfactant are recovered foam phase, it could be considered as alternative to ion exchange, adsorption or solvent extraction in hydrometallurgy. However, most studies focusing only on by neglect development a closed-loop flow sheet with regeneration c...

This paper presents the results of investigations concerning simultaneous removal Al(III), Cu(II), and Zn(II) from dilute aqueous solutions using ion precipitate flotation methods. The effects initial solution pH, surface active substance concentration, gas velocity on flotations’ efficiency course are studied. Experimental discussed in terms physicochemical aspects related to metal salts. indi...

Graphite ore collected from Hunan province, south China was characterized by chemical analysis, X-ray diffraction, and optical microscopy. Rougher and multi-stage flotation tests using a mechanical flotation cell and a flotation column containing an additional centrifugal force field were carried out to promote its grade and economic value. In rougher flotation, both the mechanical flotation ce...