separation method that is widely used in coal beneficiation for the separation of fine coal particles from associated minerals in water slurries. Since the cumulative recovery of a component in the concentrate is proportional to flotation time, the flotation process can be considered as a time-rate recovery process (Emad, Mohammad, and Bahram, 2010). Therefore, the general mathematical flotatio...

For a group of nonionic surfactants with polar head groups synthesized by the copolymerization ethylene oxide and carbon dioxide, potential for their application in foam flotation microplastic particles was investigated. Their performance compared to conventional that correlated adsorption behavior at water–air surface through maximum-bubble-pressure technique. The carbonate content surfactant ...

Abstract Deinked pulp flotation column has been applied in wastepaper recycling. Bubble size in deinked pulp flotation column is very important during the flotation process. In this paper, bubble images of deinked pulp flotation column were first caught by digital camera, and then the bubbles were detected by using a detection algorithm based on sparse and redundant image processing. The result...

Abstract The separation of fine mineral particles, especially using environmentally friendly approaches, is one the main problems in processing low-grade ores and re-processing mining tailings. This work assesses potential biosurfactants as collectors flotation ultrafine (smaller than 20 μm) particles hematite malachite. As biosurfactants, we test acetylated acidic (ac-ASL) lactonic sophorolipi...

Purpose. Study on the possibility of extracting coal underfire particles from ash thermal power station by flotation. Intensification enrichment process particles, development a mathematical model for forecasting indicators function. Methodology. The method fractional flotation was used to study kinetics extraction valuable component. technique planned experiment applied, including central comp...

It is possible to obtain good performance from a flotation plant but it has proved difficult to maintain such performance. Recovery rates on a flotation plant can be around 90% and often lower, making flotation one of the least efficient processes in the concentration path. Hence, over the last few decades much research and development has gone into the stabilization and optimization of flotati...

In this paper, we build an air conveyor with newly developed vortex bearing elements, and study the flotation precision of the front-end of the substrate in quasi-static flotation transport. We experimentally discuss the three influential factors: air supply pressure, thickness of the substrates and installing direction of the vortex bearing element. We find that during the process of transport...

Removal of dye from wastewater has been investigated using the electrocoagulation method. Batch experiment conducted to remove color synthetically prepared acid red 87dye wastewater. Stainless steel and nickel foam sheets are used as cathode anode, respectively. The effect some operating parameters, such current density, initial concentration supporting electrolyte concentration, on removal stu...

AIMS To evaluate a safe sputum processing method for detection of tuberculosis in developing countries. METHODS A sample processing method was developed in which acid fast bacilli were killed with 1% sodium hypochlorite and concentrated by flotation on a layer of xylene before staining by the Ziehl Neelsen or auramine O methods. RESULTS Best results were obtained by auramine O staining afte...