[PDF] Top 20 Solid-liquid mixing in mechanically agitated vessels

... Wichterle (1988) developed a theoretical model for solids suspension based on the comparison of the terminal settling velocity of a particle and the characteristic velocity of the agitat[r] ... See full document

... or solid-liquid suspension is a frequent operation in chemical and metallurgical ...extraction. Mixing plays a crucial role in these technologies, because it intensifies blending, homogenization, ... See full document

... phere at 1,100°C. The nanotubes mainly have diameters of 60 to 100 nm and lengths of 50 to 200 μm. Majority of the tubes have a bamboo-like structure (Figure 1c), but cylindrical nanotubes can also be easily found under ... See full document

... in vessels stirred by an impeller. Large agitated tanks with impellers are used in food industry, pharmacy, and also in mining industry, waste water treatment ... See full document

... well mixing of the majority of lignocellulose solids with minimum steam input in the pretreatment reactor was the major ...the mixing of hot steam with corn stover feedstock was rela- tively easy, because ... See full document

... the vessels for easy cleaning, suspension of solids, or improved efficiency (Houcine and others ...blending, solid-liquid mixing for doughs/pastes), relative positions in the vessel (close ... See full document

... the mixing of two immiscible liquids in turbulent flow is a common ...operation. Vessels agitated by mechanically in most applications are generally operated under batch conditions, and open ... See full document

... where Pq is the power number, H is the liquid height and 7C is a mathematical constant. Eckert et al, (1985) showed that for bulk flow conditions the impeller tip speed, had a more profound effect on drop size ... See full document

... the liquid phase mixing is fast compared to the mass ...the mixing had to be approximately three times faster than the mass transfer in order for the “well-mixed” liquid with respect to the ... See full document

... for liquid-solid contact, the overall contacting efficiency was only about 40 ...the liquid-solid mixing inside the fluid coking process was rather ...the liquid-solid ... See full document

... the mixing characteristics of gas-powder stirred ladle systems with through flow to determine optimum conditions for solid- liquid ...with solid particles into a vessel with a rectangular cross ... See full document

... Besides the conventional rotating impeller, an up-and-down moving disk impeller (vibromixer) has been employed in this work for providing mechanical agitation. Previous work (Hafez and Prochazka, 1974; Tojo et al., 1975; ... See full document

... Equations 3.9-3.21 provide a basis for examining the ways in which the break-up and aggregation of particles occur in a stirred vessel under turbulent flow. When particle sizes are significantly smaller than the ... See full document

... For filtration purposes the fixed bed section functions as a deep bed filter, and turbulence generated in the fluidized section scours the deposited solids, delaying the build-up of pressure drop. When the fixed portion ... See full document

... a liquid alloy so that the observed properties of mixing could be explained ...The mixing behaviour of binary liquid alloys is described as ordering or segregating depending on the nature of ... See full document

... as liquid-liquid extraction , solid-liquid extraction (3), liquid-phase Micro-extraction (4), solid-phase micro extraction (5), molecular imprinted poly- mer phase extraction ... See full document

... the mixing time (MNP and drug interaction period) and the amount, the type of MNPs, the volume of desorption solution and the washing period are the parameters that are optimized for every MSPE ... See full document

... of mixing time correlations and divided them into five categories: (i) models based on experimental data with various design and operating parameters; drawbacks of these models are due to limited application and ... See full document

... The amount of actual ethanol produced in the agitated and static fermentations was less than was expected (62.13 and 61.67 g/L, respectively). Some data explain why this happens: about 5% of total sugars are ... See full document

... flowing through a rectangular orifice at the end of a r e c t ­ angular tube. Under these conditions the flow through the orifice is constricted in o n l y one plane and the streamlines converge to form a region of ... See full document