Flow regime aggregation

Flow regimes and corresponding devices used to study in vitro platelet aggregation... 

Figures 6 and 7 present the solids yield for canola and sunflower proteins during isoelectric precipitations, respectively. Sunflower protein yields from the flow-type precipitators increased with increases in mean residence times. This means that slower processes of particle growth by aggregation and diffusion follow an initial rapid nucleation process. About two minutes are required before the final yield is reached according to the results obtained from the tubular precipitator operating in the laminar flow regime and the batch precipitator. For canola proteins, mns in an MSMPR precipitator showed little changes in the yield with the mean residence time. This is because the mean residence times were longer (between 1.5 and 7.5 min) allowing the reaction to go to completion.

Experimental Procedure. The investigations were performed in scaled-down continuous-flow reactors (with a scale of about 1 40 relative to the size of technical reactors for aggregation and separation. The hydraulic regime was closely controlled in both coagulation and separation units through exact temperature control (T = 20 0.2 °C) and the maintenance of a constant hydraulic throughput. Suspensions were coagulated in tube-type reactors. 

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