T-shape separator

Gravity/affinity. Turnings or discs made from hydrophobic (or hydrophilic) materials can be placed on one side of the tube reaching the phase-separating unit (Fig. 8.12, centre) in order to assist the phase separation [158,166]. Consequently, a low inner-volume T-shaped separation unit can be designed, thus improving system performance. 

Typical phase separators, (a) T-shape separator, (b) Membrane-based separator. 

For interactions between two quadmpolar molecules which have and 0g of the same sign, at a fixed separation r, the angular factor in equation (Al.5.131 leads to a planar, T-shaped stmcture, 0 = 0, 0g = nil, (ji = 0, being preferred. This geometry is often seen for nearly spherical quadmpolar molecules. There are other planar (ij) = 0) configurations with 0 = jr/2-6g that are also attractive. A planar, slipped parallel stmcture,... 

Wei G T, Liu F K and Wang C R C 1999 Shape separation of nanometre gold particles by size-exclusion chromatography Anal. Chem. in press... 

The situation with respect to HCN is rather different, because it is no longer vahd to approximate the internal rotational constant, B, as independent of the angle 0. As discussed by Efstathiou et al. [10], the form of the most recent potential energy surface [48, 49] shows that the separation of the H atom from the CN center of mass decreases by about 30% between the HCN configuration and the T-shaped transition state, giving the optimized bending potential energy... 

Namba, S., Kanai, Y., Shoji, H., and Yashima, T. (1984) Separation of p-isomers from disubstituted benzenes by means of shape-selective adsorption on mordenite and ZSM-5 zeolites. 

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