CMR rings

Figure 4-24. Relative deviation S(Ap/H) of experimental data for determination of pressure drop (Ap/H)exp up to flooding point acc. to Eq. (4-49) and (4-54), valid for CMR rings by Koch-Glitsch made of metal and plastic. No. of system see Table 2 -2. Test conditions see Table 4-4.

Third Genoration (Late 1970 s- 1990 si CMR Ring Nutter Ring IMTP Ring Fleximax... 

Glitsch performance data for their Cascade Mini-Ring are shown in Figures 9-34A, B, and C for HETP with other published data and pressure drop for comparison with Pall rings and sieve trays. Note the abbreviation CMR stands for Cascade Mini-Rings. 

GMR UMR and CMR For each nucleotide, the more common name is followed by the complete name in parentheses. All abbreviations assume that the phosphate group is at the 5 position. The nucleoside portion of each molecule is shaded in light red. In this and the following illustrations, the ring carbons are not shown. 

The differential performance between No3 Metal CMR and the other rings in this test is increased by a further 10/15% in K2C03 systems. This is confirmed by extensive feed-back data from operating plants up to 13 ft (4 m) diameter. 

Figure 8.4 Third-generation plastic random packing , to) Cascade MiniRing (CMR ) (6) Hiflow ring. (Pori a, courtesy of Glitsch, Inc. port b, courtesy of Rauschert Industries, Inc.)...

Chempak . 427, 429. 500, 616, 645, 885 Chemstation, 180 Chien s minimum reflux, 103, 104 Chien s minimum stages, 105 CMR (see Cascade Mini-Ring) Colburn ... 

The most significant term in Eq. 11 is the molar refractivity of the m-substituent at the phenyl ring. Since MR-Ri is primarily a measure of bulk and of polarizabihty of the substituent, the positive coefficients with both terms MR-Ri and CMR suggest that size of Ri-substituent as well as of the whole molecule will be conducive to the activity. The parameter Bs-r is the Sterimol parameter for the maximum-width of the first atom of the group R at the N-heterocyclic ring. This points out a favorable role of the first atom through some steric interaction. 

For in vitro data, Eq. 35 was derived. Parabolic dependence on CMR (molar refractivity) provided an optimum value for molar refractivity. MR represents the molar refractivity of the molecules. IDN is an indicator variable, which takes the value of 1 for the compounds that contain an heterocycUc ring with nitrogen. It seems that this type of ring is the best substituent compared to the... 

Structure elucidation of the natural tetrahydrofurofurans by chemical methods, particularly hydrogenolytic cleavage of the heterocyclic ring to simpler identifiable moieties has been well reviewed (146,147). Reliable consignment of configuration has now been considerably aided by PMR, CMR and NOE experiments and significant data has been usefully tabulated (148). 

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