Monomer arrangement, three-tank

Whereas the two-tank arrangement permits monomer feed profiles which vary smoothly in one direction, the three-tank scheme leads to inflections and concentration reversals as illustrated in Figure 4. Such reversals are useful in preparing hard-soft-hard, hydrophilic-hydrophobic-hydrophilic polymer variations and the like. In addition, three tank power feed has been useful as a means of calculating monomer inventory in copolymerization experiments (4). 

WhiTe other monomer tank arrangements can be devised, the two-and three-tank configurations described here can generate most of the monomer feed profiles likely to be of interest. Variable feed rates can also be employed to generate similar profiles, but the use of constant feed rates simplifies laboratory and plant operations. 

Figure 3. Three-tank monomer feed arrangement in which the near and middle tanks are stirred during operation...

Figure 4. Monomer concentration profiles of a single monomer in the feed stream entering the reactor as a function of time for the three-tank arrangement...

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See also in sourсe #XX -- [ , ]

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