Dow C R . I. file M 6 I ———^^
—JIIIIIIMHHHHJI
CHEMICAL ISOLATION NEW A N D HIGHLY EFFECTIVE
chemical
isolation methods have been developed through ion exchange chromatography. The two processes presented here are notable not only for their high resolving power but also for their low cost of operation. In both of these processes, the fact that no chemical regenerant is needed means that each may be profitably employed where ordinary ion exchange methods would be impractical.
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EVEN THOUGH ion exchange resins have proven themselves to be versatile tools in the chemical processing industry, Dow research scientists are continually broadening their usefulness. Entirely new concepts of utilizations such as the elimination of the need for chemical regenerants have increased the economic attractiveness of ion exchange processing. The ion exclusion process, for example, has lowered the cost of the production of U.S.P. glycerine. Moreover, the development of new resin structures has provided chemical processors with better ways of solving long-standing purification problems.
