Pilot-plant process for starch xanthide encapsulated pesticides
1979
Stout, E.L. | Shasha, B.S. | Doane, W.M.
A small pilot-plant batch process for the encapsulation of pesticides with crosslinked starch xanthate (starch xanthide) has been developed. Multipound quantities of several encapsulated pesticides have been prepared that have slow-release properties. Products were made from starch xanthates of varying degrees of substitution (0. 1 to 0. 3) and with various crosslinking agents (H//2O//2, NaNO//2, NaOCl, NaClO//2, and FeCl//3). Recovery of the pesticides as the encapuslated product ranged from 62% to nearly 100%. In a single experiment, processing water was recycled without apparent problems.
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