Abstract: A process for the recovery and purification of 1,1,2-trichloroethane from the intermediates produced for the production of ioversol for reuse thereof.
Abstract: The use of a minimal excess of acetoxyacetylchloride as a reagent in the synthesis of N,N'-bis(2,3-dihydroxypropyl)-5-N-(2-hydroxy-ethyl)glycolamido-2,4,6-triio doisophthalamide.
Type:
Grant
Filed:
March 25, 1994
Date of Patent:
December 6, 1994
Assignee:
Mallinckrodt Medical PMC
Inventors:
William Z. McCarthy, Mills T. Kneller, Youlin Lin, Rebecca A. Wallace, David H. White
Abstract: A process for the separation of amyl acetate, a high boiling point solvent from various high boiling point corrosive impurities, namely, bromoethyl acetate, in an industrial setting to allow for reuse through continuous recycling thereof.
Type:
Grant
Filed:
February 26, 1993
Date of Patent:
October 18, 1994
Assignee:
Mallinckrodt Medical PMC
Inventors:
William Z. McCarthy, Michael J. Gentilcore
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