Patents Represented by Attorney Ralph D'Alesandro

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  • Process for the production of high purity hydroxylammonium nitrate
    Patent number: 5213784
    Abstract: A process for the production of concentrated and highly purified hydroxylammonium nitrate is disclosed whereby diluted nitric acid is added to a solution containing excess aqueous hydroxylamine while the resultant mixture is cooled and agitated to obtain uniform mixing to avoid locally high concentrations of nitric acid. The mixed solution is maintained at a temperature of less than about 60.degree. Centigrade.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: May 25, 1993
    Assignee: Olin Corporation
    Inventor: David W. Cawlfield