Patents by Inventor Derek Gordon Lobley

Derek Gordon Lobley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of separating sulfuric acid from neutral sodium sulfate in spent chlorine dioxide generator liquor
    Patent number: 4104365
    Abstract: A method of separating sulfuric acid from spent chlorine dioxide generator liquor. The method comprises simultaneously adding to the spent liquor, a water-soluble organic compound selected from the group consisting of alcohols and ketones, and water. The resulting solid is separated to leave an aqueous solution of sulfuric acid. The method is of particular application in acid and salt cake recovery from the effluent of a chlorine dioxide generator operating at an acid normality of between 6 and 11.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: August 1, 1978
    Inventors: John Howard, Derek Gordon Lobley