Patents Assigned to CSS Management Corp.
  • Metal recovery process
    Patent number: 4655829
    Abstract: Metal values are separated from arsenic sulfide ores in a hydrometallurgical oxidation process using a balanced reactant slurry. The molar concentration of As and Sb in the reactant slurry is controlled with respect to the molar concentration of Cu, Pb, and Zn in the slurry so that, upon reacting, soluble arsenic compounds or toxic arsenic vapors are not formed.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: April 7, 1987
    Assignee: CSS Management Corp.
    Inventor: Joseph B. Cashman