Patents by Inventor Arthur F. Colombo

Arthur F. Colombo 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).

  • Process for scavenging iron from tailings produced by flotation beneficiation and for increasing iron ore recovery
    Patent number: 4192738
    Abstract: There is disclosed a process for scavenging iron from tailings produced by the flotation beneficiation of iron ore. This process includes the step of scavenging the flotation tailings using wet high-intensity magnetic separation (WHIMS). There is also disclosed a process for increasing the recovery of iron ore in a flotation beneficiation process. This iron ore recovery process includes the steps of feeding the magnetic concentrate produced by the scavenging process to a flotation system and then carrying out an additional flotation step.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: March 11, 1980
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Arthur F. Colombo, David M. Hopstock