Patents by Inventor Anthony Mumba

Anthony Mumba 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).

  • Hydrometallurgical process using multi-stage nanofiltration
    Patent number: 10174404
    Abstract: Nanofiltration can be used to improve a hydrometallurgical process in which valuable metal is extracted from ore or tailings by leaching with a suitable lixiviant. The process requires at least two nanofiltration subsystems in which raffinate from a solvent extraction process is treated in a nanofiltration subsystem, after which permeate therefrom is combined with a pregnant solution stream and is treated in a second nanofiltration subsystem. This arrangement can lead to advantages in the amount of lixiviant recovered, in the raw materials required, in the effluent produced, in the size of plant, and in overall cost.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: January 8, 2019
    Assignee: Chemetics Inc.
    Inventors: Siamak Lashkari, Felix Mok, Ganapathy Ramasubbu, Anthony Mumba
  • HYDROMETALLURGICAL PROCESS USING MULTI-STAGE NANOFILTRATION
    Publication number: 20150247218
    Abstract: Nanofiltration can be used to improve a hydrometallurgical process in which valuable metal is extracted from ore or tailings by leaching with a suitable lixiviant. The process requires at least two nanofiltration sub-systems in which raffinate from a solvent extraction process is treated in a nanofiltration subsystem, after which permeate therefrom is combined with a pregnant solution stream and is treated in a second nanofiltration sub-system. This arrangement can lead to advantages in the amount of lixiviant recovered, in the raw materials required, in the effluent produced, in the size of plant, and in overall cost.
    Type: Application
    Filed: August 14, 2013
    Publication date: September 3, 2015
    Applicant: Chemetics Inc.
    Inventors: Siamak Lashkari, Felix Mok, Ganapathy Ramasubbu, Anthony Mumba