Patents by Inventor Daniel CHIPFUNHU

Daniel CHIPFUNHU 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).

  • Alkylated triphenyl phosphorothionates as selective metal sulphide collectors
    Patent number: 11612897
    Abstract: The present invention is directed to a method for selectively recovering a sulphide mineral from an ore applying a collector being an alkylated triphenyl phosphorothionate. Further, the present invention is directed to the use of said alkylated triphenyl phosphorothionates to separate a target mineral from iron sulphide and/or silicate gangue.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: March 28, 2023
    Assignee: BASF SE
    Inventors: Adrian Mauricio Villanueva Berindoague, Alexej Michailovski, Scott Alexander Dickie, Daniel Chipfunhu
  • A COLLECTOR COMPOSITION
    Publication number: 20220266262
    Abstract: The present invention relates to a collector composition for the beneficiation of lithium silicates and magnesium silicates from an ore comprising different silicate minerals, their use in flotation processes and a method for the beneficiation of lithium silicates- and magnesium silicates-containing minerals using said collector composition.
    Type: Application
    Filed: August 28, 2020
    Publication date: August 25, 2022
    Inventors: Alexej Michailovski, Daniel Chipfunhu, Scott Alexander Dickie
  • IRON CHELATORS AS ACTIVATORS IN ALKALINE FLOTATION CIRCUITS
    Publication number: 20210260603
    Abstract: The present invention is directed to a method for selectively recovering a mineral from an ore applying a promoter being a substituted ethylene diamine. Further, the present invention is directed to the use of said substituted polymeric alkylenediamine to separate a target mineral from an ore.
    Type: Application
    Filed: July 3, 2019
    Publication date: August 26, 2021
    Inventors: Adrian Mauricio Villanueva Berindoague, Dale Barron, Daniel Chipfunhu, Alexej Michailovski, Scott Alexander Dickie, Marta Reinoso Garcia, Deris Prawira
  • ALKYLATED TRIPHENYL PHOSPHOROTHIONATES AS SELECTIVE METAL SULPHIDE COLLECTORS
    Publication number: 20200147619
    Abstract: The present invention is directed to a method for selectively recovering a sulphide mineral from an ore applying a collector being an alkylated triphenyl phosphorothionate. Further, the present invention is directed to the use of said alkylated triphenyl phosphorothionates to separate a target mineral from iron sulphide and/or silicate gangue.
    Type: Application
    Filed: May 23, 2018
    Publication date: May 14, 2020
    Applicant: BASF SE
    Inventors: Adrian Mauricio VILLANUEVA BERINDOAGUE, Alexej MICHAILOVSKI, Scott Alexander DICKIE, Daniel CHIPFUNHU
  • AMPHOTERIC POLYMER, PROCESS FOR PRODUCTION THEREOF, AND USE THEREOF, TO TREAT AQUEOUS DISPERSIONS
    Publication number: 20190100448
    Abstract: A polymer formed from a monomer mixture comprising, (a) from 77 to 88 mol % of acrylamide or methacrylamide; (b) from 11.9 to 18 mol % of 2-acrylamido-2-methylpropane sulphonic acid, or salts thereof; and (c) from 0.1 to 5 mol % of a quarternary ammonium salt of dimethylaminoethyl acrylate or dimethylaminoethyl methacrylate, in which the quaternary ammonium salt of the monomer component (c) is the methyl chloride salt or dimethyl sulphate salt, preferably the methyl chloride or dimethyl sulphate quaternary ammonium salt of dimethylaminoethyl acrylate, more preferably the methyl chloride quaternary ammonium salt of dimethylaminoethyl acrylate, and in which the polymer has a reduced specific viscosity of at least 5 dL/g. The invention also provides a process for preparing this polymer and also a process for treating an aqueous slurry comprising particulate material employing said polymer.
    Type: Application
    Filed: April 20, 2017
    Publication date: April 4, 2019
    Applicant: BASF SE
    Inventors: Daniel CHIPFUNHU, Holger MISSLITZ, Tara Michele HASKELL