Patents by Inventor Rostislav Kamkin

Rostislav Kamkin 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).

  • Publication number: 20230066944
    Abstract: The invention relates to a method for manufacturing a concentrate enriched in a phosphate mineral content from an ore, which contains a phosphate mineral and a non-phosphate mineral, by a flotation, which method comprises the step of adding a surfactant system comprising (A) a fatty acid, (B) a blend of ethoxylated and non-ethoxylated alcohols, which is obtainable by blending (i) a reaction product of a first C12-C16 aliphatic alcohol having an average degree of branching of 1.9 to 3.5 and 10 to 20 equivalents of ethylene oxide, and (ii) a second C12-C16 aliphatic alcohol having an average degree of branching of 1.9 to 3.5, wherein the amount of (i) is 80 to 95 wt. % and the amount of (ii) is 5 to 20 wt. % and wt. % is based on the overall weight of the mixture of ethoxylated and non-ethoxylated alcohols, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a use of the surfactant system as flotation collector is disclosed.
    Type: Application
    Filed: January 7, 2021
    Publication date: March 2, 2023
    Inventors: Susan Carvalho, Alexej Michailovski, Rostislav Kamkin, Bettina Sobotka
  • Publication number: 20220266263
    Abstract: Presently claimed invention is directed to a collector composition for the beneficiation of a mineral comprising at least one component (A) selected from the group consisting of anionic (A1) surfactants, cationic (A2) surfactants, ampholytic (A3) surfactants and non-ionic surfactants (A4), and at least one component (B) selected from the group consisting of alkoxylated polyalkyleneimine (B1) and alkoxylated hexamethylene diamine (B2).
    Type: Application
    Filed: July 24, 2020
    Publication date: August 25, 2022
    Inventors: Alexej Michailovski, Gabriela Budemberg, Rostislav Kamkin, Juergen Tropsch
  • Publication number: 20220161276
    Abstract: The present invention relates to a collector composition for the beneficiation of phosphates from phosphate-containing mineral, their use in flotation processes and to a method for the beneficiation of phosphates using said collector composition.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 26, 2022
    Inventors: Rostislav Kamkin, Alexej Michailovski