Patents by Inventor Alexej Michailovski

Alexej Michailovski 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: 20240082854
    Abstract: The invention relates to a method for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by a reverse flotation, which method comprises the step of (c) adding a collector composition comprising (i) an amidoamine, which contains a compound of formula I or a salt of a protonated compound of formula I and an anion; (ii) an ethoxylate, which contains a compound of formula II RE—O—(—CH2—CH2—O—)n—H??(II), wherein RE is a linear or mono-branched aliphatic C10-C20 alkyl or a linear aliphatic C10-C20 alkenyl, and n is an integer from 1 to 12, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliary to obtain an aqueous mixture.
    Type: Application
    Filed: December 22, 2021
    Publication date: March 14, 2024
    Inventors: Gabriela Budemberg, Alexej Michailovski, Bettina Sobotka
  • Publication number: 20240066528
    Abstract: The invention relates to a method for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by a reverse flotation, which method comprises the step of (c) adding a collector composition comprising (i) an amidoamine, which contains a compound of formula I or a salt of a protonated compound of formula I and an anion, and (ii) an alkyl polyglycoside, which contains a compound of formula II wherein RAP is a linear or branched C6-C22 alkyl or a linear C6-C22 alkenyl, G1 is a monosaccharide residue having 5 or 6 carbon atoms, x is an average value from 1 to 10, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliary to obtain an aqueous mixture.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 29, 2024
    Inventors: Gabriela Budemberg, Alexej Michailovski, Andre Soares Braga, Bettina Sobotka, Dorival De Masi Neto, Frederic Bauer
  • Publication number: 20230302463
    Abstract: Described herein are methods for flotation of an ore. The methods include providing an aqueous suspension having an ore in the form of particles, water, and a first frothing agent including a poly(tetrahydrofuran), in a flotation cell to obtain a provided aqueous suspension. The method further includes introducing air into the provided aqueous suspension to obtain a froth. Further described herein are specific aqueous suspensions having ore particles and poly(tetrahydrofuran) and uses of poly(tetrahydrofuran) as a frothing agent for an aqueous suspension having an ore in the form of particles.
    Type: Application
    Filed: July 27, 2021
    Publication date: September 28, 2023
    Inventors: Graeme Levi Stewart, Alexej Michailovski, Yoav Zuk
  • Publication number: 20230249197
    Abstract: Described herein are methods for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by a reverse flotation. The method includes adding a first amine to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. The first amine (A) may be a compound of formula I a salt of a protonated compound of formula I and a first anion or a mixture thereof. A second amine, which is a compound of formula II a salt of a protonated compound of formula II and a second anion or a mixture thereof, can be further added. Further described herein are specific compositions of the first amine (A) and the second amine (B) for a use as a flotation collector.
    Type: Application
    Filed: August 10, 2021
    Publication date: August 10, 2023
    Inventors: Alexej Michailovski, Gabriela Budemberg, Bettina Sobotka, Radoslaw Kierat
  • 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
  • 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: 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
  • 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: 20220227936
    Abstract: The present invention relates to the flotation of non-sulfidic minerals and ores. Particularly the present invention relates to a collector for the beneficiation of non-sulfidic minerals and ores.
    Type: Application
    Filed: June 1, 2020
    Publication date: July 21, 2022
    Inventors: Alexej Michailovski, Anna Maria Mueller-Cristadoro, Maria Escoda Maregenat
  • Publication number: 20220212204
    Abstract: The invention relates to a method for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by reverse flotation, which method comprises the step of (c) adding a compound of formula I wherein R1 is C9-C22 alkyl or alkenyl, which is linear or branched, R2 is H, C1-C4 alkyl, which is linear or branched, R3 is —X—NH2, H or C1-C4 alkyl, which is linear or branched, and X is C2-C4 alkylene, which is linear or branched, or a salt of a protonated compound of formula I and an anion, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a method for manufacturing a specific group of compounds of formula I, i.e. compounds of formula 1-X wherein R1 is C9-C15 alkyl, which is linear or branched, R2 is H, R3 is —X—NH2 and X is C2-C4 alkylene, which is linear or branched, is disclosed.
    Type: Application
    Filed: April 27, 2020
    Publication date: July 7, 2022
    Inventors: Alexej Michailovski, Alexander Panchenko, Hannes Ferdinand Zipfel, Martin Ernst, Gabriela Budemberg, Stefanov Nedko Drebov, Sylvia von Krog, Tamara Kuelzer, Long Phan
  • Publication number: 20220176385
    Abstract: The presently claimed invention relates to a process for the beneficiation of coal and other hydrophobic materials, wherein a collector composition comprising by-products obtained by hydroformylation of octene isomers as a first component and diesel, kerosene and/or C8-C20 olefins as a second component is used.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 9, 2022
    Inventors: Scott Alexander Dickie, Qian Bai, Adrian Mauricio Villanueva Berindoague, Alexej Michailovski
  • 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
  • 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
  • Patent number: 11072840
    Abstract: The present invention relates to the use of hydrophobically associative copolymers as binders for pelletizing metal containing ores such as iron containing ores. The copolymers comprise monomer units derived from at least one hydrophobically as sociative monomer, preferably at least one unsaturated hydrophobically associating monomer.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: July 27, 2021
    Assignee: BASF SE
    Inventors: Adrian Mauricio Villanueva Berindoague, Alexej Michailovski, Gregor Brodt, Sylvia Von Krog, Dominic Rene Bechen, Rainer Packe-Wirth, Shane Hoff
  • Publication number: 20210197211
    Abstract: The present invention relates to a collector composition for beneficiation of phosphates from phosphate containing ores comprising at least one component A, at least one component B, and at least one component C, wherein the component A comprises unsaturated fatty acids having 12 to 22 carbon atoms, the component B comprises alkoxylated branched alcohols as non-ionic surfactant which comprise two different types of alkoxy moieties, and the component C comprises sulfur-containing surfactants. The present invention further relates to the use of said collector composition in flotation processes, and to a method for beneficiation of phosphates using said collector composition.
    Type: Application
    Filed: August 29, 2019
    Publication date: July 1, 2021
    Inventors: Alexej Michailovski, Adrian Mauricio Villanueva Berindoague, Sylvia von Krog, Tamara Kuelzer
  • Publication number: 20200407820
    Abstract: The present invention relates to the use of copolymers as binders for pelletizing metal containing ores such as iron containing ores. The copolymers comprise monomer units derived from at least one monomer C of formula (I).
    Type: Application
    Filed: February 22, 2018
    Publication date: December 31, 2020
    Applicant: BASF SE
    Inventors: Bjoern LANGLOTZ, Shane HOFF, Adrian Mauricio VILLANUEVA BERINDOAGUE, Alexej MICHAILOVSKI, Frank DIERSCHKE
  • Patent number: 10807100
    Abstract: The present invention relates to a process for the separation of at least one valuable matter containing material from a dispersion comprising said at least one valuable matter containing material and at least one second material. The process according to the present invention comprises at least the steps (A) to (E) and the optional steps (F) to (H) which are described herein.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: October 20, 2020
    Assignee: BASF SE
    Inventors: Igor Shishkov, Wolfgang Rohde, Alexej Michailovski, Andreas Luz, Reinhold Rieger, Petra John, Imme Witte
  • 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
  • Patent number: 10549287
    Abstract: The present invention relates to a process for the separation of at least one hydrophobic or hydrophobized material from a dispersion comprising said at least one hydrophobic or hydrophobized material and at least one second material. The process according to the present invention comprises the steps (A) to (D) which are described herein.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: February 4, 2020
    Assignee: BASF SE
    Inventors: Wolfgang Rohde, Alexej Michailovski, Igor Shishkov, Reinhold Rieger, Gerardo Incera Garrido, Piyada Charoensirisomboon, Darren Megaw, David Johann Gilbert
  • Publication number: 20190010577
    Abstract: The present invention relates to the use of hydrophobically associative copolymers as binders for pelletizing metal containing ores such as iron containing ores. The copolymers comprise monomer unitsderived from at least one hydrophobically as sociative monomer, preferably at least one unsaturated hydrophobically associating monomer.
    Type: Application
    Filed: September 1, 2016
    Publication date: January 10, 2019
    Applicant: BASF SE
    Inventors: Adrian Mauricio VILLANUEVA BERINDOAGUE, Alexej MICHAILOVSKI, Gregor BRODT, Sylvia VON KROG, Dominic Rene BECHEN, Rainer PACKE-WIRTH, Shane HOFF