Patents by Inventor Dietger Koppl

Dietger Koppl 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 the flotation of non-sulfidic minerals and ores
    Patent number: 8474627
    Abstract: A process for the flotation of non-sulfidic minerals or ores, is disclosed in which crushed crude minerals or ores are mixed with water and a collector to form a suspension, air is introduced into the suspension in the presence of a reagent system, and a floated foam containing the non-sulfidic mineral or ores is formed therein along with a flotation residue comprising the gangue polymeric esterquats as the collector polymeric esterquats. The polymeric esterquats are obtained by reacting alkanolamines with a mixture of monocarboxylic acids and dicarboxylic acids and quaternizing the resulting esters, optionally after alkoxylation.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: July 2, 2013
    Assignee: Cognis IP Management GmbH
    Inventors: Joaquin Bigorra Llosas, Dietger Koppl, Simone Hoffman-Doerr, Klaus Hinrichs
  • Process for the flotation of non-sulfidic minerals and ores
    Publication number: 20100078364
    Abstract: A process for the flotation of non-sulfidic minerals or ores, is disclosed in which crushed crude minerals or ores are mixed with water and a collector to form a suspension, air is introduced into the suspension in the presence of a reagent system, and a floated foam containing the non-sulfidic mineral or ores is formed therein along with a flotation residue comprising the gangue polymeric esterquats as the collector polymeric esterquats. The polymeric esterquats are obtained by reacting alkanolamines with a mixture of monocarboxylic acids and dicarboxylic acids and quaternising the resulting esters, optionally after alkoxylation.
    Type: Application
    Filed: January 17, 2008
    Publication date: April 1, 2010
    Applicant: COGNIS IP MANAGEMENT GMBH
    Inventors: Joaquin Bigorra Llosas, Dietger Koppl, Simone Hoffmann-Doerr, Klaus Hinrichs
  • Process for the separation of non-sulfidic minerals and ores from unwanted constituents of crude mineral and ore
    Patent number: RE46235
    Abstract: A process for the flotation of non-sulfidic minerals or ores, is disclosed in which crushed crude minerals or ores are mixed with water and a collector to form a suspension, air is introduced into the suspension in the presence of a reagent system, and a floated foam containing the non-sulfidic mineral or ores is formed therein along with a flotation residue comprising the gangue polymeric esterquats as the collector polymeric esterquats. The polymeric esterquats are obtained by reacting alkanolamines with a mixture of monocarboxylic acids and dicarboxylic acids and quaternizing the resulting esters, optionally after alkoxylation.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: December 13, 2016
    Assignee: Cognis IP Management CMBH
    Inventors: Joaquin Bigorra Llosas, Dietger Koppl, Simone Hoffmann-Doerr, Klaus Hinrichs