Patents by Inventor Imme Witte

Imme Witte 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 PREPARING POTASSIUM IRON(III) ETHYLENEDIAMINETETRAACETIC ACID COMPLEX SALT
    Publication number: 20260265174
    Abstract: Disclosed herein is a process for preparing the potassium salt of iron(III) ethylenediaminetetraacetic acid complex (KFe(III)EDTA) by partially neutralizing the acid form of EDTA with a basic potassium salt, reacting the partially neutralized EDTA with a Fe3O4 source to a potassium iron ethylenediaminetetraacetic acid complex salt containing both iron (II) and (III), oxidizing the iron(II) contained therein with an oxygen-based oxidation agent, and adjusting the pH to from 5 to 7 with a basic potassium salt.
    Type: Application
    Filed: April 17, 2024
    Publication date: September 10, 2026
    Inventors: Frank BACHMANN, Doris KREMZOW-GRAW, Paul KLINGELHOEFER, Imme WITTE, Peter OECHSLE, Sarah Veronika ILLIES
  • Concentrate quality
    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