Patents by Inventor Helmut Junkermann

Helmut Junkermann 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 detoxification of waste water containing phenol, phenol derivative or phenol and formaldehyde
    Patent number: 4370241
    Abstract: Waste water containing phenol, phenol derivatives or phenol plus formaldehyde is purified by treating the waste water with hydrogen peroxide and either iron, copper or the complex salt sodium iron (III) ethylenediamine tetraacetate.
    Type: Grant
    Filed: November 27, 1979
    Date of Patent: January 25, 1983
    Assignee: Degussa AG
    Inventors: Helmut Junkermann, Horst Kruger
  • Process for the detoxification of waste water containing phenol, phenol derivative or phenol and formaldehyde
    Patent number: 4340490
    Abstract: Waste water containing phenol, phenol derivatives or phenol plus formaldehyde is purified by treating the waste water with hydrogen peroxide and either iron, copper or the complex salt sodium iron (III) ethylenediamine tetraacetate.
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: July 20, 1982
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Helmut Junkermann, Horst Kruger
  • Process for deodorizing liquid manure and removing harmful gases
    Patent number: 4160656
    Abstract: Liquid manure is deodorized and harmful gases removed therefrom by introducing formaldehyde and a peroxy compound into the manure one or more times.
    Type: Grant
    Filed: May 2, 1978
    Date of Patent: July 10, 1979
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventor: Helmut Junkermann
  • Process for the purification of phenol and phenol formaldehyde containing waste water
    Patent number: 4157300
    Abstract: Phenol or phenol-formaldehyde containing waste water is purified with chlorine dioxide by treating the waste water with alkali or alkaline earth metal chlorite in the presence of formaldehyde and the weight ratio of formaldehyde to phenol is between 0.5 to 2:1 and the mole ratio of the sum of phenol + formaldehyde to chlorite is between 1:1.2 to 1:2, whereupon the treated water is decolorized, in a given case in known manner.
    Type: Grant
    Filed: December 2, 1977
    Date of Patent: June 5, 1979
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Helmut Junkermann, Volker Hafner
  • Process for detoxification of formaldehyde containing waste waters
    Patent number: 4104162
    Abstract: Formaldehyde containing waste water is detoxified by treating the waste water with hydrogen peroxide in the presence of alkali at an initial temperature of 10.degree.-35.degree. C. In an alternative and preferred form of the invention the waste water is heated to a temperature of at least 50.degree. C and then 10-35% of the hydrogen peroxide equivalent to the formaldehyde is added.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: August 1, 1978
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Koessler
    Inventors: Helmut Junkermann, Heinrich Schwab
  • Preservative for fodder, mixed fodder and silage
    Patent number: 4042716
    Abstract: Fodder, mixed fodder and silage are preserved with acrylic acid, methacrylic acid or esters or salts of such acids.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: August 16, 1977
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Heidrun Bertram, Rudolf Fahnenstich, Helmut Junkermann, Gerhard Pohl, Herbert Tanner