Patents by Inventor Manfred Z. Hausen

Manfred Z. Hausen 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).

  • Method for removing n-butyraldehyde from gas streams
    Patent number: 4714784
    Abstract: The invention relates to a method for removing n-butyraldehyde from gas streams. It is characterized by washing with dilute aqueous alkali in a mass transfer apparatus. According to the invention, n-butyraldehyde can be removed from gas streams in the proportion of >90%, with operation at 0.degree.-40.degree. C. in the absence of added solubilizing agents.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: December 22, 1987
    Assignee: Huls Aktiengesellschaft
    Inventors: Eckhard Moeller, Wolfgang H. E. Mueller, Manfred Z. Hausen
  • Process for the continuous manufacture of n-butyraldehyde by selective hydrogenation of crotonaldehyde in the liquid phase in the presence of a palladium-aluminum oxide catalyst
    Patent number: 4450300
    Abstract: For the continuous manufacture of n-butyraldehyde by selective hydrogenation of crotonaldehyde, the hydrogenation is conducted in the liquid phase in the presence of a palladium-aluminum oxide supported catalyst containing the palladium in the outer layer of the supporting grain of a thickness of 0.05-0.2 mm. The palladium content of this catalyst is 0.1-0.6% by weight. The aluminum oxide support, with a specific pore volume of 0.4-0.6 cm.sup.3 /g, has 40-60% of its pores of a diameter of >0.5 nm and an internal surface area of 130-160 m.sup.2 /g. The hydrogenation is conducted under absolute pressures of 5-50 bar and at temperatures of 20.degree.-100.degree. C. The resultant n-butyraldehyde is of a high purity without interfering by-products.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: May 22, 1984
    Assignee: Chemische Werke Huels Aktiengesellschaft
    Inventors: Lothar Fischer, Manfred Z. Hausen, Kurt Wember
  • Process for the continuous preparation of butane-1,4-diol
    Patent number: 4268695
    Abstract: A continuous process for the preparation of butane-1,4-diol comprises, in a one-stage process, catalytically hydrogenating a solution of maleic anhydride in a monohydric aliphatic alcohol, in the presence of hydrogen and a copper chromite catalyst.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: May 19, 1981
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventors: Erhard Lange, Manfred Z. Hausen