Patents by Inventor Ermanno Cinelli

Ermanno Cinelli 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 separation of diolefins from mixtures containing the same
    Patent number: 4140587
    Abstract: A multi-stage process for the solvent extraction of isoprene or cyclopentadiene from a mixed feed stock containing the same, piperylene and C-5 saturated and olefinic hydrocarbons is disclosed wherein the feed stock is contacted with N-formyl morpholine and C-5 saturated and olefinic hydrocarbons are separated therefrom in a first stage, the solvent, piperylene and cyclopentadiene present in the feed stock are separated from the isoprene in a second stage, and the solvent is recovered and recycled to the second stage.
    Type: Grant
    Filed: February 18, 1977
    Date of Patent: February 20, 1979
    Assignee: Snamprogetti, S.p.A.
    Inventors: Giancarlo Paret, Ermanno Cinelli
  • Process for the separation of diolefins from mixtures containing the same
    Patent number: 4009084
    Abstract: A multi-stage process for the solvent extraction of butadiene from a mixed feed stock containing butadiene, C-4 saturated and olefinic hydrocarbons and acetylenic compounds is disclosed wherein the feed stock is contacted with N-formyl morpholine and C-4 saturated and olefinic hydrocarbons are separated therefrom in a first stage and, in a second stage, the solvent and acetylenic compounds present in the feed stock are respectively separated from one another.
    Type: Grant
    Filed: January 15, 1975
    Date of Patent: February 22, 1977
    Assignee: Snam Progetti S.p.A.
    Inventors: Giancarlo Paret, Ermanno Cinelli