Patents by Inventor Bruno De Maglie

Bruno De Maglie 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 producting high purity butene-1 with a low energy consumption
    Patent number: 4718986
    Abstract: High purity butene-1, in particular polymerization grade butene-1, is obtained by means of a two-stage fractionation of a C.sub.4 hydrocarbon stream comprising butene-1 which is substantially free from butadiene.The first stage of the fractionation process allows practically all the isobutane contained in the C.sub.4 batch to be separated as the top stream.The bottom phase of the first stage of fractionation is supplied to the second stage of fractionation thus obtaining high purity butene-1 as the top fraction, and the remaining components as the bottom phaseAccording to the process of the invention, vapors of butene-1 obtained as the top stream from the second stage of fractionation are compressed and the resultant heat of condensation is used for operating the reboilers of the two fractionation stages.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: January 12, 1988
    Assignee: Snamprogetti, S.p.A.
    Inventors: Renzo Comiotto, Bruno De Maglie