Patents by Inventor Romedio Sandrin

Romedio Sandrin 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).

  • Integrated process for producing tert.butyl alkyl ethers and butene-1
    Patent number: 4513153
    Abstract: Tert.butyl alkyl ethers are produced from a C.sub.4 hydrocarbon feedstock containing isobutene, and the butene-1 is recovered at high purity by extractive distillation of the isobutene-free C.sub.4 hydrocarbon stream in the presence of a solvent chosen from acetone, acetonitrile, dimethylformamide, methanol, n-methylpyrrolidone, formylmorpholine and furfural.After removing the solvent, the extract is rectified, and the butene-1 separates as overhead product of high purity.
    Type: Grant
    Filed: May 3, 1983
    Date of Patent: April 23, 1985
    Assignee: Snamprogetti S.p.A.
    Inventor: Romedio Sandrin