Patents by Inventor Carl Alexander Diaz

Carl Alexander Diaz 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 recovering acetonitrile from acrylonitrile waste streams
    Patent number: 11111209
    Abstract: A process for producing a high-purity acetonitrile product from a low-purity acetonitrile feedstock streams. In particular, the present disclosure relates to a process for producing a sales-grade, high purity acetonitrile by (a) distilling the feedstock stream in a to yield a crude acetonitrile stream, (b) treating the crude acetonitrile stream to produce an intermediate acetonitrile stream, (c) purifying the intermediate acetonitrile stream in a pressure swing distillation system to produce a recycle stream and an acetonitrile product stream, (d) recycling the recycle stream to the first distillation column, and (e) distilling the acetonitrile product stream to yield a purified acetonitrile product stream of at least 98 wt. % acetonitrile.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: September 7, 2021
    Assignee: Ascend Performance Materials Operations LLC
    Inventors: Basil Michael, Carl Alexander Diaz, Billy Nelson, Kyle Kissell
  • PROCESS FOR RECOVERING ACETONITRILE FROM ACRYLONITRILE WASTE STREAMS
    Publication number: 20200157044
    Abstract: A process for producing a high-purity acetonitrile product from a low-purity acetonitrile feedstock streams. In particular, the present disclosure relates to a process for producing a sales-grade, high purity acetonitrile by (a) distilling the feedstock stream in a to yield a crude acetonitrile stream, (b) treating the crude acetonitrile stream to produce an intermediate acetonitrile stream, (c) purifying the intermediate acetonitrile stream in a pressure swing distillation system to produce a recycle stream and an acetonitrile product stream, (d) recycling the recycle stream to the first distillation column, and (e) distilling the acetonitrile product stream to yield a purified acetonitrile product stream of at least 98 wt. % acetonitrile.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 21, 2020
    Applicant: Ascend Performance Materials Operations LLC
    Inventors: Basil Michael, Carl Alexander Diaz, Billy Nelson, Kyle Kissell