Patents by Inventor Alejandro Alvarez

Alejandro Alvarez 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).

  • Continuous antisolvent crystallization process and system using plug flow reactors
    Patent number: 8216363
    Abstract: A process and system for continuous crystallization of a compound using antisolvent addition in which a solution is prepared with an organic compound and a solvent. An antisolvent is added to the solution in a continuous plug flow system comprising at least one process module. The antisolvent can be added in multiple addition points such that the overall amount of antisolvent added to the continuous plug flow reactor remains fixed. The multiple addition point technique provides every process module with an equal volume of antisolvent. Finally, crystals are recovered from the slurry upon exiting the system. Preferably, the mean crystal size is less than 100 ?m.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: July 10, 2012
    Assignee: Illinois Institute of Technology
    Inventors: Allan S. Myerson, Alejandro Alvarez
  • CONTINUOUS ANTISOLVENT CRYSTALLIZATION PROCESS AND SYSTEM USING PLUG FLOW REACTORS
    Publication number: 20100105907
    Abstract: A process and system for continuous crystallization of a compound using antisolvent addition in which a solution is prepared with an organic compound and a solvent. An antisolvent is added to the solution in a continuous plug flow system comprising at least one process module. The antisolvent can be added in multiple addition points such that the overall amount of antisolvent added to the continuous plug flow reactor remains fixed. The multiple addition point technique provides every process module with an equal volume of antisolvent. Finally, crystals are recovered from the slurry upon exiting the system. Preferably, the mean crystal size is less than 100 ?m.
    Type: Application
    Filed: October 27, 2008
    Publication date: April 29, 2010
    Inventors: Allan S. Myerson, Alejandro Alvarez