Patents by Inventor Roland Feiner

Roland Feiner 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 recovery of solvent from solvent-containing cellulosic particles
    Patent number: 12070701
    Abstract: A process (100) for the recovery of solvent (1) from solvent-containing cellulosic particles (2) is shown, the process comprising the steps: a) extracting the solvent (1) from the cellulosic particles (2) by means of a liquid extraction medium (3), thereby obtaining a solvent-enriched extraction medium (5), and b) obtaining the recovered solvent (6) from the solvent-enriched extraction medium (5). In order to improve the efficiency of the process, it is proposed that in step a) the solvent (1) is extracted from the cellulosic particles (2) in a continuous flow extraction reactor (4), wherein the extraction medium (3) continuously flows through the extraction reactor (4) to extract the solvent (1) from the cellulosic particles (2).
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: August 27, 2024
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Roland Feiner, Thi Huyen Trang Trinh, Christian Sperger
  • PROCESS FOR THE RECOVERY OF SOLVENT FROM SOLVENT-CONTAINING CELLULOSIC PARTICLES
    Publication number: 20220387905
    Abstract: A process (100) for the recovery of solvent (1) from solvent-containing cellulosic particles (2) is shown, the process comprising the steps: a) extracting the solvent (1) from the cellulosic particles (2) by means of a liquid extraction medium (3), thereby obtaining a solvent-enriched extraction medium (5), and b) obtaining the recovered solvent (6) from the solvent-enriched extraction medium (5). In order to improve the efficiency of the process, it is proposed that in step a) the solvent (1) is extracted from the cellulosic particles (2) in a continuous flow extraction reactor (4), wherein the extraction medium (3) continuously flows through the extraction reactor (4) to extract the solvent (1) from the cellulosic particles (2).
    Type: Application
    Filed: October 21, 2020
    Publication date: December 8, 2022
    Inventors: Roland Feiner, Thi Huyen Trang Trinh, Christian Sperger