Patents by Inventor Pekka Tynjaelae

Pekka Tynjaelae 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 PREPARING BATTERY GRADE METAL SULPHATE SOLUTIONS
    Publication number: 20230312368
    Abstract: Battery grade metal sulfate solutions can be prepared directly from electrolytically produced metal objects, such as cathode plates, when these are subjected to an aqueous leaching solution comprising at least one acid leaching agent and a liquid oxidizing agent in a continuous process at elevated temperature and with vigorous mixing. A leaching arrangement comprising a leaching column or reaction vessel is also disclosed.
    Type: Application
    Filed: September 7, 2021
    Publication date: October 5, 2023
    Inventors: Cornelia Lantto, Tom Niemi, Pekka Alisaari, Esa Lindell, Rauno Luoma, Tuomo Laukkanen, Pekka Tynjälä, Ulla Lassi
  • Method for treating lignin-based material
    Patent number: 10035957
    Abstract: A method of treating lignin-based material is provided, comprising the steps of subjecting lignin separated from lingo-cellulosic raw material to hydrothermal carbonization process at an elevated temperature, where carbonized lignin having increased carbon content is obtained, and stabilizing the obtained carbonized lignin under inert atmosphere at a stabilization temperature higher than the temperature of the hydrothermal carbonization process.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 31, 2018
    Assignee: Valmet Technologies Oy
    Inventors: Tuomo Hilli, Pekka Tynjaelae, Henrik Romar
  • METHOD FOR TREATING LIGNIN-BASED MATERIAL
    Publication number: 20160230099
    Abstract: A method of treating lignin-based material is provided, comprising the steps of subjecting lignin separated from lingo-cellulosic raw material to hydrothermal carbonization process at an elevated temperature, where carbonized lignin having increased carbon content is obtained, and stabilizing the obtained carbonized lignin under inert atmosphere at a stabilization temperature higher than the temperature of the hydrothermal carbonization process.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 11, 2016
    Inventors: Tuomo Hilli, Pekka Tynjaelae, Henrik Romar